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Robin Clark 2010-06-21 12:34:42 +01:00
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symptom_ex_process/symptom_ex_process.tex
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@ -11,13 +11,12 @@ its components.
This chapter describes a process for taking a functional group of components, applying FMEA analysis and then determining how that functional group can fail. This chapter describes a process for taking a functional group of components, applying FMEA analysis and then determining how that functional group can fail.
With this information, we can treat the functional group With this information, we can treat the functional group
as a component in its own right. as a component in its own right.
This new component is a derived component. This new component is a derived component.
For a top down technique this would correspond to a low~level sub-system. For a top down technique this would correspond to a low~level sub-system.
%The technique uses a graphical notation, based on Euler\cite{eulerviz} and Constraint diagrams\cite{constraint} to model failure modes and failure mode common symptom collection. The technique is designed for making building blocks for a hierarchical fault model. %The technique uses a graphical notation, based on Euler\cite{eulerviz} and Constraint diagrams\cite{constraint} to model failure modes and failure mode common symptom collection. The technique is designed for making building blocks for a hierarchical fault model.
Once the failure modes have been determined for a sub-system/derived~component, Once the failure modes have been determined for a sub-system/derived~component,
This derived component can be combined with others to form functional groups this derived component can be combined with others to form functional groups
to model to model
higher level sub-systems/derived~components. higher level sub-systems/derived~components.
In this way a hierarchy to represent the fault behaviour In this way a hierarchy to represent the fault behaviour