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Other FMEA Sources
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FMEA Abstracts (use of search
function recommended)
2009 - 2008 -
2007 - 2006 -
2005 - 2004
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2002 - 2001 -
2000 -
earlier
2008
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Record 1 of 83 |
| Author(s): Granstrom, R (Granstrom, R.) |
| Title: A system and stakeholder approach for the
identification of condition information: a case study for
the Swedish railway |
| Source: PROCEEDINGS OF THE INSTITUTION OF
MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID
TRANSIT, 222 (4): 399-412 DEC 2008 |
| Abstract: The purpose of this paper is to
identify stakeholders' need for system condition information
in order to improve railway punctuality. The paper provides
a holistic formulation of maintenance-related punctuality
problems within the interface between the contact wire and
the pantograph. From the identified problem formulation, the
information needed to Support the maintenance of technical
functions can be identified. The incorporated system and
stakeholder perspective adds a dimension to the explanation
of what information is needed and why it is needed. The
system and stakeholder perspective on the assessment of the
information need can serve as decision support when
acquiring new condition monitoring technologies. On the
basis of the problem formulation, this perspective can also
serve as an illustration of how information is to be used to
improve punctuality. In order to identify stakeholders' need
for system condition information, a failure mode and effects
analysis (FMEA) approach was used. The FMEA is complemented
with information derived from informal interviews performed
with a variety of experts working with issues related to
contact wires and pantographs. The applied methodology can
be useful for conducting further research Studies on other
stakeholder and engineering interfaces, such as the
wheel-rail interface. |
| ISSN: 0954-4097 |
| DOI: 10.1243/09544097JRRT183 |
| Record 2 of 83 |
| Author(s): Denger, C (Denger, Christian); Trapp,
M (Trapp, Mario); Liggesmeyer, P (Liggesmeyer, Peter) |
| Editor(s): Harrison, MD; Sujan, MA |
| Title: SafeSpection - A Systematic Customization
Approach for Software Hazard Identification |
| Source: COMPUTER SAFETY, RELIABILITY, AND
SECURITY, PROCEEDINGS, 5219: 44-57 2008 |
| Book series title: LECTURE NOTES IN COMPUTER
SCIENCE |
| Conference Title: 27th International Conference
on Computer Safety, Reliability, and Security |
| Conference Date: SEP 22-25, 2008 |
| Conference Location: Newcastle upon Tyne, ENGLAND |
| Abstract: Software is an integral part of many
technical systems and responsible for the realization of
safety-critical features contained therein. Consequently,
software has to be carefully considered in safety analysis
efforts to ensure that it does not cause any system hazards,
Safety engineering approaches borrowed from systems
engineering, like Failure Mode and Effect Analysis. Fault
Tree Analysis, or Hazard and Operability Studies, have been
applied on software-intensive systems. However, in order to
be successful, tailoring is needed to the characteristics of
software and the concrete application context. Furthermore,
due to the manual and expert-dependent nature of these
techniques, the results are often not repeatable and address
mainly syntactic issues. This paper presents the concepts of
a customization framework to support the definition and
implementation of project-specific software hazard
identification approaches. The key-concepts of the approach,
generic guide-phrases, and tailoring concepts to create
objective, project-specific support to detect
safety-weaknesses of software-intensive systems are
introduced. |
| ISSN: 0302-9743 |
| ISBN: 978-3-540-87697-7 |
| Record 3 of 83 |
| Author(s): Chen, LH (Chen, Liang-Hsuan); Ko, WC (Ko,
Wen-Chang) |
| Title: Fuzzy linear programming models for new
product design using QFD with FMEA |
| Source: APPLIED MATHEMATICAL MODELLING, 33 (2):
633-647 FEB 2009 |
| Abstract: Quality function deployment (QFD) is it
customer-driven approach in processing new product
developments in order to maximize customer satisfaction.
Determining the fulfillment levels of design requirements (DRs)
and parts characteristics (PCs) is ail important decision
problem during QFD activity processes for new product
development. Unlike the existing literature, which mainly
focuses oil the determination of DRs, this paper proposes
fuzzy linear programming models to determine the fulfillment
levels of PCs under the requirement to achieve the
determined contribution levels of DRs for customer
satisfaction. In addition, considering the design risk, this
paper incorporates failure modes and effect analysis (FMEA)
into QFD processes, which is treated its the constraint in
the models. To cope with the vague nature of product
development processes, fuzzy approaches are used for both
FMEA and QFD. The illustration of the proposed models is
performed with it numerical example to demonstrate the
applicability in practice. (C) 2007 Elsevier Inc. All rights
reserved. |
| ISSN: 0307-904X |
| DOI: 10.1016/j.apm.2007.11.029 |
| Record 4 of 83 |
| Author(s): Laskova, A (Laskova, Andrea); Tabas, M
(Tabas, Marek) |
| Title: Method for the Systematical Hazard
Identification |
| Source: PROCESS SAFETY PROGRESS, 27 (4): 289-292
DEC 2008 |
Abstract: Industrial accidents are usually
accompanied by negative consequences for human life,
property, and environment. Simultaneously, accidents can
provide new knowledge of chemical processes and their
properties These accidents and their analysis are usually
complicated, but they are important sources of information
that highlight the dangers of neglecting safety in chemical
companies, and the results are also used to improve risk
assessments.
The aim of this hazard identification method is to use past
accident results to prioritize efforts by focusing on the
critical points of a process, prior to making a detailed
quantitative assessment.
The critical points (for example pipelines, vessels, etc.)
are identified before making the detailed analyses such as
FMEA, HAZOP, etc. Results of this method are the input to
quantitative assessments, including: (a) estimation of event
frequency, (b) estimation of the consequences, (c)
comparison with the hazards, and (d) decisions and actions.
The most difficult and timely step is the estimation of the
consequences of accident scenarios. This hazard
identification metho focuses on the critical points of a
process before making quantitative assessments; therefore it
enhances the quality of risk assessments while reducing the
costs.
This article describes a selection method to identify the
major sources of potentially serious accidents with
consequences beyond the boundaries of the premises. This
method can be used to compare different technologies in the
assessment process and assist in prioritizing efforts to
reduce risks. This method is used for the installation of
new equipment and controls, and it is also used to schedule
training and maintenance on the systems with the highest
potential hazards. The maintenance and training schedules
are also prioritized based on the hazard ratings. (C) 2008
American Institute of Chemical Engineers Process Saf Prog
27: 289-292, 2008 |
| ISSN: 1066-8527 |
| DOI: 10.1002/prs.10265 |
| Record 5 of 83 |
| Author(s): Colvin, R (Colvin, Robert); Grunske, L
(Grunske, Lars); Winter, K (Winter, Kirsten) |
| Title: Timed Behavior Trees for Failure Mode and
Effects Analysis of time-critical systems |
| Source: JOURNAL OF SYSTEMS AND SOFTWARE, 81 (12):
2163-2182 Sp. Iss. SI DEC 2008 |
| Conference Title: Australian Software Engineering
Conference |
| Conference Date: APR 10-13, 2007 |
| Conference Location: Melbourne, AUSTRALIA |
| Abstract: Behavior Trees are a graphical notation
used for formalising functional requirements, and have been
successfully applied to several industrial case studies.
However, the standard notation does not support the concept
of time, and consequently its application is limited to
non-real-time systems. To overcome this limitation we extend
the notation to timed Behavior Trees. We provide an
operational semantics which is based on timed automata, and
thus serves as a formal basis for the translation of timed
Behavior Trees into the input notation of the timed model
checker UPPAAL. System-level timing properties of a Behavior
Tree model can then be automatically verified using UPPAAL.
Based on the notational extensions with model checking
support, we introduce timed Failure Mode and Effects
Analysis, a process for identifying cause-consequence
relationships between component failures and system hazards
in real-time safety critical systems. (C) 2008 Elsevier Inc.
All rights reserved. |
| ISSN: 0164-1212 |
| DOI: 10.1016/j.jss.2008.04.035 |
| Record 6 of 83 |
| Author(s): Gilbert, JM (Gilbert, James M.) |
| Book Group Author(s): IEEE |
| Title: Integrating Design, Manufacture and Test
using Capability Measures |
| Source: ESTC 2008: 2ND ELECTRONICS
SYSTEM-INTEGRATION TECHNOLOGY CONFERENCE, VOLS 1 AND 2,
PROCEEDINGS: 947-952 2008 |
| Conference Title: 2nd Electronics
System-Integration Technology Conference |
| Conference Date: SEP 01-04, 2008 |
| Conference Location: Greenwich, ENGLAND |
Abstract: Successful electronic products rely on
a combination of good design, appropriate manufacturing
processes and effective test and inspection. In order to
achieve all of these within a highly cost constrained
environment requires that sufficient, but not excessive,
resources are applied to each area. One problem which makes
it difficult to balance the allocation of resources is that
different measures of performance are used in each context.
In the design domain, the objectives are typically design
centring, robust design, part count reduction or component
cost reduction. Objectives in manufacturing processes are
typically yield maximisation, process capability, defect
reduction etc. In the test arena, the aim is typically to
maximise test coverage and minimising test/inspection times.
Given this plethora of different measures of performance, it
is difficult to assess trade-offs between different domains
and decide appropriate resource allocations.
In order to address this problem we have proposed a unified
measure of capability across the design/manufacture/test
spectrum. This is based on the process capability measure C-pk
which has been adapted to measure functional capability: the
ability of a design to meet its performance specification in
the presence of component parameter variations, and to test
capability: the ability of test/inspection processes to
correctly identify defects without erroneously indicating
defects which are not present. These capability measures may
be related to the costs arising from defects through scrap,
rework and warranty returns through a Failure Modes and
Effects Analysis (FMEA) and a quality cost mapping process.
This makes it possible to quantify and compare the cost
consequences of design decisions. This unifying analysis
methodology is termed electronic Conformability Analysis (eCA).
The paper introduces the eCA methodology, explains the
functional, manufacture and test capability measures and
shows how these may be related to quality cost. The
application of the methodology to a simple example circuit
is presented. |
| ISBN: 978-1-4244-2813-7 |
| Record 7 of 83 |
| Author(s): Ajayi, M (Ajayi, M.); Smart, P (Smart,
P.) |
| Title: Innovation and learning: exploring
feedback from service to design |
| Source: PROCEEDINGS OF THE INSTITUTION OF
MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING
MANUFACTURE, 222 (9): 1195-1199 SEP 2008 |
| Abstract: Successful product innovation demands
better integration between the design and service functions
of corporations. This requires effective feedback from the
field about 'product in use' performance to influence the
design of future product and service market offerings that
will genuinely contribute to increased customer
satisfaction. With the availability of high-quality product
field data, the application of techniques such as failure
mode effect and analysis (FMEA) can be used to identify and
classify failures, analyse their root causes, and propose
likely failure consequences to reduce future risks in
product development. The present paper discusses the
preliminary findings of an exploratory study, in a leading
multinational heating company, into the nature and operation
of the feedback process from the service to the design
function. Initial findings demonstrate that feedback is
essentially a learning process that seeks to drive
innovation in product development. In addition, some
emerging antecedents of an effective feedback process are
also presented. These include the need to: capture not only
textual data but also contextual information about product
failures; have appropriate classification systems; collect
and record detailed and accurate failure data; formalize
feedback processes; and improve integrating mechanisms to
allow open and closed-loop communications between the
service and design functions. |
| ISSN: 0954-4054 |
| DOI: 10.1243/09544054JEM1108SC |
| Record 8 of 83 |
| Author(s): Straube, F (Straube, Frank); Bensel, P
(Bensel, Philipp); Furstenberg, F (Fuerstenberg, Frank) |
| Title: SCEM: Configuration by a modified FMEA |
| Source: PPS MANAGEMENT, 13 (3): 53-56 OCT 2008 |
| Abstract: The quality of the configuration
process determines how well a SCEM system can perform. This
article proposes a set of modified methods from quality
management that are suited to lead the user through the
definition of events and countermeasures. |
| ISSN: 1434-2308 |
| Record 9 of 83 |
| Author(s): Chen, Z (Chen, Zhi); Feng, KM (Feng,
K. M.); Zhang, GS (Zhang, G. S.); Yuan, T (Yuan, T.); Pan,
CH (Pan, C. H.) |
| Title: Preliminary safety research for CH HCSB
TBM based on FMEA method |
| Source: FUSION ENGINEERING AND DESIGN, 83 (5-6):
743-746 OCT 2008 |
| Abstract: The complexity of the ITER TBM
(International Thermonuclear Experimental Reactor Test
Blanket Module) and the inventories of radioactive materials
involved in its operation require a systematic approach to
perform detailed safety analyses during the various stages
of the project in order to demonstrate compliance with the
safety requirements. A bottom-up methodology based on
component level failure mode and effect analysis (FMEA) has
been applied to perform the safety analyses for Chinese ITER
TBM design with helium-cooled solid breeder (HCSB) concept
for testing in ITER device. The main purposes of the work
are: to identify important accident initiators, to find out
the possible consequences for the TBM deriving from
component failures, to identify individual possible causes,
to identify mitigating features and systems, to classify
accident initiators in postulated initiating events (PIEs),
to define the deterministic analyses which allow the
possible accident sequences to be quantified, and
consequently, to ascertain the fulfillment of ITER safety
requirements. (C) 2008 Elsevier B.V. All rights reserved. |
| ISSN: 0920-3796 |
| DOI: 10.1016/j.fusengdes.2008.05.046 |
| Record 10 of 83 |
| Author(s): Ito, H (Ito, Hachidai); Kaneda, K
(Kaneda, Keiichi); Hamamatsu, K (Hamamatsu, Koichi); Tanaka,
T (Tanaka, Tatsuji); Nara, K (Nara, Koichi) |
| Editor(s): Mastorakis, NE; Mladenov, V; Bojkovic,
Z; Simian, D; Kartalopoulos, S; Varonides, A; Udriste, C;
Kindler, E; Narayanan, S; Mauri, JL; Parsiani, H; Man, KL |
| Title: Dependability Evaluation of Substation
Automation System with Redundancy |
| Source: NEW ASPECTS OF SYSTEMS, PTS I AND II:
713-721 2008 |
| Book series title: Mathematics and Computers in
Science and Engineering |
| Conference Title: 12th WSEAS International
Conference on SYSTEMS |
| Conference Date: JUL 22-24, 2008 |
| Conference Location: Heraklion, GREECE |
Abstract: Substation Automation Systems (SAS) are
widely used for the purpose of control, protection,
monitoring, communication etc. in substations to improve the
reliability of the power supply. SASs adopting IT based
solutions such as Ethernet LAN have recently become more
common although hardwired control has been used in the past
in earlier versions of SAS utilising simple communication
methods. Moreover, IEC 61850 which is the international
standard for communications within substations has been
published, and the application of SAS based on IEC 61850 is
increasing.
It is necessary to select each component and the
configuration of the SAS from the viewpoint of dependability
so that the dependability of the SAS, i.e. reliability,
availability, and serviceability may have a very big impact
in the stability of the power supply in the electric power
transmission and distribution systems.
In this paper, we will describe the configuration policy of
an IEC 61850 based SAS, its actual system configuration and
the redundant configuration to improve dependability. In
addition, we will explain some of the new functions not
currently covered by IEC 61850 that we have developed to
improve usability and availability. Following which we will
present an evaluation of the dependability for MTTF (Mean
Time To Failure), Availability, and FMEA (Failure Mode and
Effects Analysis) for these configurations of SAS based on
the dependability requirements for SAS. |
| ISBN: 978-960-6766-83-1 |
| Record 11 of 83 |
| Author(s): Sham, ML (Sham, Man-Lung); Lui, TC
(Lui, Tung-Chin); Gao, ZY (Gao, Ziyang); Chung, T (Chung,
Tom) |
| Editor(s): Bi, KY; Xiao, F |
| Title: FMEA of System-in-Package (SiP)-based Tire
Pressure Monitoring System |
| Source: 2008 INTERNATIONAL CONFERENCE ON
ELECTRONIC PACKAGING TECHNOLOGY & HIGH DENSITY PACKAGING,
VOLS 1 AND 2: 28-33 2008 |
| Conference Title: International Conference on
Electronic Packaging Technology and High Density Packaging |
| Conference Date: JUL 28-31, 2008 |
| Conference Location: Shanghai, PEOPLES R CHINA |
Abstract: For transferring R&D efforts into real
product manufacturing, proper product reliability
qualification is one of the most critical considerations
during product development in addition to assembly yield
prediction. It is particularly important for automotive
electronics because the operating conditions are extremely
harsh (e.g. -20 degrees C similar to 105 degrees C) and a
number of applications are even related to human safety.
