Transcript FMEA - managementsupport.com

Failure Modes and Effects Analysis
(FMEA)
http://www.managementsupport.com
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Outline
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What is FMEA?
History
Benefits
Applications
Procedure
Exercise
Summary
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What is FMEA?
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FMEA is an acronym that stands for Failure Modes and Effects
Analysis
Methodology of FMEA:
 Identify the potential failure of a system and its effects
 Assess the failures to determine actions that would eliminate
the chance of occurrence
 Document the potential failures
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Design FMEA Analysis
Item and Potential
Function Failure
Mode
List Part
Name,
Number
and
Function
List the
possible
modes of
failure
Potential
Effects of
Failure
List the
consequences
of failure on
part function
and on the
next higher
assembly
 S Potential O Detection
E Cause(s) C Method &
V of Failure C
Quality
Controls
List those
such as:
inadequate
design,
improper
materials,
etc.
List these
measures
available to
detect
failures
before they
reach the
customer
D R Recommended
E P
Actions
T N
List them for
each of the
failure modes
identified as
being
significant by
the RPN
 = Critical characteristic which may effect safety, compliance with Gov.
regulations, or require special controls.
SEV = Severity rating (1 to 10)
OCC = Occurrence frequency (1 to 10)
DET = Detection Rating (1 to 10)
RPN = Risk Priority Number (1 to 1000)
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FMEA Flow Chart
Assign a label to each process or system component
List the function of each component
List potential failure modes
Describe effects of the failures
Determine failure severity
Determine probability of failure
Determine detection rate of failure
Assign RPN
Take action to reduce the highest risk
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