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Track 1 Session 8
2:20 to 3:20 p.m. Thursday March 27, 2008
A New FMEA Methodology Based on FIDES
Reliability Models
For safety studies, FMEA
analysis is performed at the component level by indicating the effect
produced by each component failure mode. Failure intensity of the
failure mode is calculated by multiplying the component failure
intensity by the failure mode occurrence rate.
Until now, failure mode occurrence rate depends only on family
component and failure mode but not on mission profile. Thus, for the
same product used in different stress conditions, the component
failure rate is changed but not the failure mode occurrence rate,
which is considered to be a constant.
This session presents a new method, based on FIDES acceleration
laws, to estimate the component occurrence rate not as a constant
but as a mission profile dependent parameter.
Key Words: FMEA, FMECA,
FIDES, Reliability Prediction, Component Failure Mode, Failure Mode
Occurrence Rate
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