Failure mode and effects analysis (FMEA) of SiP-based Tire
Pressure Monitoring System (TPMS) is selected in this paper
as an illustration of the process for transferring R&D
efforts into real product. FMEA is proven as a useful tool
in the early design stage to identify any potential design
and/or process -related failure modes, corresponding
effects, root causes followed by corrective actions. Better
quality and reliability, shorter system development time and
cost, as well as early identification and elimination of
potential failure modes can therefore be achieved. In
addition, numerical analysis was performed during the course
of FMEA in order to address the potential risks and
therefore to provide proper recommendations. |
| ISBN: 978-1-4244-2739-0 |
| Record 12 of 83 |
| Author(s): Martins, MR (Martins, M. R.); Natacci,
FB (Natacci, F. B.) |
| Editor(s): Jin, HW; Wang, YY; Lillig, DB |
| Title: Reliability Analysis of a Rotary Vane Type
Steering Gear System |
| Source: PROCEEDINGS OF THE EIGHTEENTH (2008)
INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL
4: 478-483 2008 |
| Book series title: International Offshore and
Polar Engineering Conference Proceedings |
| Conference Title: 18th International Offshore and
Polar Engineering Conference (ISOPE 2008) |
| Conference Date: JUL 06-11, 2008 |
| Conference Location: Vancouver, CANADA |
| Abstract: Classification societies have
increasingly been considering new requirements based on risk
as an acceptable means for the design of ships, formerly
based only on the application of old rules. This paper is an
attempt to use some concepts comprised in goal-based
standards in the safety field applied to develop the
qualitative reliability analysis model of the steering gear
system. The main purpose for developing this type of
analysis is to identify weak points in order to improve the
design and operation of the analyzed system, based on the
concepts of RCM, Reliability Centered Maintenance. |
| ISSN: 1098-6189 |
| Record 13 of 83 |
| Author(s): Mertins, K (Mertins, Kai); Wang, WH
(Wang, Wen-Huan) |
| Editor(s): Harorimana, D; Watkins, D |
| Title: Certification of Intellectual Capital
Statements - Quality requirements for ICS |
| Source: PROCEEDINGS OF THE 9TH EUROPEAN
CONFERENCE ON KNOWLEDGE MANAGEMENT: 491-504 2008 |
| Conference Title: 9th European Conference on
Knowledge Management |
| Conference Date: SEP 04-05, 2008 |
| Conference Location: Southampton, ENGLAND |
| Conference Host: Southampton Sloent Univ |
Abstract: Managing 'intellectual capital' (IC)
becomes increasingly vital for future-oriented
organisations. The Intellectual Capital Statement (ICS) is
an instrument to assess, develop and report organisation's
IC and to monitor critical success factors systematically.
It supports strategic management decisions. At present, the
statements about IC are varied in structure and content.
Resulting from increased interests in managing and reporting
of IC, stakeholders such as creditors or investors will
receive more and more ICS of totally different qualities -
from very trustworthy to not at all believable.
To answer the question of 'How to ensure the quality of ICS
in a sustainable way?, we develop an approach of ICS
certification. It bases on the methods of quality management
system certification, financial audit and the assessment for
European Excellence Award. For ICS certification, a neutral
third party will quality check the ICS beforehand and then
audit the organisation on-site. In the end, only the ICS
meeting the quality requirements will be rewarded a
certificate.
However, a catalogue of requirements serves as the
certification basis needs to be in place beforehand. The
challenge is to determine the smallest possible amount of
requirements that will ensure the ICS meeting the quality
criteria: complete, plausible, verifiable, representative
for the organisation and have a sustainable impact on IC
management.
This paper summarises the crucial factors for a quality
assured ICS as shown in the requirement catalogue. The
catalogue is the essence of the guidelines from the German
project 'Wissensbilanz - Made in Germany' and from the EU
collective research project 'Intellectual Capital Statement
(InCaS) - Made in Europe'. By using quality techniques such
as failure mode and effect analysis (FMEA), we examine the
ICS implementation procedure thoroughly for deriving the
crucial minimum quality requirements. Furthermore, we
include the experiences of ICS implementations in 50 German
and 25 European small and medium-sized enterprises. The
paper shows additionally how the catalogue can be applied
both internally, as a quality assurance guide during the ICS
creation, and externally, as a certification basis for ICS
audits.
The benefits of ICS certification are: The company gets a
quality check by a neutral external ICS auditor assuring
that the ICS is of high quality level, in other words, the
assessment outcomes and the measures are 'correct' and based
on verifiable sources. Secondly, the company receives
further improvement suggestions after a detailed on-site
audit by an expert who is familiar with IC performances of
other companies. Finally, a certified ICS has higher
credibility for external stakeholders, such as investors,
creditors and customers, since it is no longer a mere self
assessment result. |
| ISBN: 978-1-906638-10-8 |
| Record 14 of 83 |
| Author(s): Tay, KM (Tay, Kai Meng); Teh, CS (Teh,
Chee Sing); Bong, D (Bong, David) |
| Book Group Author(s): IEEE |
| Title: Development of a fuzzy-logic-based
Occurrence updating model for process FNMA |
| Source: 2008 INTERNATIONAL CONFERENCE ON COMPUTER
AND COMMUNICATION ENGINEERING, VOLS 1-3: 796-800 2008 |
| Conference Title: International Conference on
Computer and Communication Engineering |
| Conference Date: MAY 13-15, 2008 |
| Conference Location: Kuala Lumpur, MALAYSIA |
| Abstract: Risk Priority Number (RPN) ranking
system is used to evaluate the risk level of failures, to
rank failures, and to prioritize actions in traditional
Failure Mode and Effect Analysis (FMEA). The RPN score is
determined by multiplication of three input scores estimated
by users, Le., Severity, Occurrence, and Detect. Even
through this approach is simple, one of the problems is the
difficulty in obtaining a good estimate of the Severity,
Occurrence and Detect ratings. Besides, it is a tedious job
to update the ratings from time to time. In this paper, FMEA
system with a proposed framework equipped with a fuzzy
inference system based Occurrence model to predict the
Occurrence score is proposed, and the fuzzy Occurrence model
is devised. In here, we propose a property for the fuzzy
Occurrence model, i.e., Monotone output property. We try to
derive the condition for the fuzzy Occurrence model to be
monotone such as that the derivative in non negative. From
the derivation, a guideline on how input membership
functions should be tuned is also provided. Simulation
results are analyzed using real information collected from a
semiconductor manufacturing environment. |
| ISBN: 978-1-4244-2357-6 |
| Record 15 of 83 |
| Author(s): Filippini, R (Filippini, Roberto);
Sen, S (Sen, Soumen); Bicchi, A (Bicchi, Antonio) |
| Title: Toward soft robots you can depend on - A
study of antagonistic actuation |
| Source: IEEE ROBOTICS & AUTOMATION MAGAZINE, 15
(3): 31-41 SEP 2008 |
| ISSN: 1070-9932 |
| DOI: 10.1109/MRA.2008.927696 |
| Record 16 of 83 |
| Author(s): Hangos, KM (Hangos, Katalin M.);
Nemeth, E (Nemeth, Erzsebet); Lakner, R (Lakner, Rozalia) |
| Editor(s): Lovrek, I |
| Title: A procedure ontology for advanced
diagnosis of process systems |
| Source: KNOWLEDGE - BASED INTELLIGENT INFORMATION
AND ENGINEERING SYSTEMS, PT 1, PROCEEDINGS, 5177: 501-508
2008 |
| Book series title: LECTURE NOTES IN ARTIFICIAL
INTELLIGENCE |
| Conference Title: 12th International Conference
on Knowledge-Based Intelligent Information and Engineering
Systems |
| Conference Date: SEP 03-05, 2008 |
| Conference Location: Zagreb, CROATIA |
| Abstract: An ontology for representing operation,
safety and control procedures is proposed in this paper that
supports diagnosis based on following these procedures and
combining observed malfunctions with Failure Mode and
Effects Analysis (FMEA) information. The procedure ontology
is defined within interconnected components of the process
plant, diagnostic analysis (where the FMEA is described) and
procedures. The proposed method is illustrated on a simple
operating procedure. |
| ISSN: 0302-9743 |
| ISBN: 978-3-540-85562-0 |
| Record 17 of 83 |
| Author(s): Yang, ZL (Yang, Zaili); Bonsall, S
(Bonsall, Steve); Wang, J (Wang, Jin) |
| Title: Fuzzy rule-based Bayesian reasoning
approach for prioritization of failures in FMEA |
| Source: IEEE TRANSACTIONS ON RELIABILITY, 57 (3):
517-528 SEP 2008 |
| Abstract: This paper presents a novel, efficient
fuzzy rule-based Bayesian reasoning (FuRBaR) approach for
prioritizing failures in failure mode and effects analysis
(FMEA). The technique is specifically intended to deal with
some of the drawbacks concerning the use of conventional
fuzzy logic (i.e. rule-based) methods in FMEA. In the
proposed approach, subjective belief degrees are assigned to
the consequent part of the rules to model the incompleteness
encountered in establishing the knowledge base. A Bayesian
reasoning mechanism is then used to aggregate all relevant
rules for assessing and prioritizing potential failure
modes. A series of case studies of collision risk between a
floating, production, storage, and offloading (FP SO) system
and a shuttle tanker caused by technical failure during
tandem offloading operation is used to illustrate the
application of the proposed model. The reliability of the
new approach is tested by using a benchmarking technique
(with a well-established fuzzy rule-based evidential
reasoning method), and a sensitivity analysis of failure
priority values. |
| ISSN: 0018-9529 |
| DOI: 10.1109/TR.2008.928208 |
| Record 18 of 83 |
| Author(s): Tay, KM (Tay, Kai Meng); Lim, CP (Lim,
Chee Peng) |
| Title: On the use of fuzzy inference techniques
in assessment models: part I - theoretical properties |
| Source: FUZZY OPTIMIZATION AND DECISION MAKING, 7
(3): 269-281 SEP 2008 |
| Abstract: An assessment model is a mathematical
model that produces a measuring index, either in the form of
a numerical score or a category to a situation/object, with
respect to the subject of measure. From the numerical score,
decision can be made and action can be taken. To allow valid
and useful comparisons among various situations/objects
according to their associated numerical scores to be made,
the monotone output property and the output resolution
property are essential in fuzzy inference-based assessment
problems. We investigate the conditions for a fuzzy
assessment model to fulfill the monotone output property
using a derivative approach. A guideline on how the input
membership functions should be tuned is also provided.
Besides, the output resolution property is defined as the
derivative of the output of the assessment model with
respect to its input. This derivative should be greater than
the minimum resolution required. From the derivative, we
suggest improvements to the output resolution property by
refining the fuzzy production rules. |
| ISSN: 1568-4539 |
| DOI: 10.1007/s10700-008-9036-z |
| Record 19 of 83 |
| Author(s): Tay, KM (Tay, Kai Meng); Lim, CP (Lim,
Chee Peng) |
| Title: On the use of fuzzy inference techniques
in assessment models: part II: industrial applications |
| Source: FUZZY OPTIMIZATION AND DECISION MAKING, 7
(3): 283-302 SEP 2008 |
| Abstract: In this paper, we study the
applicability of the monotone output property and the output
resolution property in fuzzy assessment models to two
industrial Failure Mode and Effect Analysis (FMEA) problems.
First, the effectiveness of the monotone output property in
a single-input fuzzy assessment model is demonstrated with a
proposed fuzzy occurrence model. Then, the usefulness of the
two properties to a multi-input fuzzy assessment model,
i.e., the Bowles fuzzy Risk Priority Number (RPN) model, is
assessed. The experimental results indicate that both the
fuzzy occurrence model and Bowles fuzzy RPN model are able
to fulfill the monotone output property, with the derived
conditions (in Part I) satisfied. In addition, the proposed
rule refinement technique is able to improve the output
resolution property of the Bowles fuzzy RPN model. |
| ISSN: 1568-4539 |
| DOI: 10.1007/s10700-008-9037-y |
| Record 20 of 83 |
| Author(s): Hsu, CW (Hsu, Chia-Wei); Hu, AH (Hu,
Allen H.); Wu, WC (Wu, Wei-Cheng) |
| Book Group Author(s): IEEE |
| Title: Using FMEA and FABP to risk evaluation of
green components |
| Source: 2008 IEEE INTERNATIONAL SYMPOSIUM ON
ELECTRONICS AND THE ENVIRONMENT: 330-335 2008 |
| Conference Title: 16th IEEE International
Symposium on Electronics and the Environment |
| Conference Date: MAY 19-21, 2008 |
| Conference Location: San Francisco, CA |
| Abstract: This study utilized the failure modes
and effects analysis (FMEA) to analyze the risks of
components in compliance with the EU RoHS directive in the
incoming quality control (IQC) stage, which is based on a
case of an electronic manufacturer in Taiwan. There are
three indices of FMEA in this work: the occurrence (O) that
can be learned from the testing report; the likelihood of
being detected (D) that refers to the difficulty of
detection; and severity (S) that can be quantified from the
declaration statement (S-1) and the frequency of green
component used by project (S-2). The fuzzy analytic
hierarchy process (FARP) was applied to determine the
relative weightings of four factors' then a green component
risk priority number (GC-RPN) can be calculated for each one
of the components, which are provided by the suppliers to
identify and manage the risks that may be derived from them.
Numerical results indicated that through the use of the
proposed approach, the detected rate of the high risk green
components can at least be improved to 20%. |
| ISBN: 978-1-4244-2272-2 |
| Record 21 of 83 |
| Author(s): Yu, SS (Yu Susheng); Authors, DJ
(Authors, Deng Jie) |
| Editor(s): Hong, W; Yang, GQ |
| Title: A method for reliability increasing test
of wireless base station product |
| Source: 2008 GLOBAL SYMPOSIUM ON MILLIMETER
WAVES: 74-77 2008 |
| Conference Title: Global Symposium on Millimeter
Waves |
| Conference Date: APR 21-24, 2008 |
| Conference Location: Nanjing, PEOPLES R CHINA |
| Abstract: This paper has described the general
process that reliability of wireless base station product is
increased by using HALT test technique. For example, the
HALT test process of wireless base station type A and its
reliability enhancement is described. |
| ISBN: 978-1-4244-1885-5 |
| Record 22 of 83 |
| Author(s): Siebers, C (Siebers, C.); Stegmaier, J
(Stegmaier, J.); Kirchhoff, C (Kirchhoff, C.); Wirth, S
(Wirth, S.); Koerner, M (Koerner, M.); Kay, MV (Kay, M. V.);
Pfeifer, KJ (Pfeifer, K. -J.); Kanz, KG (Kanz, K. -G.) |
| Title: Analysis of failure modes in multislice
computed tomography during primary trauma survey |
| Source: ROFO-FORTSCHRITTE AUF DEM GEBIET DER
RONTGENSTRAHLEN UND DER BILDGEBENDEN VERFAHREN, 180 (8):
733-739 AUG 2008 |
Abstract: Purpose: In the case of Major trauma,
immediate recognition and treatment of life-threatening
conditions are essential. An increasing number of European
traurna centers use MSCT during the primary trauma survey
due to its high diagnostic precision and speed. However,
there is currently little empirical data about failures in
this process to practice quality assurance. The aim of this
Study was to evaluate this process under operating
resuscitation conditions and to identify failure modes that
caused delays in completion.
Materials and Methods: An independent study monitor
documented the course of trauma room treatment during a
10-month period. The inclusion criteria were patients who
were admitted directly from the accident scene and the study
monitor was present at the time of admission.
Results: According to our ATLS-based trauma algorithm
whole-body CT (WBCT) consists of noncontrast head CT (CCT)
and contrast-enhanced trunk CT (TCT). 57 trauma patients
receiving 45 WBCT. 5 single CCT and 4 single TCT studies
were evaluated. After initial resuscitation, CCT was
obtained within 17 min of traurna room admission (IQR 13.0 -
20.0). In 20% (95%CI 9 - 31 %) of the cases, a CCT delay of
median 5.0 min (IQR 3.8-8.0) was observed caused by e.g.
earings, piercings and ECG cables in the scan field or
intoxicated patients. Contrast-enhanced TCT was performed
after 23.0 min (IQR 19.0 - 27.0). Due to preventable errors
12 of the 49 TCT Studies were delayed (25%95%CI 12-37%) for
5 min (IQR 3.0 - 8.0).
