Functional hierarchical approach to fault diagnosis

A functional hierarchical model for fault diagnosis is presented. In this approach, the fundamental analysis of the focal point of action of an entire system serves as the root of a functional structure. The functional interrelationships between the root component and the rest of the components in t...

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Bibliographic Details
Published inIEEE Proceedings on Southeastcon pp. 779 - 782 vol.2
Main Authors Vaidyanathan, G., Petry, F.E.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1990
Subjects
Diagnostic expert systems
Electrodes
Fault diagnosis
Heating
Knowledge based systems
Orifices
Plasma welding
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Summary:A functional hierarchical model for fault diagnosis is presented. In this approach, the fundamental analysis of the focal point of action of an entire system serves as the root of a functional structure. The functional interrelationships between the root component and the rest of the components in the device are used as a knowledge source for the functional model. A measure based on the complexity of the change or repair procedure and the accessibility of a component is introduced as a facility index. The opinion of an expert and the facility index are combined and used to form a functional hierarchical model. A welding system with numerous functional parameters is shown as an example to illustrate the model.< >
DOI:10.1109/SECON.1990.117923