43 lines
1.9 KiB
TeX
43 lines
1.9 KiB
TeX
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% this is like an advert, why you should read this paper !!!!
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\begin{abstract}
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In failure mode analysis, it is essential to
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know the failure modes of the sub-systems and components used.
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This paper outlines a technique for determining the failure modes of a sub-system given
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its components.
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%This paper describes a process for taking a functional~group of components,
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%applying FMEA analysis on all the component failure modes possible in that functional~group,
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%and then determining how that functional group can fail.
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%With this information, we can treat the sub-system
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%as a component in its own right.
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%This new component is a derived from the sub-system~group.
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%In the field of safety engineering this derived component corresponds to a low~level sub-system.
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Once the failure modes have been determined for a sub-system,
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we can consider this to be a `derived component'
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which can be combined with others to form
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higher level sub-systems, which in turn can
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be converted to derived components.
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In this way a hierarchy representing the fault behaviour
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of a system can be built from the bottom~up.
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%This process can continue
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%until there is a complete hierarchy representing the failure mode
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%behaviour of the entire system under analysis.
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%FMMD hierarchy
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%Using the FMMD technique the hierarchy is built from the bottom up to ensure complete failure mode coverage.
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Because the process is bottom-up, syntax checking and tracking can ensure that
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no component failure mode may be overlooked.
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Once a hierarchy is in place it can be converted into a
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Failure Mode Modular de-Composition (FMMD) fault data model.
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From the FMMD fault data model, traditional FTA and FMEA models (essentially sub-trees of the FMMD fault data model) can be derived if desired.
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%This paper focuses on the process of building the blocks, the symptom extraction or abstraction process, that is key to creating an FMMD hierarchy.
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\end{abstract}
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