Conclusion: Under "front line" conditions every fifth CCT
and every fourth TCT study was completed with a median delay
of 5 min. An independent process analysis revealed that
unpreventable delays were due to uncooperative patients or
system failure. Preventable delays were due to errors such
as short intravenous lines or deviation from trauma room
algorithms. Preventable delays could be avoided by
addressing human and technical aspects such as revising
checklists and functional architecture of the trauma bay.
The failure mode and effect analysis (FMEA) method would
assure quality in this process. |
| ISSN: 1438-9029 |
| DOI: 10.1055/s-2008-1027561 |
| Record 23 of 83 |
| Author(s): Babeshko, E (Babeshko, Eugene);
Kharchenko, V (Kharchenko, Vyacheslav); Gorbenko, A
(Gorbenko, Anatoliy) |
| Editor(s): Zamojski, W; Mazurkiewicz, J; Sugier,
J; Wallowiak, T |
| Title: Applying F(I)MEA-technique for SCADA-based
industrial control systems dependability assessment and
ensuring |
| Source: DEPCOS - RELCOMEX 2008: PROCEEDINGS OF
THE INTERNATIONAL CONFERENCE ON DEPENDABILITY OF COMPUTER
SYSTEMS: 309-315 2008 |
| Conference Title: International Conference on
Dependability of Computer Systems |
| Conference Date: JUN 26-28, 2008 |
| Conference Location: Szklarska, POLAND |
| Abstract: Dependability and security analysis of
the industrial control computer-based systems (ICS) is an
open problem. ICS is a complex system that as a rule
consists of two levels supervisory control and data
acquisition (SCADA) and programmable logic controllers (PLC)
and has vulnerabilities on both levels. This paper presents
results of the SCADA-based ICS dependability and security
analysis using a modification of standardized FMEA (Failure
Modes and Effects Analysis)-technique. The technique
mentioned takes into account possible intrusions and is
called F(I)MEA (Failure (Intrusion) Modes and Effects
Analysis). F(I)MEA technique is applied for determining the
weakest parts of ICS and the required means of fault
prevention,fault detection and fault-tolerance ensuring. An
example of F(I)MEA -technique applying for SCADA
vulnerabilities analysis is provided. The solutions of
SCADA-based ICS dependability improvement are proposed. |
| ISBN: 978-0-7695-3179-3 |
| Record 24 of 83 |
| Author(s): Bower, G (Bower, Gregory); Rogan, C
(Rogan, Chris); Kozlowski, J (Kozlowski, James); Zugger, M
(Zugger, Michael) |
| Book Group Author(s): IEEE |
| Title: SiC power electronics packaging
prognostics |
| Source: 2008 IEEE AEROSPACE CONFERENCE, VOLS 1-9:
3639-3650 2008 |
| Book series title: IEEE AEROSPACE CONFERENCE
PROCEEDINGS |
| Conference Title: 2008 IEEE Aerospace Conference |
| Conference Date: MAR 01-08, 2008 |
| Conference Location: Big Sky, MT |
| Abstract: Electronic packages may be subjected to
a wide array of potential failure modes throughout their
useful lifetimes. Package design for SiC power electronic
devices must account for a number of these potential failure
modes, especially those due to the high operating
temperatures and power levels at which the semiconductor
must operate. High temperature SiC package design is still a
relatively immature technology with little information
published which discusses package failure. Conversely, the
current generation of Si-based packaging technology is quite
mature and, therefore, may be capable of providing useful
insight with regards to the dominant failures that may be
seen in the operational life of SiC and Si high power
packaging. A literature survey completed produced
considerable information relating to the many known failure
mechamisms for Si-based electronic packages. Using the
information obtained from this survey, a Failure Mode and
Effects Analysis (FMEA) was completed and failure modes
considered to have high probability of occurrence in a
SiC-based package were identified. The dominant failure
modes targeted were bond wire fatigue, solder joint fatigue
and encapsulant breakdown. Life models for the fatigue
failures were developed using forms of the Coffin-Manson
relationship. A life model for encapsulant breakdown was
also developed using dielectric fatigue and Partial
Discharge (PD) mechanisms through the
Dissado-Mazzanti-Montanari (DMM) model and PD model,
respectively. These above models will then be used to
prognosticate the electronic packaging.(12). |
| ISSN: 1095-323X |
| ISBN: 978-1-4244-1487-1 |
| Record 25 of 83 |
| Author(s): Cheng, CL (Cheng, C. L.); Yen, CJ
(Yen, C. J.); Wong, LT (Wong, L. T.); Ho, KC (Ho, K. C.) |
| Title: An evaluation tool of infection risk
analysis for drainage systems in high-rise residential
buildings |
| Source: BUILDING SERVICES ENGINEERING RESEARCH &
TECHNOLOGY, 29 (3): 233-248 2008 |
Abstract: This study proposes a simple risk
analysis tool and evaluation level for the probable
infection due to a contaminated drainage stack in
residential high-rise buildings in some Asian cities which
have equivalent drainage systems. The methodology would
follow the conception of FMEA (Failure Mode Effects
Analysis). In particular, key risk factors including
connections between appliance and stack, the plumbing
system, ventilation, equipment life and maintenance were
surveyed and used to evaluate the overall risk associated in
high-rise residential buildings with Monte Carlo
simulations. With the proposed tool, regional risks of
infection due to the building drainage systems were
estimated, with respect to the city building age and height
profiles. The results showed that a city with a high-rise
environment would associate a higher spreading risk due to
the drainage system.
Practical applications: Following the outbreak of SARS
(Severe Acute Respiratory Syndrome) in early 2003, the
operational performance of drainage systems in high-rise
residential buildings has become a major concern. The
assessment system would be practical and sensible for
evaluating the infection risk in building drainage systems
for both existing buildings and new construction. The
assessment tool may provide the government, designers and
the occupants a source of reference to judge drainage system
performance in either new construction or the existing
building, so that improvements would be conducted. |
| ISSN: 0143-6244 |
| DOI: 10.1177/0143624408091448 |
| Record 26 of 83 |
| Author(s): Mahmoodzadeh, A (Mahmoodzadeh, Amir);
Mazaheri, MM (Mazaheri, Mohammad Mehdi) |
| Editor(s): Santini, A; Moraci, N |
| Title: A new quantitative method for the rapid
evaluation of buildings against earthquakes |
| Source: 2008 SEISMIC ENGINEERING CONFERENCE
COMMEMORATING THE 1908 MESSINA AND REGGIO CALABRIA
EARTHQUAKE, PARTS 1 AND 2, 1020: 1755-1766 Part 1-2 2008 |
| Book series title: AIP CONFERENCE PROCEEDINGS |
| Conference Title: Conference on Seismic
Engineering Conference |
| Conference Date: JUL 08-11, 2008 |
| Conference Location: Calabria, ITALY |
| Conference Host: Univ Reggio |
| Abstract: At the present time there exist
numerous weak buildings which are not able to withstand
earthquakes. At the same time, both private and public
developers are trying to use scientific methods to
prioritize and allocate budget in order to reinforce the
above mentioned structures. This is because of the limited
financial resources and time. In the recent years the
procedure of seismic assessment before rehabilitation of
vulnerable buildings has been implemented in many countries.
Now, it seems logical to reinforce the existing procedures
with the mass of available data about the effects caused by
earthquakes on buildings. The main idea is driven from FMEA
(Failure Mode and Effect Analysis) in quality management
where the main procedure is to recognize the failure, the
causes, and the priority of each cause and failure.
Specifying the causes and effects which lead to a certain
shortcoming in structural behavior during earthquakes, an
inventory is developed and each building is rated through a
yes-or-no procedure. In this way, the rating of the
structure is based on some standard forms which along with
relative weights are developed in this study. The resulted
criteria by rapid assessment will indicate whether the
structure is to be demolished, has a high, medium or low
vulnerability or is invulnerable. |
| ISSN: 0094-243X |
| ISBN: 978-0-7354-0542-4 |
| Record 27 of 83 |
| Author(s): Elmqvist, J (Elmqvist, Jonas);
Nadjm-Tehrani, S (Nadjm-Tehrani, Simin) |
| Book Group Author(s): IEEE |
| Title: Tool support for incremental Failure Mode
and Effects Analysis of component-based systems |
| Source: 2008 DESIGN, AUTOMATION AND TEST IN
EUROPE, VOLS 1-3: 800-806 2008 |
| Book series title: Design, Automation and Test in
Europe Conference and Expo |
| Conference Title: Design, Automation and Test in
Europe Conference and Exhibition (DATE 08) |
| Conference Date: MAR 10-14, 2008 |
| Conference Location: Munich, GERMANY |
Abstract: Failure Mode and Effects Analysis
(FMEA) is a well-known technique widely used for safety
assessment in the area of safety-critical systems. However
FMEA is traditionally done manually which makes it both
time-consuming and costly, specially for large and complex
systems. Also, small modifications in the design may result
in a complete revision of the initial FMEA.
This paper presents a tool support for automated incremental
component-based FMEA of SW and HW. It is based on component
safety interfaces and a formal compositional safety analysis
method. This tool support enables engineers to focus on more
important steps in the safety assessment process. Also,
during system upgrades, the tool incrementally registers the
changes and identifies possible effects in the FMEA which
enables the use of earlier safety analysis results. Finally,
this formal approach based on design models of the
components and the system always creates FMEAs which are
consistent with the system design. |
| ISSN: 1530-1591 |
| ISBN: 978-3-9810801-3-1 |
| Record 28 of 83 |
| Author(s): Rogers, P (Rogers, P.); Hughes, D
(Hughes, D.) |
| Title: Failure Modes and Effects Analysis (FMEA)
of the dispensing process |
| Source: PHARMACY WORLD & SCIENCE, 30 (4): 386-387
AUG 2008 |
| ISSN: 0928-1231 |
| Record 29 of 83 |
| Author(s): Wang, SF (Wang Suifeng); Ren, Q (Ren
Qian); Zhang, YJ (Zhang Yongjun) |
| Book Group Author(s): IEEE |
| Title: Interruption cost evaluation for
distribution system reliability using analytical and
statistical technique |
| Source: 2007 CONFERENCE PROCEEDINGS IPEC, VOLS
1-3: 822-826 2007 |
| Conference Title: IPEC 2007 Meeting |
| Conference Date: DEC 03-06, 2007 |
| Conference Location: Singapore, SINGAPORE |
| Abstract: To evaluate the interruption cost of
distribution system, this paper presents an improved FMEA
method to calculate reliability, and a statistical approach
to gain Sector Custom Average Damage Function (SCADF). A
feeder is firstly divided into line blocks and load blocks
according to the isolation devices. Based on these blocks,
an equivalent mathematic model is introduced to sum up the
elements' data. Load point indexes and system indexes can be
evaluated after analyzing the failure mode effect of the
distribution network. There has been a survey method for
SCADF, whose result is accurate but not universal for
different areas. So in this paper, an alternate method is
also presented, using the product value which customer
created and the electric energy which the process consumed,
involving some statistics theory such as regression
analysis. The related data can be available easily from the
regional government bureau of statistic and the power supply
corporation. At last, an actual feeder is illustrated to
demonstrate the efficiency of the proposed method. |
| ISBN: 978-981-05-9423-7 |
| Record 30 of 83 |
| Author(s): Ozarin, N (Ozarin, Nathaniel) |
| Book Group Author(s): IEEE |
| Title: The role of software failure modes and
effects analysis for interfaces in safety- and
mission-critical systems |
| Source: 2008 2ND ANNUAL IEEE SYSTEMS CONFERENCE:
252-259 2008 |
| Conference Title: 2nd Annual IEEE Systems
Conference |
| Conference Date: APR 07-10, 2008 |
| Conference Location: Montreal, CANADA |
| Abstract: Complex systems are often developed by
independent design teams whose boundaries are defined by
interface design documents. Software interface documents, in
particular, can be incomplete and ambiguous without anyone
realizing it. Such weaknesses can lead to inadequate and
incomplete testing prior to system integration prolonged
integration problems, and expensive last-minute design
changes. Additionally, interface design problems may result
in system-level performance issues and inadequate
robustness. An important line of defense against interface
errors and ambiguities in a safety- or mission-critical
system is a software failure mode and effects analysis
(SFMEA). This paper explains SFMEA and its use to help
identify and correct interface problems. |
| ISBN: 978-1-4244-2149-7 |
| Record 31 of 83 |
| Author(s): Harms, J (Harms, Jean); Wang, XY
(Wang, Xiangyang); Kim, T (Kim, Tina); Yang, XM (Yang,
Xiaoming); Rathore, AS (Rathore, Anurag S.) |
| Title: Defining process design space for biotech
products: Case study of Pichia pastoris fermentation |
| Source: BIOTECHNOLOGY PROGRESS, 24 (3): 655-662
MAY-JUN 2008 |
| Conference Title: 234th National Meeting of the
American-Chemical-Society |
| Conference Date: AUG 19-23, 2007 |
| Conference Location: Boston, MA |
| Abstract: The concept of "design space" has been
proposed in the ICH Q8 guideline and is gaining momentum in
its application in the biotech industry. It has been defined
as "the multidimensional combination and interaction of
input variables (e.g., material attributes) and process
parameters that have been demonstrated to provide assurance
of quality." This paper presents a stepwise approach for
defining process design space for a biologic product. A case
study, involving P. pastoris fermentation, is presented to
facilitate this. First, risk analysis via Failure Modes and
Effects Analysis (FMEA) is performed to identify parameters
for process characterization. Second, small-scale models are
created and qualified prior to their use in these
experimental studies. Third, studies are designed using
Design of Experiments (DOE) in order for the data to be
amenable for use in defining the process design space.
Fourth, the studies are executed and the results analyzed
for decisions on the criticality of the parameters as well
as on establishing process design space. For the application
under consideration, it is shown that the fermentation unit
operation is very robust with a wide design space and no
critical operating parameters. The approach presented here
is not specific to the illustrated case study. It can be
extended to other biotech unit operations and processes that
can be scaled down and characterized at small scale. |
| ISSN: 8756-7938 |
| DOI: 10.1021/bp070338y |
| Record 32 of 83 |
| Author(s): Moffat, BG (Moffat, Brian G.);
Abraham, E (Abraham, Eitan); Desmulliez, MPY (Desmulliez,
Marc P. Y.); Koltsov, D (Koltsov, Dennis); Richardson, A
(Richardson, Andrew) |
| Title: Failure mechanisms of legacy aircraft
wiring and interconnects |
| Source: IEEE TRANSACTIONS ON DIELECTRICS AND
ELECTRICAL INSULATION, 15 (3): 808-822 JUN 2008 |
| Abstract: This paper presents a comprehensive
list of the causes and modes of failure and ageing in legacy
aircraft wiring and interconnects. Taxonomies of the
electrical, mechanical, chemical and thermal stresses that
contribute to the various stages of ageing and/or failure
are presented. A Failure Modes Effects and Analysis (FMEA)
is conducted to categorize the most serious failures. The
order of severity in the FMEA is backed up by maintenance
data gathered by the Royal Air Force (RAF) base Brize Norton
during routine inspection. |
| ISSN: 1070-9878 |
| Record 33 of 83 |
| Author(s): Douglass, MR (Douglass, Michael R.) |
| Editor(s): Hartzell, AL; Ramesham, R |
| Title: MEMS reliability - Coming of age - art.
no. 688402 |
| Source: RELIABILITY, PACKAGING, TESTING, AND
CHARACTERIZATION OF MEMS/MOEMS VII, 6884: 88402-88402 2008 |
| Book series title: PROCEEDINGS OF THE SOCIETY OF
PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) |
| Conference Title: Conference on Reliability,
Packaging, Testing, and Characterization of MEMS/MOEMS VII |
| Conference Date: JAN 21-22, 2008 |
| Conference Location: San Jose, CA |
| Abstract: In today's high-volume semiconductor
world, one could easily take reliability for granted. As the
MOEMS/MEMS industry continues to establish itself-as a
viable alternative to conventional manufacturing in the
macro world, reliability can be of high concern. Currently,
there are several emerging market opportunities in which
MOEMS/MEMS is gaining a foothold. Markets such as mobile
media, consumer electronics, biomedical devices, and
homeland security are all showing great interest in
microfabricated products. At the same time, these markets
are among the most demanding when it comes to reliability
assurance. To be successful, each company developing a
MOEMS/MEMS device must consider reliability on an equal
footing with cost, performance and manufacturability. What
can this maturing industry learn from the successful
development of DLP(R) technology, air bag accelerometers and
inkjet printheads? This paper discusses some basic
reliability principles which any MOEMS/MEMS device
development must use. Examples from the, commercially
successful and highly reliable Digital Micromirror Device
complement the discussion. |
| ISSN: 0277-786X |
| ISBN: 978-0-8194-7059-1 |
| Record 34 of 83 |
| Author(s): Ahnannai, B (Ahnannai, B.); Greenough,
R (Greenough, R.); Kay, J (Kay, J.) |
| Title: A decision support tool based on QFD and
FMEA for the selection of manufacturing automation
technologies |
| Source: ROBOTICS AND COMPUTER-INTEGRATED
MANUFACTURING, 24 (4): 501-507 AUG 2008 |
| Conference Title: 3rd International Conference on
Manufacturing Research |
| Conference Date: SEP 06-08, 2005 |
| Conference Location: Cranfield, ENGLAND |
| Conference Host: Cranfield Univ |
| Abstract: With the advent of the new challenge to
design a more lean and responsive computer-integrated
manufacturing system, firms have been striving to achieve a
coherent interaction between technology, organisation, and
people to meet this challenge. This paper describes an
integrated approach developed for supporting management in
addressing technology, organisation, and people at the
earliest stages of manufacturing automation decision-making.
