Other FMEA Sources
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FMEA Papers (page 3):
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Model-based Risk
Analysis of Security Critical Systems The presentation will focus
on how to use UML (Unified Modeling Language) behavioural diagrams as
input diagrams to risk analysis. The approach will be exemplified by
demonstrating how a UML sequence diagram can be used to support HazOp
for risk identification. Our approach includes both guidelines on how to
construct the input diagrams from existing system documentation and how
to perform a risk analysis using a particular input diagram. |
FMEA applied to cladding
systems reducing the risk of failure (7 pages)
Jeremy Layzell and Stephen Ledbetter, Centre for Window and Cladding
Technology, University of Bath, BA2 7AY, UK
Failure Mode and Effects Analysis (FMEA) is a systematic and analytical
quality planning tool for identifying and addressing what potentially
could go wrong with a product or process. The project ’Failure Mode and
Effects Analysis (FMEA) in the cladding industry’ describes the FMEA
technique, investigates failures of cladding on a system, component and
process level, and maps the cladding supply chain and cladding-related
decision making. The level of knowledge of failures and the fragmented
industry structure prevents rigorous use of FMEA exempli?ed by other
industries. However, a simplied form of FMEA can be performed based on
the research ?ndings to prioritize and inform decision-making and
facilitate site inspection=supervision. |
A new approach for
evaluation of risk priorities of failure modes in FMEA (12 pages)
FIORENZO FRANCESCHINI and MAURIZIO GALETTOThis paper presents a
method for carrying out the calculus of the risk priority of failures in
Failure Mode and Effect Analysis (FMEA). The novelty of the method
consists of new management of data provided by the design team, normally
given on qualitative scales, without necessitating an arbitrary and
artificial numerical conversion. The practical effects of these issues
are shown in an application example. |
Risk and failure aspects
in twin screw extrusion (7 pages)
MARKUS MEYER, Bühler AG, CH-9240 Uzwil, Switzerland
There is a multitude of norms and general guidelines relevant to machine
safety. Two possibilities are discussed which allow a systematic
analysis of hazards concerning processes, process steps and machines
down to their components, and which allow appropriate measures to be
defined. It concerns the so-called FMEA and classical safety analysis.
Using some examples from the field of extrusion technology, the
application of safety analysis is demonstrated and the measures are
described that have to be realized to guarantee protection for people.
Keywords: Extrusion, twin screw extruder, food- and feed-extrusion,
safety analysis |
Modelling and reasoning
for failure modes and effects analysis generation (12 pages)
P C Teoh and K Case
Mechanical and Manufacturing Engineering, Loughborough University,
Loughborough, Leicestershire, UK Abstract: Failure modes and effects
analysis (FMEA) is a quality improvement and risk assessment tool
commonly used in industry. It is a living document used to capture
design and process failure information. However, the traditional FMEA
has its limitations in terms of knowledge capture and reuse. In order to
increase its effectiveness, much research has been carried out to find
an effective way to provide FMEA generation. However, because of the
complexity of the information needed, most of the research concentrates
on the application for a specific design domain. This paper reviews
various FMEA research studies and modeling and reasoning methods that
can be used for generic applications. A new proposal made is based on
the `knowledge fragment’ reasoning concept suggested by Kato, Shirakawa
and Hori in 2002. FMEA is introduced in the conceptual design stage so
as to minimize the risks of costly failure. The method enables new
knowledge to be formed using the limited available information in the
conceptual design stage. A prototype has been created to evaluate the
proposed method. Case studies have been conducted to validate the
proposed method. The case studies show that the method is able to
provide reliable results with limited information.
Keywords: failure modes |
Failure modes analysis
of organizational artefacts that protect systems (5 pages)
Designed systems inevitably rely to some degree for their protection on
organizational artefacts. These are rules, procedures, instructions,
authority structures and so on that are designed, like physical devices,
but have organizational rather than physical functions. An analysis was
conducted of maritime accidents to investigate how these organizational
artefacts were implicated in failure, and a method was then developed to
help system designers to perform a failure modes analysis of these
artefacts. The proposal is that analyses of failure modes in physical
devices should be accompanied by parallel analysis of failure modes in
organizational artefacts.
Keywords: failure, failure modes and effects analysis (FMEA), accidents,
risk, organizational factors |
Project Risk Management
Using Project Risk FMEA 8 pages) |
GROUP-BASED FAILURE
EFFECTS ANALYSIS (18 pages) This paper presents the multi-based
experts Failure Effects Analysis (FEA). The experts’ opinions differ
substantially because the experts do not often agree on the level of the
failure factors (failure probability, non-detection probability,
severity of effect, and expected cost) and the functions/subsystems
attributes (e.g., importance). Therefore, conflict always occurs in
Group-based Failure Effects Analysis (GFEA). The approach uses fuzzy
Risk Priority Category (RPC) and group decision-making techniques to
study both the failure effects on the functions/subsystems and the
failure risk category with uncertain information. In addition, the
approach uses the compensated operators to allow the tradeoffs either
among failure factors or among functions/subsystems attributes. A solved
example is presented to demonstrate the Group-based Failure Effects
Analysis (GFEA) application.
Keywords: Failure Mode and Effects Analysis (FMEA); failure analysis;
risk analysis. |
An evaluation of failure
modes and effects analysis generation method for conceptual design
(15 pages) Failure modes and effects analysis (FMEA) is used in the
manufacturing industry to improve product quality and productivity.
However, the traditional approach has many
shortcomings that affect its effectiveness and limit its usefulness,
especially in the early stages of design. Automating the FMEA report
generation process seems to answer some of these problems, and there has
been much past and on-going research in this area. However, most of the
work is limited to specific applications. This paper proposes a method
for FMEA generation for a generic application using minimum information
during the conceptual design stage. Prototype software has been created
for the proposed method. It has been evaluated using case studies from
the design and manufacture of twoway radios. The evaluation revealed the
feasibility of the proposal, as well as some weaknesses that need
further improvement. Generally, the capability of the method to generate
FMEA report with minimum information is demonstrated. |
Preventing Medication
Errors in Hospitals (6 pages) |
Cultivating Knowledge
methodically: Improving analysis resolution with DeCoDe and FMEA (7
pages)
Keywords: PLC-adapted development; Synergetic Method Combination; Demand
Compliant Design (DeCoDe); FMEA; Systems Engineering |
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