The approach uses both the quality function deployment (QFD)
technique and the failure mode and effects analysis (FMEA)
technique. The principal concepts of both applications are
merged together to form a decision tool; QFD in its ability
to identify the most suitable manufacturing automation
alternative and FMEA in its ability to identify the
associated risk with that option to be addressed in the
manufacturing system design and implementation phases. In
addition, this paper presents the results of a practical
evaluation conducted in industry. (C) 2007 Elsevier Ltd. All
rights reserved. |
| ISSN: 0736-5845 |
| DOI: 10.1016/j.rcim.2007.07.002 |
| Record 35 of 83 |
| Author(s): Arvanitoyannis, IS (Arvanitoyannis,
Ioannis S.); Varzakas, TH (Varzakas, Theodoros H.) |
| Title: Application of ISO 22000 and failure mode
and effect analysis (FMEA) for industrial processing of
salmon: A case study |
| Source: CRITICAL REVIEWS IN FOOD SCIENCE AND
NUTRITION, 48 (5): 411-429 2008 |
Abstract: The Failure Mode and Effect Analysis
(FMEA) model was applied for risk assessment of salmon
manufacturing. A tentative approach of FMEA application to
the salmon industry was attempted in conjunction with ISO
22000.
Preliminary Hazard Analysis was used to analyze and predict
the occurring failure modes in a food chain system (salmon
processing plant), based on the functions, characteristics,
and/or interactions of the ingredients or the processes,
upon which the system depends. Critical Control points were
identified and implemented in the cause and effect diagram
(also known as Ishikawa, tree diagram and fishbone diagram).
In this work, a comparison of ISO 22000 analysis with HACCP
is carried out over salmon processing and packaging.
However, the main emphasis was put on the quantification of
risk assessment by determining the RPN per identified
processing hazard. Fish receiving, casing/marking, blood
removal, evisceration, filet-making cooling/freezing, and
distribution were the processes identified as the ones with
the highest RPN (252, 240, 210, 210, 210, 210, 200
respectively) and corrective actions were undertaken. After
the application of corrective actions, a second calculation
of RPN values was carried out resulting in substantially
lower values (below the upper acceptable limit of 130). It
is noteworthy that the application of Ishikawa (Cause and
Effect or Tree diagram) led to converging results thus
corroborating the validity of conclusions derived from risk
assessment and FMEA. Therefore, the incorporation of FMEA
analysis within the ISO 22000 system of a salmon processing
industry is anticipated to prove advantageous to
industrialists, state food inspectors, and consumers. |
| ISSN: 1040-8398 |
| DOI: 10.1080/10408390701424410 |
| Record 36 of 83 |
| Author(s): Nepal, BP (Nepal, Bimal P.); Yadav, OP
(Yadav, Om P.); Monplaisir, L (Monplaisir, Leslie); Murat, A
(Murat, Alper) |
| Title: A framework for capturing and analyzing
the failures due to system/component interactions |
| Source: QUALITY AND RELIABILITY ENGINEERING
INTERNATIONAL, 24 (3): 265-289 APR 2008 |
| Abstract: To keep up with the speed of
globalization and growing customer demands for more
technology-oriented products, modern systems are becoming
increasingly more complex. This complexity gives rise to
unpredictable failure patterns. While there are a number of
well-established failure analysis (physics-of-failure)
models for individual components, these models do not hold
good for complex systems as their failure behaviors may be
totally different. Failure analysis of individual components
does consider the environmental interactions but is unable
to capture the system interaction effects on failure
behavior. These models are based on the assumption of
independent failure mechanisms. Dependency relationships and
interactions of components in a complex system might give
rise to some new types of failures that are not considered
during the individual failure analysis of that component.
This paper presents a general framework for failure modes
and effects analysis (FMEA) to capture and analyze component
interaction failures. The advantage of the proposed
methodology is that it identifies and analyzes the system
failure modes due to the interaction between the components.
An example is presented to demonstrate the application of
the proposed framework for a specific product architecture
(PA) that captures interaction failures between different
modules. However, the proposed framework is generic and can
also be used in other types of PA. Copyright (C) 2007 John
Wiley & Sons, Ltd. |
| ISSN: 0748-8017 |
| DOI: 10.1002/qre.892 |
| Record 37 of 83 |
| Author(s): Goel, A (Goel, Anuj); Graves, RJ
(Graves, Robert J.) |
| Book Group Author(s): IEEE |
| Title: Using Failure Mode Effect Analysis to
increase electronic systems reliability |
| Source: 2007 30TH INTERNATIONAL SPRING SEMINAR ON
ELECTRONICS TECHNOLOGY: 128-133 2007 |
| Conference Title: 30th International Spring
Seminar on Electronics Technology |
| Conference Date: MAY 09-13, 2007 |
| Conference Location: Cluj Napoca, ROMANIA |
| Abstract: This paper focuses on improving the
reliability of electronic systems in the electronic
packaging/manufacturing industry using Failure Mode and
Effect Analysis (FMEA). The paper starts with the
introduction to reliability and the FMEA. It briefly
summarizes the research done in these areas, describes the
benefits and limitations of the FMEA, compares various FMEA
approaches, defines its scope, and offers suggestions for a
multidiscipline and multifunctional team. It presents a FA
EA form exclusively designed for the electronic systems
industry, and provides a list of failure modes that should
be considered while performing FMEA on electronic systems.
While anticipating every failure mode is not possible, it
formulates an extensive list of potential failure modes. |
| ISBN: 978-1-4244-1217-4 |
| Record 38 of 83 |
| Author(s): Huq, MS (Huq, M. Saiful); Fraass, BA
(Fraass, Benedick A.); Dunscombe, PB (Dunscombe, Peter B.);
Gibbons, JP (Gibbons, John P., Jr.); Ibbott, GS (Ibbott,
Geoffrey S.); Medin, PM (Medin, Paul M.); Mundt, A (Mundt,
Arno); Mutic, S (Mutic, Sassa); Palta, JR (Palta, Jatinder
R.); Thomadsen, BR (Thomadsen, Bruce R.); Williamson, JF
(Williamson, Jeffrey F.); Yorke, ED (Yorke, Ellen D.) |
| Title: A method for evaluating quality assurance
needs in radiation therapy |
| Source: INTERNATIONAL JOURNAL OF RADIATION
ONCOLOGY BIOLOGY PHYSICS, 71 (1): S170-S173 Suppl. S 2008 |
| Abstract: The increasing complexity of modern
radiation therapy planning and delivery techniques
challenges traditional prescriptive quality control and
quality assurance programs that ensure safety and
reliability of treatment planning and delivery systems under
all clinical scenarios. Until now quality management (QM)
guidelines published by concerned organizations (e.g.,
American Association of Physicists in Medicine [AAPM],
European Society for Therapeutic Radiology and Oncology
[ESTRO], International Atomic Energy Agency [IAEA]) have
focused on monitoring functional performance of radiotherapy
equipment by measurable parameters, with tolerances set at
strict but achievable values. In the modern environment,
however, the number and sophistication of possible tests and
measurements have increased dramatically. There is a need to
prioritize QM activities in a way that will strike a balance
between being reasonably achievable and optimally beneficial
to patients. A systematic understanding of possible errors
over the course of a radiation therapy treatment and the
potential clinical impact of each is needed to direct
limited resources in such a way to produce maximal benefit
to the quality of patient care. Task Group 100 of the AAPM
has taken a broad view of these issues and is developing a
framework for designing QM activities, and hence allocating
resources, based on estimates of clinical outcome, risk
assessment, and failure modes. The report will provide
guidelines on risk assessment approaches with emphasis on
failure mode and effect analysis (FMEA) and an achievable QM
program based on risk analysis. Examples of FMEA to
intensity-modulated radiation therapy and high-dose-rate
brachytherapy are presented. Recommendations on how to apply
this new approach to individual clinics and further research
and development will also be discussed. (c) 2008 Elsevier
Inc. |
| ISSN: 0360-3016 |
| DOI: 10.1016/j.ijrobp.2007.06.081 |
| Record 39 of 83 |
| Author(s): Rath, F (Rath, Frank) |
| Title: Tools for developing a quality management
program: Proactive tools (process mapping, value stream
mapping, fault tree analysis, and failure mode and effects
analysis) |
| Source: INTERNATIONAL JOURNAL OF RADIATION
ONCOLOGY BIOLOGY PHYSICS, 71 (1): S187-S190 Suppl. S 2008 |
| Abstract: This article examines the concepts of
quality management (QM) and quality assurance (QA), as well
as the current state of QM and QA practices in radiotherapy.
A systematic approach incorporating a series of industrial
engineering-based tools is proposed, which can be applied in
health care organizations proactively to improve process
outcomes, reduce risk and/or improve patient safety, improve
through-put, and reduce cost. This tool set includes process
mapping and process flowcharting, failure modes and effects
analysis (FMEA), value stream mapping, and fault tree
analysis (FTA). Many health care organizations do not have
experience in applying these tools and therefore do not
understand how and when to use them. As a result there are
many misconceptions about how to use these tools, and they
are often incorrectly applied. This article describes these
industrial engineering-based tools and also how to use them,
when they should be used (and not used), and the intended
purposes for their use. In addition the strengths and
weaknesses of each of these tools are described, and
examples are given to demonstrate the application of these
tools in health care settings. (c) 2008 Elsevier Inc. |
| ISSN: 0360-3016 |
| DOI: 10.1016/j.ijrobp.2007.07.2385 |
| Record 40 of 83 |
| Author(s): Tekinerdogan, B (Tekinerdogan, Bedir);
Scizer, H (Scizer, Hasan); Aksit, M (Aksit, Mehmet) |
| Title: Software architecture reliability analysis
using failure scenarios |
| Source: JOURNAL OF SYSTEMS AND SOFTWARE, 81 (4):
558-575 APR 2008 |
| Abstract: With the increasing size and complexity
of software in embedded systems, software has now become a
primary threat for the reliability. Several mature
conventional reliability engineering techniques exist in
literature but traditionally these have primarily addressed
failures in hardware components and usually assume the
availability of a running system. Software architecture
analysis methods aim to analyze the quality of
software-intensive system early at the software architecture
design level and before a system is implemented. We propose
a Software Architecture Reliability Analysis Approach
(SARAH) that benefits from mature reliability engineering
techniques and scenario-based software architecture analysis
to provide an early software reliability analysis at the
architecture design level. SARAH defines the notion of
failure scenario model that is based on the Failure Modes
and Effects Analysis method (FMEA) in the reliability
engineering domain. The failure scenario model is applied to
represent so-called failure scenarios that are utilized to
derive fault tree sets (FTS). Fault tree sets are utilized
to provide a severity analysis for the overall software
architecture and the individual architectural elements.
Despite conventional reliability analysis techniques which
prioritize failures based on criteria such as safety
concerns, in SARAH failure scenarios are prioritized based
on severity from the end-user perspective. SARAH results in
a failure analysis report that can be utilized to identify
architectural tactics for improving the reliability of the
software architecture. The approach is illustrated using an
industrial case for analyzing reliability of the software
architecture of the next release of a Digital TV. (c) 2007
Elsevier Inc. All rights reserved. |
| ISSN: 0164-1212 |
| DOI: 10.1016/j.jss.2007.10.029 |
| Record 41 of 83 |
| Author(s): Sharma, RK (Sharma, Rajiv Kumar);
Kumar, D (Kumar, Dinesh); Kumar, P (Kumar, Pradeep) |
| Title: Fuzzy modeling of system behavior for risk
and reliability analysis |
| Source: INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE,
39 (6): 563-581 2008 |
| Abstract: The main objective of the article is to
permit the reliability
analyst's/engineers/managers/practitioners to analyze the
failure behavior of a system in a more consistent and
logical manner. To this effect, the authors propose a
methodological and structured framework, which makes use of
both qualitative and quantitative techniques for risk and
reliability analysis of the system. The framework has been
applied to model and analyze a complex industrial system
from a paper mill. In the quantitative framework, after
developing the Petrinet model of the system, the fuzzy
synthesis of failure and repair data (using fuzzy arithmetic
operations) has been done. Various system parameters of
managerial importance such as repair time, failure rate,
mean time between failures, availability, and expected
number of failures are computed to quantify the behavior in
terms of fuzzy, crisp and defuzzified values. Further, to
improve upon the reliability and maintainability
characteristics of the system, in depth qualitative analysis
of systems is carried out using failure mode and effect
analysis (FMEA) by listing out all possible failure modes,
their causes and effect on system performance. To address
the limitations of traditional FMEA method based on risky
priority number score, a risk ranking approach based on
fuzzy and Grey relational analysis is proposed to prioritize
failure causes. |
| ISSN: 0020-7721 |
| DOI: 10.1080/00207720701717708 |
| Record 42 of 83 |
| Author(s): Karim, MA (Karim, M. A.); Smith, AJR
(Smith, A. J. R.); Halgamuge, S (Halgamuge, S.) |
| Title: Empirical relationships between some
manufacturing practices and performance |
| Source: INTERNATIONAL JOURNAL OF PRODUCTION
RESEARCH, 46 (13): 3583-3613 2008 |
| Abstract: Intense global competition, rapid
technological changes, advances in manufacturing and
information technology and discerning customers are forcing
manufacturers to adopt manufacturing practices and
competitive priorities that enable them to deliver high
quality products in a short period of time. Identifying
manufacturers' competitive priorities and effective
manufacturing practices has long been considered one of the
key elements in manufacturing strategy research. This paper
presents the results of a study conducted to identify some
of the effective manufacturing practices that have a
significant influence on manufacturing performance. This
study also identifies the main competitive objectives of
manufacturing industries that participated in the study. The
results reported in this paper are based on data collected
from a survey using a standard questionnaire administered to
1000 manufacturers in Australia. Evidence indicates that
product quality and reliability are the main competitive
factors for manufacturers and price has become surprisingly
a relatively less important factor. Results show that
simultaneous pursuit of advanced quality practices can
neutralize the potential negative impacts of manufacturing
difficulties and significantly improve product quality and
manufacturing performance. Failure mode and effect analysis
(FMEA) is shown to be an important tool for improving
product quality and on time delivery performance. FMEA
practice driven by the intention to improve customer
satisfaction is more effective than that practised to fulfil
customer requirements. Effective supplier relationships are
shown to contribute positively to the manufacturing
performance. The results also suggest that maintaining a
supplier rating system and product data management and
regularly updating them with field failure and warranty data
are important manufacturing practices. |
| ISSN: 0020-7543 |
| DOI: 10.1080/00207540601164201 |
| Record 43 of 83 |
| Author(s): Chin, KS (Chin, Kwai-Sang); Chan, A
(Chan, Allen); Yang, JB (Yang, Jian-Bo) |
| Title: Development of a fuzzy FMEA based product
design system |
| Source: INTERNATIONAL JOURNAL OF ADVANCED
MANUFACTURING TECHNOLOGY, 36 (7-8): 633-649 MAR 2008 |
| Abstract: The demand for high-quality and
low-cost products with short development time in the dynamic
global market has forced researchers and industries to focus
on various effective product development strategies. The
authors are carrying out research studies to explore the
applicability of fuzzy logic and knowledge-based systems
technologies to today's competitive product design and
development, with an emphasis on the design of high quality
products at the conceptual design stage. A framework of a
fuzzy FMEA (failure modes and rffects analysis) based
evaluation approach for new product concepts is proposed in
this paper. Based on the proposed approach and
methodologies, a prototype system named EPDS-1, which can
assist inexperienced users to perform FMEA analysis for
quality and reliability improvement, alternative design
evaluation, materials selection, and cost assessment, thus
helping to enhance robustness of new products at the
conceptual design stage. This paper presents the underlying
concepts of the development and shows the practical
application with the prototype system with a case study. |
| ISSN: 0268-3768 |
| DOI: 10.1007/s00170-006-0898-3 |
| Record 44 of 83 |
| Author(s): Xu, SZ (Xu, Shuzhen); Susemihl, EA
(Susemihl, Enrique A.) |
| Book Group Author(s): ASME |
| Title: Reliability analysis of water mist systems |
| Source: PROCEEDINGS OF THE ASME INTERNATIONAL
MECHANICAL ENGINEERING CONGRESS AND EXPOSITION 2007, VOL 14
- SAFETY ENGINEERING, RISK ANALYSIS, AND RELIABILITY METHODS
: 37-40 2008 |
| Conference Title: ASME International Mechanical
Engineering Congress and Exposition |
| Conference Date: NOV 11-15, 2007 |
| Conference Location: Seattle, WA |
Abstract: This paper presents some preliminary
results from a reliability study of water mist systems
conducted at FM Global. The study includes a detailed
Failure Modes and Effects Analysis (FMEA) to identify all
the major potential failure modes, which include demand,
quiescent and operational failures. Various fault trees are
thus constructed for the typical water mist system
configurations to evaluate the failure probabilities.
However, due to the short history of industrial application
of water mist systems, no specific reliability data are
available. Therefore, in the calculation of system failure
probability, the component failure data are obtained from
other applications.
The failure probabilities and the confidence bounds of the
typical water mist systems listed in the Standard 750 of the
National Fire Protection Association are compared in the
paper. The major failure modes identified through an
importance analysis are also presented. |
| ISBN: 978-0-7918-4308-6 |
| Record 45 of 83 |
| Author(s): Coles, GA (Coles, Garill A.) |
| Book Group Author(s): ASME |
| Title: Prospective system assessment used to
enhance patient safety case studies from a collbaoration of
enginners and hospitals in Southwest Washington State |
| Source: PROCEEDINGS OF THE ASME INTERNATIONAL
MECHANICAL ENGINEERING CONGRESS AND EXPOSITION 2007, VOL 14
- SAFETY ENGINEERING, RISK ANALYSIS, AND RELIABILITY METHODS
: 117-125 2008 |
| Conference Title: ASME International Mechanical
Engineering Congress and Exposition |
| Conference Date: NOV 11-15, 2007 |
| Conference Location: Seattle, WA |
Abstract: It is no secret that healthcare, in
general, has become art increasingly complicated mixture of
technical systems complex processes and intricate skilled
human interactions, Patient care processes have followed
this same trend. The healthcare Industry, itself. has
acknowledged that it is fraught with high-risk and error
prone processes and cite medication management systems.
invasive procedures and diagnostic methods. Complexity
represents opportunity for unanticipated events, process
failures and undesirabic outcomes.
Traditionally a patierit care process fails, accountability
was focused on the individual clinician error. However
increasing, healthcare is following the lead of other
high-risk industries (e.g, chemical, aerospace. nuclear,
etc.) that attention to the characteristics the overall
system that contribute to the failure. The focus has shifted
to identification of systematic weaknesses and
vulnerabilities. Increasing the healthcare industry is using
prospective system assessment methods to evaluate the
hi-h-risk systems and processes.
This paper describes results of collaboration between
engineers and community hospitals in Southwest Washington
State between 2002 and 2007, in applying prospective system
assessment methods to a range of the high-risk healthcare
systems and processes. The methods used are Failure Mode
Effects and Criticality Analysis and Probabilistic Risk
Assessment. The two case studies presented are: 1) an
hospital,hospital FMEA oil patient transfer and 2) a risk
assessment of mental health patients Who present themselves
in a hospital Emergency Department. |
| ISBN: 978-0-7918-4308-6 |
| Record 46 of 83 |
| Author(s): Talon, A (Talon, A.); Boissier, D
(Boissier, D.); Lair, J (Lair, J.) |
| Title: Service-life assessment of building
components: application of evidence theory |
| Source: CANADIAN JOURNAL OF CIVIL ENGINEERING, 35
(3): 287-300 MAR 2008 |
| Abstract: This paper deals with the assessment of
the service life of in-service building components subjected
to known environmental and usage conditions. This assessment
is complex because of two primary features. First, the
assessment has to be carried within a multiscale context: a
geometric scale that ranges from the material or elemental
to building scale; a range in the complexity of the
degradation (phenomena that varies from a single phenomenon
to the consideration of several degradation scenarios); a
range of possible performance requirements, from one
function to several; and consideration, as well, to the time
over which the process is carried out that may span from the
design stage to that of management and repair. Second, this
assessment must also take into consideration the
availability and features of service-life data that by
nature is heterogeneous, imprecise, uncertain, and
incomplete. In this context, a comprehensive methodology is
developed using all available data on service life derived
from existing methods of service-life assessment of
materials, elements or building components. Such data may,
for example, be extracted from fundamental studies on
durability, accelerated short-term exposure tests,
statistical methods, factorial methods, feedback from
practice, or expert opinion or other sources. The main
stages of this methodology are: (i) identification of all
possible degradation scenarios provided by failure mode and
effects analysis (FMEA); (ii) collection of all available
service-life data (SL-data) associated with these
degradation scenarios, transformation of this data into a
fuzzy-set format, and assessment of its quality; (iii)
processing of unification of data and aggregation of data;
and (iv) assessment of the service life of building
components. The case study of a window unit allows for: (i)
service-life assessment of a building component to be
processed by unification of data and aggregation of data and
(ii) a conclusion to be deduced. |
| ISSN: 0315-1468 |
| DOI: 10.1139/L07-109 |
| Record 47 of 83 |
| Author(s): Korayem, MH (Korayem, M. H.); Iravani,
A (Iravani, A.) |
| Title: Improvement of 3P and 6R mechanical robots
reliability and quality applying FMEA and QFD approaches |
| Source: ROBOTICS AND COMPUTER-INTEGRATED
MANUFACTURING, 24 (3): 472-487 JUN 2008 |
| Abstract: In the past few years, extending usage
of robotic systems has increased the importance of robot
reliability and quality. To improve the robot reliability
and quality by applying standard approaches such as Failure
Mode and Effect Analysis (FMEA) and Quality Function
Deployment (QFD) during the design of robot is necessary.
FMEA is a qualitative method which determines the critical
failure modes in robot design. In this method Risk Priority
Number is used to sort failures with respect to critical
situation. Two examples of mechanical robots are analyzed by
using this method and critical failure modes are determined
for each robot. Corrective actions are proposed for critical
items to modify robots reliability and reduce their risks.
Finally by using QFD, quality of these robots is improved
according to the customers' requirements. In this method by
making four matrixes, optimum values for all technical
parameters are determined and the final product has the
desired quality. (C) 2007 Elsevier Ltd. All rights reserved. |
| ISSN: 0736-5845 |
| DOI: 10.1016/j.rcim.2007.05.003 |
| Record 48 of 83 |
| Author(s): Gollomp, B (Gollomp, Bemie) |
| Title: Quality and reliability facilitator - FMEA |
| Source: IEEE INSTRUMENTATION & MEASUREMENT
MAGAZINE, 11 (2): 58-59 APR 2008 |
| ISSN: 1094-6969 |
| Record 49 of 83 |
| Author(s): Kitamura, Y (Kitamura, Yoshinobu);
Takafuji, S (Takafuji, Sunao); Mizoguchi, R (Mizoguchi,
Riichiro) |
| Book Group Author(s): ASME |
| Title: Towards a reference ontology for
functional knowledge interoperability |
| Source: PROCEEDINGS OF THE ASME INTERNATIONAL
DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND
INFORMATION IN ENGINEERING CONFERENCE 2007, VOL 6, PTS A AND
B: 111-120 2008 |
| Conference Title: ASME International Design
Engineering Technical Conferences/Computers and Information
in Engineering Conference |
| Conference Date: SEP 04-07, 2007 |
| Conference Location: Las Vegas, NV |
Abstract: Functionality is one of the key aspects
of artifact models for design. A function of a device,
however, can be captured in different ways in different
domains or by different model-authors. Much research on
functions has been conducted in the areas of engineering
design, functional representation and philosophy, although
there are several definitions and notions of functions. We
view conceptualization of function is multiplicative in
nature: different functions can be captured simultaneously
from an objective behavior of an artifact under different
teleological contexts of users/designers, or from different
viewpoints (perspectives) of a model-author. Such
differences become problematic for sharing functional
knowledge among engineers.
In this article, we attempt to clarify the differences of
such perspectives for capturing functions on the basis of
the ontological engineering. On the basis of a generalized
model of the standard input-output model in the well-known
systematic design methodology, we show descriptive
categorization of some upper-level types (classes) of
functions with references to some definitions of functions
in the literature.
Such upper-level ontological categories of functions are
intended to be used as a reference ontology for functional
knowledge interoperability. One of the two usages here is to
convert functional models between different functional
taxonomies. A functional term in a taxonomy is (ideally)
categorized into a generic type defined in the reference
ontology. It is widely recognized in the literature that
such an upper-level ontology helps automatic `mapping
discovery' which is to find similarities between two
ontologies and determine which concepts represent similar
notion. The reference ontology of function might have such
an effect. Another usage of the reference ontology is to
integrate fault knowledge into functional knowledge and
automatic transformation of FMEA sheets. The designer can
describe an integrated model of both functional knowledge
and fault knowledge. Based on ontology mappings, automatic
transformations of FMEA sheets can be realized.
In this article, we discuss the detail of the definitions of
the upper-level categories of functions ontologically. Then,
we give an overview of usages and effects of the upper-level
categories as a reference ontology for functional knowledge
interoperability. |
| ISBN: 978-0-7918-4807-4 |
| Record 50 of 83 |
| Author(s): Liu, Y (Liu, Yu); Huang, HZ (Huang,
Hong-Zhong); Miao, Q (Miao, Qiang); Zuo, MJ (Zuo, Ming J.) |
| Book Group Author(s): ASME |
| Title: Analysis and evaluation of reliability of
diesel engine based on maintenance records |
| Source: DETC2007: PROCEEDINGS OF THE ASME
INTERNATIONAL DESIGN ENGINEERING TECHNOLOGY CONFERENCE AND
COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, VOL 4:
451-456 2008 |
| Conference Title: ASME International Design
Engineering Technical Conferences/Computers and Information
in Engineering Conference |
| Conference Date: SEP 04-07, 2007 |
| Conference Location: Las Vegas, NV |
| Abstract: Evaluating reliability and finding the
critical components of a diesel engine system is a very
important process in quality improvement and new product
design. In this paper, a series of reliability indexes were
applied in diesel engine reliability evaluation based on
maintenance records. Several methods including life cycle
distribution and FMEA (Failure Mode and Effects Analysis)
were also presented. At the end, a diesel engine (Model
6108ZQ) was used as a case study. |
| ISBN: 978-0-7918-4805-0 |
| Record 51 of 83 |
| Author(s): Belter, KA (Belter, Kurt A.); Ishii, K
(Ishii, Kosuke (Kos)); Karandikar, H (Karandikar,
Harshavardhan (Harsh)) |
| Book Group Author(s): ASME |
| Title: Making design reviews count |
| Source: DETC2007: PROCEEDINGS OF THE ASME
INTERNATIONAL DESIGN ENGINEERING TECHNOLOGY CONFERENCE AND
COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, VOL 4:
969-979 2008 |
| Conference Title: ASME International Design
Engineering Technical Conferences/Computers and Information
in Engineering Conference |
| Conference Date: SEP 04-07, 2007 |
| Conference Location: Las Vegas, NV |
| Abstract: Design reviews are one of the most
established product-development project management
techniques to identify and eliminate errors in product
design before they physically manifest themselves either in
a prototype or in the final product. Design reviews are
typically embedded within an overall product-development
project management process consisting of multiple stages
separated by decision gates. The specific goal, structure
and content of a design review depend upon the stage and
time at which it is performed. In the process of working
with a number of large companies on their technology and
product development processes we observed that the actual
practice of design reviews often falls well short of the
companies' own stated objectives. We examine the reasons for
this in our paper, the chief among them being the often
misleading application and lack of clarity and brevity in
the review process. These problems can be clearly
highlighted and rectified by the application of the CVCA and
FMEA tools to the design review process itself. Thus, design
reviews can be made more efficient and effective and made to
count! |
| ISBN: 978-0-7918-4805-0 |
| Record 52 of 83 |
| Author(s): Mariani, R (Mariani, Riccardo);
Boschi, G (Boschi, Gabriele); Colucci, F (Colucci, Federico) |
| Book Group Author(s): IEEE |
| Title: Using an innovative SoC-level FMEA
methodology to design in compliance with IEC61508 |
| Source: 2007 DESIGN, AUTOMATION & TEST IN EUROPE
CONFERENCE & EXHIBITION, VOLS 1-3: 492-497 2007 |
| Book series title: Design, Automation and Test in
Europe Conference and Expo |
| Conference Title: Design, Automation and Test in
Europe Conference and Exhibition |
| Conference Date: APR 16-20, 2007 |
| Conference Location: Nice, FRANCE |
| Abstract: This paper proposes an innovative
methodology, to perform and validate a Failure Mode and
Effects Analysis (FMEA) at System-on-Chip (SoC) level. This
is done in compliance with the IEC 61508, an international
norm for the functional safety of electronic safety-related
systems, of which an overview is given in the paper. The
Methodology is based on a theory to decompose a digital
circuit in "sensible zones" and a tool that automatically
extracts these sensible zones from the RTL description. it
includes as well a spreadsheet to compute the metrics
required by the IEC norm such Diagnostic Coverage and Safe
Failure Fraction. The FMEA results are validated by using
another tool suite including a fault injection environment.
The paper explains how to take benefits of the information
provided by such approach and as example it is described how
the methodology has been applied to design memory
sub-systems to be used in fault robust microcontrollers for
automotive applications. This methodology has been approved
by TUV-SUD as the flow to assess and validate the Safe
Failure Fraction of a given SoC in adherence to IEC 61508. |
| ISSN: 1530-1591 |
| ISBN: 978-3-9810801-2-4 |
| Record 53 of 83 |
| Author(s): Xu, JG (Xu, Jinghai); Hu, N (Hu,
Ning); Chen, Z (Chen, Zhen) |
| Editor(s): Batra, RC; Qian, LF; Li, XN; Zhou, KD;
Dresig, H; Morita, Y; Cheung, E |
| Title: Reliability analysis for automatic
transmission based on AMESim |
| Source: PROCEEDINGS OF THE INTERNATIONAL
CONFERENCE ON MECHANICAL ENGINEERING AND MECHANICS 2007,
VOLS 1 AND 2: 1957-1962 2007 |
| Conference Title: International Conference on
Mechanical Engineering and Mechanics |
| Conference Date: NOV 05-07, 2007 |
| Conference Location: Wuxi, PEOPLES R CHINA |
| Abstract: This paper presents a qualitative
simulation method on reliability analysis, considering that
hydraulic control system of automatic transmission (AT) has
a complex structure and its failure modes are various,
unpredictable and occur randomly. First, by using AMESim,
simulation models of hydraulic control systems and planetary
gear sets, which worked together in GM 4T65E transmission,
are set up. Then failure states of adjustable-displacement
oil pump return spring and the No.4 shuttle valve are
simulated individually. To cause failure of the
adjustable-displacement oil pump return spring, its
coefficient of rigidity is set to an infinitesimally
positive number. Comparing simulation results of the failed
component state with those of normal state, it can be
learned that the failed return spring causes the output oil
pressure of supply pressure regulation and flow control
subsystem to become lower than system requirements.
Therefore, AT does not have normal working oil pressure. It
causes the shifting actuator to slip. Furthermore,
sufficient power can not be produced to enable car to pull
away from the curb. Similarly, to cause failure of the No.4
shuttle valve, its coefficient of flow is set to naught.
Comparing the simulation results, it can be learned that the
failed shuttle valve causes loss of third-gear engagement
with the selector in D (Drive) or O/D (Overdrive) position
and the engine's braking function with the transmission in
first gear (manual low gear). Finally, relationship between
failed components and AT's problem is established. After
analysis, it can be learned that dynamic simulation using
AMESim not only remedies the defect in steady-state
simulation, but also opens up an avenue to 'Failure Mode and
Effect Analysis' of AT. This becomes the foundation for
trouble-shooting overall AT system. The simulation example
demonstrates the efficiency of the presented method. |
| Record 54 of 83 |
| Author(s): Chennagiri, G (Chennagiri, Gurudutt);
Iyer, S (Iyer, Satyanarayan) |
| Book Group Author(s): ASME |
| Title: New product introduction of fully buffered
DIMM - A process perspective |
| Source: IPACK 2007: PROCEEDINGS OF THE ASME
INTERPACK CONFERENCE 2007, VOL 1: 917-922 2007 |
| Conference Title: ASME InterPACK Conference |
| Conference Date: JUL 08-12, 2007 |
| Conference Location: Vancouver, CANADA |
Abstract: The introduction of new products to the
manufacturing environment is a challenging task. The extent
of this challenge varies depending on the complexity of the
product being introduced. Fully Buffered Dual In-line Memory
Modules (FBDIMMs). which have been it recent introduction to
file memory? industry, pose several unique challenges that
need to be addressed, The objective of this study was to
first comprehend file distinguishing features of this
product against a generic memory module front an assembly
process perspective and address the associated issues
Failure Modes and Effects Analysis (FMEA) was conducted to
highlight (lie areas of concern from a process and
reliability stand point, Processes were developed to
mitigate [lie occurrence and severity, rate or the
identified failure modes. The assembly of heat sinks oil
these modules is a unique aspect and required special tools
and fixtures. Various issues that were critical to quality
were encountered while assembling the heat sinks, Centering
of heat sinks over the module after assembly was also
observed to be critical. Misaligned heat sinks Call obstruct
the insertion of modules into test and application sockets,
A special tool was designed to address this issued Upon
installation of the new tool. a capability study was
performed to validate the process. Removal of the heat sink
for component rework purposes was also a concern. This was
mainly due to the adhesion of the Thermal Interface Material
(TIM) material used oil the heat sink with the components on
the board. The adhesion led to component separation front
the board during the removal process and required it special
process to miligate this issue. The methods used to address
these issues ire reported, The product reliability was
validated using thermal cycling. shock and vibration tests.
The results of these tests are also reported in the paper. |
| ISBN: 978-0-7918-4277-5 |
| Record 55 of 83 |
| Author(s): Lough, KG (Lough, Katie Grantham) |
| Book Group Author(s): ASME |
| Title: Detailed risk analysis for failure
prevention in conceptual design: Red (risk in early design)
based probabilistic risk assessments |
| Source: 19TH INTERNATIONAL CONFERENCE ON DESIGN
THEORY AND METHODOLOGY/1ST INTERNATIONAL CONFERENCE ON MICRO
AND NANO SYSTEMS, VOL 3, PART A AND B: 385-394 2008 |
| Conference Title: ASME International Design
Engineering Technical Conferences/Computers and Information
in Engineering Conference |
| Conference Date: SEP 04-07, 2007 |
| Conference Location: Las Vegas, NV |
| Abstract: Avoiding product recalls and failures
is a must for companies to remain successful in the consumer
product industry. Large numbers of failed products result in
significant profit losses do to repair or replacement costs
as well as untraceable costs of reputation damage among
customer bases. Probabilistic risk assessment (PRA) is key
to preventing product failures. When risks are adequately
identified and assessed the potential product failures can
be mitigated and save lives as well as company profit. Risk
mitigation is more effective the earlier it can be applied
in the design process; therefore, the identification and
assessment of risk through PRA techniques is most beneficial
to the company when employed early in the design process.
This paper presents new techniques for performing four
common PRAs, preliminary hazards analysis (PHA), failure
mode and effect analysis (FMEA), fault tree analysis (FTA),
and event tree analysis (ETA), during the conceptual phase
of design, when products have yet to assume a physical form.
The backbone for the application of these PRA techniques
during the conceptual design phase is the Risk in Early
Design (RED) Method. RED generates a listing of potential
product risk based on historical failure occurrences. These
risks are categorized by function, which enables this
preliminary risk assessment to be performed during
conceptual design. A risk analysis is performed for a
bicycle that demonstrates the powerful failure prevention
ability of RED and PRA during conceptual product design with
a Consumer Product Safety Commission recall. |
| ISBN: 978-0-7918-4804-3 |
| Record 56 of 83 |
| Author(s): Cudney, E (Cudney, Elizabeth); Drain,
D (Drain, David); Lough, KG (Lough, Katie Grantham) |
| Editor(s): Savoie, M; Aguilar, J; Chu, HW; Zinn,
CD; Mura, G; Andina, D |
| Title: Development to high-volume manufacturing:
Reducing the risks |
| Source: CITSA 2007/CCCT 2007: INTERNATIONAL
CONFERENCE ON CYBERNETICS AND INFORMATION TECHNOLOGIES,
SYSTEMS AND APPLICATIONS : INTERNATIONAL CONFERENCE ON
COMPUTING, COMMUNICATIONS AND CONTROL TECHNOLOGIES, VOL III,
POST-CONFERENCE ISSUE, PROCEEDINGS: 128-133 2007 |
| Conference Title: 4th International Conference on
Cybernetics and Information Technologies, Systems and
Applications/5th Int Conf on Computing, Communications and
Control Technologies |
| Conference Date: JUL 12-15, 2007 |
| Conference Location: Orlando, FL |
| Abstract: Process problems that are detected
during the development process can be corrected relatively
inexpensively. However, process problems that are
transferred to manufacturing for high-volume production can
be extremely expensive to correct. Failure Modes and Effect
Analysis is a tool which identifies potential failure modes,
the effect(s) of the failure mode, and quantifies risks.
FMEA has not achieved its potential as a fisk-management
tool in many industries. This paper discusses common errors
in performing Failure Modes and Effects Analysis as well as
techniques for improving its use by integrating commonly
available statistical methods. |
| ISBN: 978-1-934272-24-4 |
| Record 57 of 83 |
| Author(s): Hu, Y (Hu, Yida); Podder, T (Podder,
Tarun); Buzurovic, I (Buzurovic, Ivan); Yan, K (Yan,
Kaiguo); Ng, WS (Ng, Wan Sing); Yu, Y (Yu, Yan) |
| Book Group Author(s): IEEE |
| Title: Hazard analysis of EUCLIDIAN: An
image-guided robotic brachytherapy system |
| Source: 2007 ANNUAL INTERNATIONAL CONFERENCE OF
THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS
1-16: 1249-1252 2007 |
| Book series title: PROCEEDINGS OF ANNUAL
INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE
AND BIOLOGY SOCIETY |
| Conference Title: 29th Annual International
Conference of the
IEEE-Engineering-in-Medicine-and-Biology-Society |
| Conference Date: AUG 22-26, 2007 |
| Conference Location: Lyon, FRANCE |
| Abstract: Robotic assistance can help clinicians
to improve the flexibility of needle insertion and accuracy
of seed deposition. However, the robotic platform is a
safety critical system for its automated operational mode.
Thus, it is important to perform Hazard Identification &
Safety Insurance Control (HISIC) for securing the safety of
a medical robotic system. In this paper, we have performed
HISIC for our robotic platform, called Endo-Uro Computer
Lattice for Intratumoral Delivery, Implementation, and
Ablation with Nanosensing (ECLIDIAN) The definition and
requirements of the system are described by Unified Modeling
Language (UML). Failure Mode and Effect Analysis (FMEA) are
executed for the principles of HISIC, such as hazard
identification, safety insurance control, safety critical
limit, monitoring and control. FMEA combined with UML can
also be implemented to ensure reliability of the human
operation. On the basis of safety control index and fuzzy
mathematics, safety effective value is outlined to assess
the validity of safety insurance control for robotic system.
The above principles and methods are feasible and effective
for hazard analysis during the development of the robotic
system. |
| ISSN: 1094-687X |
| ISBN: 978-1-4244-0787-3 |
| Record 58 of 83 |
| Author(s): Thivel, PX (Thivel, P. -X); Bultel, Y
(Bultel, Y.); Delpech, F (Delpech, F.) |
| Title: Risk analysis of a biomass combustion
process using MOSAR and FMEA methods |
| Source: JOURNAL OF HAZARDOUS MATERIALS, 151 (1):
221-231 FEB 28 2008 |
| Abstract: Thermal and chemical conversion
processes that convert in energy the sewage sludge, pasty
waste and other pre-processed waste are increasingly common,
for economic and ecological reasons. Fluidized bed
combustion is currently one of the most promising methods of
energy conversion, since it bums biomass very efficiently,
and produces only very small quantities of sulphur and
nitrogen oxides. The hazards associated with biomass
combustion processes are fire, explosion and poisoning from
the combustion gases (CO, etc.). The risk analysis presented
in this paper uses the MADS-MOSAR methodology, applied to a
semi-industrial pilot scheme comprising a fluidization
column, a conventional cyclone, two natural gas burners and
a continuous supply of biomass. The methodology uses a
generic approach, with an initial macroscopic stage where
hazard sources are identified, scenarios for undesired
events are recognized and ranked using a grid of Severity x
Probability and safety barriers suggested. A microscopic
stage then analyzes in detail the major risks identified
during the first stage. This analysis may use various
different tools, such as HAZOP, FMEA, etc.: our analysis is
based on FMEA. Using MOSAR, we were able to identify five
subsystems: the reactor (fluidized bed and centrifuge), the
fuel and biomass supply lines, the operator and the
environment. When we drew up scenarios based on these
subsystems, we found that malfunction of the gas supply
burners was a common trigger in many scenarios. Our
subsequent microscopic analysis, therefore, focused on the
burners, looking at the ways they failed, and at the effects
and criticality of those failures (FMEA). We were, thus,
able to identify a number of critical factors such as the
incoming gas lines and the ignition electrode. (c) 2007
Elsevier B.V. All rights reserved. |
| ISSN: 0304-3894 |
| DOI: 10.1016/j.jhazmat.2007.05.072 |
| Record 59 of 83 |
| Author(s): Su, CT (Su, Chao-Ton); Chou, CJ (Chou,
Chia-Jen) |
| Title: A systematic methodology for the creation
of Six Sigma projects: A case study of semiconductor foundry |
| Source: EXPERT SYSTEMS WITH APPLICATIONS, 34 (4):
2693-2703 MAY 4 2008 |
| Abstract: Nowadays, Six Sigma has been widely
adopted in a variety of industries in the world and it has
become one of the most important subjects of debate in
quality management. Six Sigma is a well-structured
methodology that can help a company achieve expected goal
through continuous project improvement. Some challenges,
however, have emerged with the execution of the Six Sigma.
For examples, how are feasible projects generated? How are
critical Six Sigma projects selected given the finite
resources of the organization? This study aims to develop a
novel approach to create critical Six Sigma projects and
identify the priority of these projects. Firstly, the
projects are created from two aspects, namely,
organization's business strategic policies and voice of
customer. Secondly, an analytic hierarchy process (AHP)
model is implemented to evaluate the benefits of each
project and; a hierarchical failure mode effects analysis
(FMEA) is also developed to evaluate the risk of each
project; and from which the priority of Six Sigma projects
can be determined. Finally, based on the project benefits
and risk, projects can be defined as Green Belt, Black Belt,
or others types of projects. An empirical case study of
semiconductor foundry will be utilized to explore the
effectiveness of our proposed approach. (c) 2007 Elsevier
Ltd. All rights reserved. |
| ISSN: 0957-4174 |
| DOI: 10.1016/j.eswa.2007.05.014 |
| Record 60 of 83 |
| Author(s): Sturek, J (Sturek, J.); Ramakrishnan,
S (Ramakrishnan, S.); Nagula, P (Nagula, P.); Srihari, K
(Srihari, K.) |
| Editor(s): Cardoso, J; Cordeiro, J; Filipe, J |
| Title: A decision support system for predicting
the reliability of a robotic dispensing system |
| Source: ICEIS 2007: PROCEEDINGS OF THE NINTH
INTERNATIONAL CONFERENCE ON ENTERPRISE INFORMATION SYSTEMS -
ARTIFICIAL INTELLIGENCE AND DECISION SUPPORT SYSTEMS :
289-296 2007 |
| Conference Title: 9th International Conference on
Enterprise Information Systems (ICEIS 2007) |
| Conference Date: JUN 12-16, 2007 |
| Conference Location: Funchal, PORTUGAL |
| Abstract: Decision Support Systems (DSS) are
information systems designed to support individual and
collective decision-making. This research presents the
development of a DSS to facilitate the prediction of the
reliability of a Robotic Dispensing System (RDS). While it
is extremely critical for design teams to identify the
potential defects in the product before releasing them to
the customers, predicting reliability is extremely difficult
due to the absence of actual failure data. Design teams
often adopt tools such as Failure Mode Effects and Analysis
(FMEA) to analyze the various failure modes in the product.
There are commercial softwares that facilitate predicting
reliability and conducting FMEA. However, there are limited
approaches that combine these two critical aspects of
product design. The objective of this research is to develop
a DSS that would help design teams track the overall system
reliability, while concurrently using the data from the
alpha testing phase to perform the FMEA. Hence, this DSS is
capable of calculating the age-specific reliability value
for a Robotic Dispensing System (RDS), in addition to
storing the defect information, for the FMEA process. The
Risk Priority Number (RPN) calculated using the data
gathered serves as the basis for the design team to identify
the modifications to the product design. The tool, developed
in Microsoft Access(R), would be subsequently utilized to
track on-field performance of the RDS. This would facilitate
continuous monitoring of the RDS from the customer site,
especially during its "infant mortality" period. |
| ISBN: 978-972-8865-89-4 |
| Record 61 of 83 |
| Author(s): Yuan, CM (Yuan Changming) |
| Editor(s): Wang, C; Guo, WJ; Cheng, JL |
| Title: Research on safety evaluation method for
underground metal mines |
| Source: MINE HAZARDS PREVENTION AND CONTROL
TECHNOLOGY: 465-469 2007 |
| Conference Title: International Conference on
Mine Hazards Prevention and Control |
| Conference Date: OCT 17, 2007 |
| Conference Location: Qingdao, PEOPLES R CHINA |
| Abstract: In this paper, a four-stage safety
evaluation method, SCL-FMEA, FTA, ETA -Risk
Evaluation.Synthesis Safety Management, has been put
forward, through a vast of amount of investigations and
analyses to the mining processes and the safety condition in
the underground metal mines in china. The four-stage safety
evaluation method is mainly used for the evaluation of the
major processes and auxiliary facilities and synthesis
safety management in underground metal mines, on the basis
of the traditional Safety Check List (SCL). According to the
actual conditions of the mining equipment and working post,
the Fault Model Effect Analysis method has been adopted and
the Fault Tree Analysis/Event Tree Analysis have been used
for the major accident types in the mines. To calculate the
risk rate, the-risk evaluation is carried out in accordance
with the statistics and standard of the nation. At the same
time, the partition, of, evaluation unit, SCL' check item
and rule, FMEA' contents, FTA and ETA' objects, Risk rate
account and evaluation rule, etc are established. The roles
and prospects of the safety evaluation and the, problems
required to be explained in underground metal mines are
simply showed. |
| ISBN: 978-7-03-019006-2 |
| Record 62 of 83 |
| Author(s): Li, G (Li, Guo); Gao, JM (Gao,
Jianmin); Chen, FM (Chen, Fumin) |
| Book Group Author(s): IEEE |
| Title: Formal support for failure knowledge
modeling and diagnostic reasoning using polychromatic sets |
| Source: 2007 5TH IEEE INTERNATIONAL CONFERENCE ON
INDUSTRIAL INFORMATICS, VOLS 1-3: 645-650 2007 |
| Book series title: IEEE International Conference
on Industrial Informatics (INDIN) |
| Conference Title: 5th IEEE International
Conference on Industrial Informatics |
| Conference Date: JUN 23-27, 2007 |
| Conference Location: Vienna, AUSTRIA |
| Abstract: Failure modes and effects analysis
(FMEA) is a traditional safety analysis method that has a
worldwide recognition across many industries. However, there
are documented limitations to the technique, which make it
difficult for direct conversion to the diagnosis models.
This paper aims to contribute to the reuse of FMEA knowledge
through a novel knowledge modeling approach. Taking the
structure model into consideration, we define the failure
modes as the inherent component properties at different
hierarchical levels and propose a formal failure knowledge
representation model based on the polychromatic sets theory.
It is a structured modeling technique for representing FMEA
causal knowledge in unified mathematical language, which in
turn provides the framework for organizing the failure
modes, the causes and effects more systematically and
completely. Using the iterative search process operated on
the reasoning matrices, the diagnosis reasoning for more
than one top-level failure event can be realized
automatically. The research shows this new approach has
formed mathematical foundation which can make significant
progress in FNMA knowledge formalization. |
| ISSN: 1935-4576 |
| ISBN: 978-1-4244-0850-4 |
| Record 63 of 83 |
| Author(s): Seiwert, B (Seiwert, Bettina); Hayen,
H (Hayen, Heiko); Karst, U (Karst, Uwe) |
| Title: Differential labeling of free and
disulfide-bound thiol functions in proteins |
| Source: JOURNAL OF THE AMERICAN SOCIETY FOR MASS
SPECTROMETRY, 19 (1): 1-7 JAN 2008 |
| Abstract: A method for the simultaneous
determination of the number of free cysteine groups and
disulfide-bound cysteine groups in proteins has been
developed based on the sequential labeling of free and bound
thiol functionalities with two ferrocene-based maleimide
reagents. Liquid chromatography/electrochemistry/mass
spectrometry was used to assign the
N-(2-ferroceneethyl)maleimide (FEM) labeled free cysteine
functionalities in a tryptic digest mixture, whereas a
precursor ion scan enables the detection of peptides with
ferrocenecarboxylic acid-(2-maleimidoyl)ethylamide (FMEA)
labeled disulfide-bound cysteine groups after reduction.
Fragment spectra of the labeled peptides yield an excellent
coverage of b-type and y-type ions. The ferrocene labeled
cysteines were fragmented as 412 Da (FEM) and 455 Da (FMEA).
These fragment masses are significantly higher than
unlabeled amino acids or dipeptides and are easily detected.
The position of free and disulfide-bound cysteine may
therefore be assigned in an amino acid sequence. |
| ISSN: 1044-0305 |
| DOI: 10.1016/j.jasms.2007.10.001 |
| Record 64 of 83 |
| Author(s): Cheng, ZH (Cheng, Zhonghua); Wu, S
(Wu, Su); Wang, JZ (Wang, Jianzhao); Zhang, ZW (Zhang,
Zhanwu); Bian, JL (Bian, Jinlu); Gao, Q (Gao, Qi) |
| Editor(s): Aven, T; Vinnem, JE |
| Title: The maintenance model for the items with
compound failure modes |
| Source: RISK, RELIABILITY AND SOCIETAL SAFETY,
VOLS 1-3 - VOL 1: SPECIALISATION TOPICS; VOL 2: THEMATIC
TOPICS; VOL 3: APPLICATIONS TOPICS : 1115-1119 2007 |
| Book series title: Proceedings and Monographs in
Engineering, Water and Earth Sciences |
| Conference Title: European Safety and Reliability
Conference (ESREL 2007) |
| Conference Date: JUN 25-27, 2007 |
| Conference Location: Stavanger, NORWAY |
| Conference Host: Univ Stavanger |
| Abstract: Based on failure mode effect analysis
(FMEA) of hydraulic system of a certain production plant,
this paper finds that main cause of hydraulic system failure
is failure mode of wearing and cracking of counter-recoil
rod. According to failure mode of wearing, states of
counter-recoil rod may be identified as three kinds: normal,
potential failure and function failure. According to failure
mode of cracking, states of counter-recoil rod may be
identified as two kinds: normal and function failure. Under
maintenance cost and failure risk are both considered, how
to get optimal inspection interval for the counter-recoil
rod has become an imperative issue for operators and
managements of plant. The paper, by abstracting the
practical problems and applying stochastic process methods,
develops maintenance model (cost model and failure risk
model) for the items with compound failure modes to
calculate the risks and costs associated with an inspection
strategy. At the same time, procedure and methods for
modeling are also presented. Finally, by way of numerical
example, the relations between maintenance cost and failure
risk of the item are discussed, and optimal inspection
interval is determined. According to the optimal inspection
interval, failure risk of item can be controlled and
maintenance cost can be saved. The model and method in this
paper may be directly applied to solving homologous
problems. |
| ISBN: 978-0-415-44786-7 |
| Record 65 of 83 |
| Author(s): Compare, M (Compare, M.); Gigante, G
(Gigante, G.); Travascio, L (Travascio, L.); Vozella, A
(Vozella, A.) |
| Editor(s): Aven, T; Vinnem, JE |
| Title: Monte Carlo method and risk assessment |
| Source: RISK, RELIABILITY AND SOCIETAL SAFETY,
VOLS 1-3 - VOL 1: SPECIALISATION TOPICS; VOL 2: THEMATIC
TOPICS; VOL 3: APPLICATIONS TOPICS : 1153-1158 2007 |
| Book series title: Proceedings and Monographs in
Engineering, Water and Earth Sciences |
| Conference Title: European Safety and Reliability
Conference (ESREL 2007) |
| Conference Date: JUN 25-27, 2007 |
| Conference Location: Stavanger, NORWAY |
| Conference Host: Univ Stavanger |
| Abstract: The Monte Carlo method is widely used
in the evaluation of complex system reliability and safety.
This paper presents its implementation for the risk
assessment of a stratospheric balloon mission. The results
obtained by the simulation method have been compared with
those obtained using the classical approaches (FTA, FMEA,
ETA) highly recommended by standards. Some interesting
conclusions could be derived. |
| ISBN: 978-0-415-44786-7 |
| Record 66 of 83 |
| Author(s): Lebecki, K (Lebecki, K.); Rosmus, P
(Rosmus, P.) |
| Editor(s): Aven, T; Vinnem, JE |
| Title: Quantitative risk assessment of natural
hazards in mining based on the EN61508 methodology |
| Source: RISK, RELIABILITY AND SOCIETAL SAFETY,
VOLS 1-3 - VOL 1: SPECIALISATION TOPICS; VOL 2: THEMATIC
TOPICS; VOL 3: APPLICATIONS TOPICS : 1231-1236 2007 |
| Book series title: Proceedings and Monographs in
Engineering, Water and Earth Sciences |
| Conference Title: European Safety and Reliability
Conference (ESREL 2007) |
| Conference Date: JUN 25-27, 2007 |
| Conference Location: Stavanger, NORWAY |
| Conference Host: Univ Stavanger |
Abstract: Risk assessment when done properly
during the planning stage for a production process is the
deciding factor influencing work safety. In underground
mining practice the level of tolerable risk for a given
process is determined solely by confirming that safety
regulations requirements are met. However, it does not mean
that safety level for a given process is the highest
possible. To achieve this goal clear risk assessment
criteria are needed.
This paper describes the new approach to quantitative risk
assessment based on the EN 61508 methodology and also the
concept of functional safety. For methane and/or coal dust
explosion hazards the scenarios of the event are given in
the form of a bow-tic tree. Analytical methods of FTA and
ETA are used to assess the risk level. The tolerable risk
threshold is calculated according to ALARP methodology,
using the analytical methods of hazard identification -
HAZOP and FMEA. Quantitatively expressed risk levels are
calculated by the bow-tie tree method which specifies the
confidence level for the given protection layer. |
| ISBN: 978-0-415-44786-7 |
| Record 67 of 83 |
| Author(s): Pickard, K (Pickard, K.); Leopold, T
(Leopold, T.); Dieter, A (Dieter, A.); Bertsche, B
(Bertsche, B.) |
| Editor(s): Aven, T; Vinnem, JE |
| Title: Validation of similar systems based on
FMEA assessment |
| Source: RISK, RELIABILITY AND SOCIETAL SAFETY,
VOLS 1-3 - VOL 1: SPECIALISATION TOPICS; VOL 2: THEMATIC
TOPICS; VOL 3: APPLICATIONS TOPICS : 1859-1863 2007 |
| Book series title: Proceedings and Monographs in
Engineering, Water and Earth Sciences |
| Conference Title: European Safety and Reliability
Conference (ESREL 2007) |
| Conference Date: JUN 25-27, 2007 |
| Conference Location: Stavanger, NORWAY |
| Conference Host: Univ Stavanger |
| Abstract: In today's developments it is important
to know the future failure behaviour of the products as soon
as possible. In many cases this kind of prediction is not
possible and therefore there is a need for at least a
qualitative option for a concept comparison, based on which
an estimation in regards to the potential failure behaviour
or ratio the newly developed product has to the former one.
Therefore, a new approach will be shown with which such a
consideration will be enabled. This comparison procedure
will use already existing data and, although the method is
based on FMEA assessment values, the new approach will not
use the classic RPN classification, because these
classifications cannot be used for such kind of predictions
or considerations. For the improvement of its usage, the
integration of a so called confidence level will be shown.
The procedure and the generation of the confidence level,
and in particular the two possible options will be shown
with an example and discussed in detail. |
| ISBN: 978-0-415-44786-7 |
| Record 68 of 83 |
| Author(s): Ricco, R (Ricco, R.); Pickard, K
(Pickard, K.); Bertsche, B (Bertsche, B.) |
| Editor(s): Aven, T; Vinnem, JE |
| Title: The nature of product liability and risk
management methods |
| Source: RISK, RELIABILITY AND SOCIETAL SAFETY,
VOLS 1-3 - VOL 1: SPECIALISATION TOPICS; VOL 2: THEMATIC
TOPICS; VOL 3: APPLICATIONS TOPICS : 2025-2032 2007 |
| Book series title: Proceedings and Monographs in
Engineering, Water and Earth Sciences |
| Conference Title: European Safety and Reliability
Conference (ESREL 2007) |
| Conference Date: JUN 25-27, 2007 |
| Conference Location: Stavanger, NORWAY |
| Conference Host: Univ Stavanger |
| Abstract: Product Liability is a broad and very
complex issue and we are going to try to give an easy
explanation of the basic aspects of the matter. As in recent
times safety and reliability of products have become a
specific requirements to be satisfied by producers in order
to be exempted from liability related to damages triggered
by the use of the products, it is truly important for the
same producers as well as for users to be acknowledged of
the central problems of the allotment of liability in case
of accidents. The basic legal aspects of product liability
are the object of this paper. To illustrate the possible
influence of qualitative risk prevention on the product
liability, the FMEA, the most common qualitative and
preventive method, is chosen. |
| ISBN: 978-0-415-44786-7 |
| Record 69 of 83 |
| Author(s): Calori, IC (Calori, I. Canova);
Stalhane, T (Stalhane, T.) |
| Editor(s): Aven, T; Vinnem, JE |
| Title: FMEA and BBN for robustness analysis in
web-based applications |
| Source: RISK, RELIABILITY AND SOCIETAL SAFETY,
VOLS 1-3 - VOL 1: SPECIALISATION TOPICS; VOL 2: THEMATIC
TOPICS; VOL 3: APPLICATIONS TOPICS : 2341-2347 2007 |
| Book series title: Proceedings and Monographs in
Engineering, Water and Earth Sciences |
| Conference Title: European Safety and Reliability
Conference (ESREL 2007) |
| Conference Date: JUN 25-27, 2007 |
| Conference Location: Stavanger, NORWAY |
| Conference Host: Univ Stavanger |
| Abstract: In this paper we present a general
framework for conducting robustness analysis early in the
development life cycle of web-based systems. This framework
exploits the robustness failure modes and evaluates the
impact of modifications that can be applied to reduce the
severity of these failures. First, the system is
systematically decomposed in its components using Jacobson's
analysis. Next, with Failure Modes and Effects Analysis
(FMEA) we identify all failure modes, causes and effects.
Finally, by using Bayesian Belief Networks (BBNs) we model
each subsystem and evaluate failure severities and possible
improvements. A more complex model of the system can also be
built up by integrating the subsystem models, giving a
better understanding of the overall system behavior. We
present a practical example and we discuss the benefits of
applying this framework and BBN models to analyze the
robustness of web-based systems. |
| ISBN: 978-0-415-44786-7 |
| Record 70 of 83 |
| Author(s): Hu, L (Hu, L.); Wu, Y (Wu, Y.); Wang,
J (Wang, J.); Wang, S (Wang, S.) |
| Group Author(s): FDS Team |
| Book Group Author(s): IEEE |
| Title: Preliminary Probabilistic safety
assessment of chinese dual-functional lithium lead-test
blanket module for ITER |
| Source: 22ND IEEE/NPSS SYMPOSIUM ON FUSION
ENGINEERING: 56-59 2007 |
| Conference Title: 22nd IEEE/NPSS Symposium on
Fusion Engineering |
| Conference Date: JUN 17-21, 2007 |
| Conference Location: Albuquerque, NM |
| Abstract: A Dual Functional Lithium Lead (DFLL)
Test Blanket Module (TBM) concept for testing in
International Thermonuclear Experimental Reactor (ITER) has
been proposed. The safety assessment of DFL-TBM has been
carried out applying the Probabilistic Safety Assessment
(PSA) approach. The accident sequences have been modeled and
quantified through the event tree technique, which allows
identifying all possible combinations of success or failure
of the safety systems in responding to a selection of
initiating events. The identification of Potential Initiator
Events is provided by the Failure Mode and Effect Analysis
(FMEA) procedure. The outcome of the analysis shows that
DFLL-TBM is quite safe and presents no significant hazard to
the environment. In addition, a sensitivity analysis of
safety systems has been performed. |
| ISBN: 978-1-4244-1193-1 |
| Record 71 of 83 |
| Author(s): Parker, DJ (Parker, David J.);
Papadopoulos, YI (Papadopoulos, Yiannis I.) |
| Book Group Author(s): IEEE |
| Title: Optimisation of networked control systems
using model-based safety analysis techniques |
| Source: 2007 IEEE INTERNATIONAL CONFERENCE ON
NETWORKING, SENSING, AND CONTROL, VOLS 1 AND 2: 425-430 2007 |
| Conference Title: IEEE International Conference
on Networking, Sensing and Control |
| Conference Date: APR 15-17, 2007 |
| Conference Location: London, ENGLAND |
| Abstract: We propose a novel approach to the
optimization of networked embedded safety critical systems
in which Genetic Algorithms are used to find optimal
tradeoffs among safety, reliability and cost in the design
of such systems. The aim is to automatically evolve initial
designs that do not necessarily meet dependability
requirements to designs that fulfil such requirements with
minimal costs. The approach departs from earlier work in
that the safety and reliability model (i.e. a set of system
fault trees) is automatically synthesised from an
engineering model of the system. It also moves beyond the
classical '' success-failure '' model by introducing a
failure scheme in which components can exhibit more that one
failure modes which include the loss but also the commission
of functions as well as value and timing failures. We
discuss the approach, and compare the performance of two
implementations, based on two different Genetic Algorithms,
which have been applied on a set of well known benchmark
examples. |
| ISBN: 978-1-4244-1075-0 |
| Record 72 of 83 |
| Author(s): Eom, SW (Eom, Seung-Wook); Kim, MK
(Kim, Min-Kyu); Kim, IJ (Kim, Ick-Jun); Moon, SI (Moon,
Seong-In); Sun, YK (Sun, Yang-Kook); Kim, HS (Kim, Hyun-Soo) |
| Title: Life prediction and reliability assessment
of lithium secondary batteries |
| Source: JOURNAL OF POWER SOURCES, 174 (2):
954-958 DEC 6 2007 |
| Conference Title: 13th International Meeting on
Lithium Batteries |
| Conference Date: JUN 18-23, 2006 |
| Conference Location: Biarritz, FRANCE |
Abstract: Reliability assessment of lithium
secondary batteries was mainly considered. Shape parameter
(beta) and scale parameter (eta) were calculated from
experimental data based on cycle life test. We also examined
safety characteristics of lithium secondary batteries. As
proposed by IEC 62133 (2002), we had performed all of the
safety/abuse tests such as 'mechanical abuse tests',
'environmental abuse tests', 'electrical abuse tests'.
This paper describes the cycle life of lithium secondary
batteries, FMEA (failure modes and effects analysis) and the
safety/abuse tests we had performed. (c) 2007 Elsevier B.V.
All rights reserved. |
| ISSN: 0378-7753 |
| DOI: 10.1016/j.jpowsour.2007.06.208 |
| Record 73 of 83 |
| Author(s): Sharma, RK (Sharma, Rajiv Kumar);
Kumar, D (Kumar, Dinesh); Kumar, P (Kumar, Pradeep) |
| Title: Modeling system behavior for risk and
reliability analysis using KBARM |
| Source: QUALITY AND RELIABILITY ENGINEERING
INTERNATIONAL, 23 (8): 973-998 DEC 2007 |
| Abstract: With advances in technology and the
growing complexity of technological systems, the job of the
reliability/system analyst has become more challenging as
they have to study, characterize, measure and analyze the
behavior of systems with the help of various traditional
analytical (mathematical and statistical) techniques, which
require knowledge of the precise numerical probabilities and
component functional dependencies, information which is
difficult to obtain. Even if data are available they are
often inaccurate and are thus subject to uncertainty, i.e.
historical records can only represent the past behavior and
may be unable to predict the future behavior of the
equipment. To cope with such situations, the knowledge-based
approximate reasoning methodologies (KBARMs) provide
necessary help. Among them, the fuzzy and grey methodologies
are the most viable and effective tools for coping with
imprecise, uncertain and subjective information in a
consistent and logical manner. In this paper, the authors
present a methodological and structured approach (which
makes use of both qualitative and quantitative techniques)
to model, analyze and predict the failure behavior of two
units, namely the forming and press units of a paper
machine, using KBARMs. Various system parameters such as
repair time, failure rate, mean time between failures,
availability and expected number of failures are computed to
quantify the system behavior in terms of fuzzy, crisp and
defuzzified values. Furthermore, a risk ranking approach
based on fuzzy and grey relational analysis is discussed to
prioritize various failure causes associated with the
components in failure mode and effects analysis (FMEA).
Copyright (C) 2007 John Wiley & Sons, Ltd. |
| ISSN: 0748-8017 |
| DOI: 10.1002/qre.849 |
| Record 74 of 83 |
| Author(s): Stalhane, T (Stalhane, Tor); Sindre, G
(Sindre, Guttorm) |
| Editor(s): Parent, C; Schewe, KD; Storey, VC;
Thalheim, B |
| Title: A comparison of two approaches to safety
analysis based on use cases |
| Source: CONCEPTUAL MODELING - ER 2007,
PROCEEDINGS, 4801: 423-437 2007 |
| Book series title: LECTURE NOTES IN COMPUTER
SCIENCE |
| Conference Title: 26th International Conference
on Conceptual Modeling |
| Conference Date: NOV 05-09, 2007 |
| Conference Location: Auckland, NEW ZEALAND |
| Abstract: Engineering has a long tradition in
analyzing the safety of mechanical, electrical and
electronic systems. Important methods like HazOp and FMEA
have also been adopted by the software engineering
community. The misuse case method, on the other hand, has
been developed by the software community as an alternative
to FMEA and preliminary HazOp for software development. To
compare the two methods misuse case and FMEA we have run a
small experiment involving 42 third year software
engineering students. In the experiment, the students should
identify and analyze failure modes from one of the use cases
for a commercial electronic patient journals system. The
results of the experiment show that on the average, the
group that used misuse cases identified and analyzed more
user related failure modes than the persons using FMEA. In
addition, the persons who used the misuse cases scored
better on perceived ease of use and intention to use. |
| ISSN: 0302-9743 |
| ISBN: 978-3-540-75562-3 |
| Record 75 of 83 |
| Author(s): Yan, W (Yan Wen); Liu, JH (Liu
Jinhua); Jia, CZ (Jia Changzhi); Chen, LM (Chen Liangming) |
| Editor(s): Wen, TD |
| Title: Research on maintenance decision of gun
based on RCM theory |
| Source: ISTM/2007: 7TH INTERNATIONAL SYMPOSIUM ON
TEST AND MEASUREMENT, VOLS 1-7, CONFERENCE PROCEEDINGS:
3315-3318 2007 |
| Conference Title: 7th International Symposium on
Test Measurement |
| Conference Date: AUG 05-08, 2007 |
| Conference Location: Beijing, PEOPLES R CHINA |
| Abstract: Based on theory of reliability-centered
maintenance (RCM), the maintenance level of guns was
analyzed, thus the organizational-level maintenance items
were decided and maintenance level was supposed In view of
actuality and development of maintenance and support system,
we put forward assumption of maintenance and support modes
based on the analysis of deployment of administration
organization and maintenance organization. The results can
provide, scientific references to maintenance and support of
guns in the army. |
| ISBN: 978-988-99684-3-4 |
| Record 76 of 83 |
| Author(s): Wei, Z (Wei Zheng); Hu, B (Hu
Baioing); Zha, F (Zha Feng); Wang, TT (Wang TingTing) |
| Editor(s): Wen, TD |
| Title: Research on a method for analyzing and
predicting the life of gyro based on acoustic signal
processing |
| Source: ISTM/2007: 7TH INTERNATIONAL SYMPOSIUM ON
TEST AND MEASUREMENT, VOLS 1-7, CONFERENCE PROCEEDINGS:
4093-4096 2007 |
| Conference Title: 7th International Symposium on
Test Measurement |
| Conference Date: AUG 05-08, 2007 |
| Conference Location: Beijing, PEOPLES R CHINA |
| Abstract: As an important part of float-type
gyroscope used in stabilized compass, the gyro motor
aerodynamic bearing is recognized as the life bottleneck
according to the Failure Modes, Effects and Criticality
Analysis (FMEA). Considering the failure mechanism and
running characteristics of the aerodynamic bearing, a method
of life prediction based on gyro acoustic signal testing and
processing was presented in the paper The signal was
collected by data acquisition system. De-noised by wavelet
transform, the acoustic signal was separated from the
original low SNR collected signal. The reprocessing
procedure was accomplished by wavelet package decomposition.
The typical signal token, which reflect performance of the
aerodynamic bearing, was recognized as the "life off speed"
and disturbance in the starting and even running stage
separately, and they were found to be apparent in the
wavelet package coefficients. So the performance and life of
the gyroscopes were properly predicted. |
| ISBN: 978-988-99684-3-4 |
| Record 77 of 83 |
| Author(s): Lian, GY (Lian Guangyao); Huang, KL
(Huang Kaoli); Wei, ZL (Wei Zhonglin); Xue, KX (Xue Kaixuan) |
| Editor(s): Cui, J; Jiming, Q |
| Title: Research of testability knowledge
acquisition technology based on functional and structural
model |
| Source: ICEMI 2007: PROCEEDINGS OF 2007 8TH
INTERNATIONAL CONFERENCE ON ELECTRONIC MEASUREMENT &
INSTRUMENTS, VOL IV: 754-757 2007 |
| Conference Title: 8th International Conference on
Electronic Measurement and Instruments |
| Conference Date: AUG 16-18, 2007 |
| Conference Location: Xian, PEOPLES R CHINA |
| Abstract: Aiming at the practical problems of
lacking testability knowledge and difficult in knowledge
acquisition, it puts forward a knowledge acquisition method
based on functional model. It analyzes fault mechanics from
using test signal flow, builds models in fault space, guides
testability design by FTA and FMEA, acquires fault symptom
information by functional simulation, acquires testability
knowledge by comprehensive analysis the results at last. The
reliability of knowledge acquired by this method is very
high, which has important meaning in improving the
testability design level for products. |
| Record 78 of 83 |
| Author(s): Bai, HW (Bai, Haowei) |
| Book Group Author(s): IEEE |
| Title: Analysis of a SAE AS5643 Mil-1394b based
high-speed avionics network architecture for space and
defense applications |
| Source: 2007 IEEE AEROSPACE CONFERENCE, VOLS 1-9:
2390-2398 2007 |
| Book series title: IEEE AEROSPACE CONFERENCE
PROCEEDINGS |
| Conference Title: 2007 IEEE Aerospace Conference |
| Conference Date: MAR 03-10, 2007 |
| Conference Location: Big Sky, MT |
| Abstract: To satisfy the increasing needs of more
information transmission among subsystems, and to minimize
the latency of data transmission between high-speed
processors, the avionics interconnection in future aerospace
vehicles is required to provide high bandwidth data path.
IEEE 1394 was designed as a high speed (up to 3.2 Gbps) data
bus for consumer electronics. The Lockheed Martin's Joint
Strike Fighter (JSF) program was the first significant
implementation of IEEE 1394b for aerospace vehicles. Its
approach has been standardized by SAE AS5643. This article
is to explain the standard in details and provide insights
into it, using failure modes and effects analysis (FMEA)
tools. The analysis results and recommendations could be
used for ongoing and future aerospace vehicle programs such
as NASA Orion crew exploration vehicle. |
| ISSN: 1095-323X |
| ISBN: 978-1-4244-0524-4 |
| Record 79 of 83 |
| Author(s): Zambrano, L (Zambrano, Lyda);
Sublette, K (Sublette, Kerry); Duncan, K (Duncan, Kathleen);
Thoma, G (Thoma, Greg) |
| Title: Probabilistic reliability modeling for oil
exploration & production (E&P) facilities in the tallgrass
prairie preserve |
| Source: RISK ANALYSIS, 27 (5): 1323-1333 OCT 2007 |
| Abstract: The aging domestic oil production
infrastructure represents a high risk to the environment
because of the type of fluids being handled (oil and brine)
and the potential for accidental release of these fluids
into sensitive ecosystems. Currently, there is not a
quantitative risk model directly applicable to onshore oil
exploration and production (E&P) facilities. We report on a
probabilistic reliability model created for onshore
exploration and production (E&P) facilities. Reliability
theory, failure modes and effects analysis (FMEA), and event
trees were used to develop the model estimates of the
failure probability of typical oil production equipment.
Monte Carlo simulation was used to translate uncertainty in
input parameter values to uncertainty in the model output.
The predicted failure rates were calibrated to available
failure rate information by adjusting probability density
function parameters used as random variates in the Monte
Carlo simulations. The mean and standard deviation of normal
variate distributions from which the Weibull distribution
characteristic life was chosen were used as adjustable
parameters in the model calibration. The model was applied
to oil production leases in the Tallgrass Prairie Preserve,
Oklahoma. We present the estimated failure probability due
to the combination of the most significant failure modes
associated with each type of equipment (pumps, tanks, and
pipes). The results show that the estimated probability of
failure for tanks is about the same as that for pipes, but
that pumps have much lower failure probability. The model
can provide necessary equipment reliability information for
proactive risk management at the lease level by providing
quantitative information to base allocation of maintenance
resources to high-risk equipment that will minimize both
lost production and ecosystem damage. |
| ISSN: 0272-4332 |
| DOI: 10.1111/j.1539-6924.2007.00961.x |
| Record 80 of 83 |
| Author(s): Brown, DW (Brown, Douglas W.); Kalgren,
PW (Kalgren, Patrick W.); Byington, CS (Byington, Carl S.);
Roemer, MJ (Roemer, Michael J.) |
| Title: Electronic prognostics - A case study
using global positioning system (GPS) |
| Source: MICROELECTRONICS RELIABILITY, 47 (12):
1874-1881 DEC 2007 |
| Abstract: Prognostic health management (PHM) of
electronic systems presents challenges traditionally viewed
as either insurmountable or otherwise not worth the cost of
pursuit. Recent changes in weapons platform acquisition and
support requirements have spurred renewed interest in
electronics PHM, revealing possible applications, accessible
data sources, and previously unexplored predictive
techniques. The approach, development, and validation of
electronic prognostics for a radio frequency (RF) system are
discussed in this paper. Conventional PHM concepts are
refined to develop a three-tier failure mode and effects
analysis (FMEA). The proposed method identifies prognostic
features by performing device, circuit, and system-level
modeling. Accelerated failure testing validates the
identified prognostic features. The results of the
accelerated failure tests accurately predict the remaining
useful life of a commercial off the shelf (COTS) GPS
receiver to within +/- 5 thermal cycles. The solution has
applicability to a broad class of mixed digital/analog
circuitry, including radar and software defined radio. (c)
2007 Published by Elsevier Ltd. |
| ISSN: 0026-2714 |
| DOI: 10.1016/j.microrel.2007.02.020 |
| Record 81 of 83 |
| Author(s): Arvanitoyannis, IS (Arvanitoyannis,
Ioannis S.); Varzakas, TH (Varzakas, Theodoros H.) |
| Title: Application of failure mode and effect
analysis (FMEA), cause and effect analysis and Pareto
diagram in conjunction with HACCP to a potato chips
manufacturing plant |
| Source: INTERNATIONAL JOURNAL OF FOOD SCIENCE AND
TECHNOLOGY, 42 (12): 1424-1442 DEC 2007 |
| Abstract: Failure mode and effect analysis (FMEA)
model has been applied for the risk assessment of potato
chips manufacturing. A tentative approach of FMEA
application to the snacks industry was attempted in order to
analyse the critical control points (CCPs) in the processing
of potato chips. Preliminary hazard analysis was used to
analyse and predict the occurring failure modes in a food
chain system (potato processing and potato chips processing
plant), based on the functions, characteristics and/or
interactions of the ingredients or the processes, upon which
the system depends. CCPs have been identified and
implemented in the cause and effect diagram (also known as
Ishikawa, tree diagram and fishbone diagram). Finally,
Pareto diagrams were employed towards the optimisation
potential of FMEA. |
| ISSN: 0950-5423 |
| DOI: 10.1111/j.1365-2621.2006.01361.x |
| Record 82 of 83 |
| Author(s): Cinque, M (Cinque, Marcello);
Cotroneo, D (Cotroneo, Domenico); Di Martinio, C (Di
Martinio, Catello); Russo, S (Russo, Stefano) |
| Editor(s): Huai, J; Baldoni, R; Yen, IL |
| Title: Modeling and assessing the dependability
of wireless sensor networks |
| Source: SRDS 2007: 26TH IEEE INTERNATIONAL
SYMPOSIUM ON RELIABLE DISTRIBUTED SYSTEMS, PROCEEDINGS:
33-42 2007 |
| Book series title: SYMPOSIUM ON RELIABLE
DISTRIBUTED SYSTEMS, PROCEEDINGS |
| Conference Title: 26th IEEE International
Symposium on Reliable Distributed Systems |
| Conference Date: OCT 10-12, 2007 |
| Conference Location: Beijing, PEOPLES R CHINA |
| Abstract: This paper proposes a flexible
framework for dependability modeling and assessing of
Wireless Sensor Networks (WSNs). The framework takes into
account network related aspects (topology, routing, network
traffic) as well as hardware/software characteristics of
nodes (type of sensors, running applications, power
consumption). It is composed of two basic elements: i) a
parametric Stochastic Activity Networks (SAN) failure model,
reproducing WSN failure behavior as inferred from a detailed
Failure Mode Effect Analysis (FMEA), and ii) an external
library reproducing network behavior on behalf of the SAN
model. This library specializes the SAN model by feeding it
with quantitative parameters obtained by simulation or by
experimental campaigns; it is also in charge of updating the
network state in response to failure events during the
simulation (e.g., routing tree updated due to node
failures). The framework is thus suited to evaluate the
dependability of several WSNs, with different topologies,
routing algorithms, hardware/software platforms, without
requiring any changes to its structure. The use of the
external library makes the model simpler decoupling the
network behavior from the failure behavior Simulation
experiments are discussed that provide a quantitative
evaluation of WSN dependability for a sample scenario:
results show how the proposed framework supports WSN
developers to find proper cost-reliability trade-offs for
the system being deployed. |
| ISSN: 1060-9857 |
| ISBN: 978-0-7695-2995-0 |
| Record 83 of 83 |
| Author(s): Buckle, P (Buckle, Peter); Anderson, J
(Anderson, Janet); Ward, J (Ward, James); Jeffcott, S (Jeffcott,
Shelly); Snadden, C (Snadden, Careen); Gleeson, A (Gleeson,
Alison); Lim, R (Lim, Rosemary); Wadsworth, P (Wadsworth,
Paul) |
| Editor(s): Bust, PD |
| Title: Patient safety: An ergonomics study of
innovative design in pharmaceutical packaging |
| Source: CONTEMPORARY ERGONOMICS 2007: 457-462
2007 |
| Conference Title: Annual Meeting of the
Ergonomics-Society |
| Conference Date: APR, 2007 |
| Conference Location: Nottingham, ENGLAND |
| Conference Host: Univ Nottingham |
| Abstract: Packaging of medication is an area of
concern with respect to medication error. This study sought
to evaluate how the design might influence errors across the
current medication distribution system. This was defined as
the warehouse, pharmacy and patient domains. Observations,
interviews and proactive risk assessment, in the form of
Failure Modes and Effect Analysis or FMEA, were performed on
key processes and tasks at warehouses (n = 2), pharmacies (n
= 12) and with patients (n = 27). A new packaging design by
Almus Pharmaceuticals appeared to carry substantial benefits
in all three domains, with the greatest benefits found in
the pharmacy. The systems approach undertaken throughout the
project has provided further insights and opportunities for
improvement of medication provision. |
| ISBN: 978-0-415-43638-0 |
|
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