故障诊断专家系统中诊断决策方法的研究

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2003, Vol. 24 ›› Issue (2): 147-151.

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Study of Decision Making Method Diagnostic Expert System

QI Yi, SHEN Shi-tuan, LI Yi-hua, BAI Liang

Faculty 202; Beijing University of Aeronautics and Astronautics; B eijing 100083; China

Received:2002-03-26 Revised:2002-09-25 Online:2003-04-25 Published:2003-04-25

Abstract

Abstract: The efficiency of the diagnostic process is important and should not be overlooked in the diagnosis for complex systems. An MADM(Multi-Attribute Decision Making) method was used to enhance the efficiency of the diagnostic expert system with two factors, which were the fault possibility and the test cost . This paper proposed amethod to calculate the two factor weights wiuh an actual constrained condition in order to solve the difficulty aboutconfirming the weights in MADM. The simulation shows that the MADM method enhances the diagnostic efficiency. It takes 80 percent of the time that the normal method spends.

Key words: fault diagnosis, MADM, value function, expert syst em, diagnostic efficiency

CLC Number:

TP182

QI Yi;SHEN Shi-tuan;LI Yi-hua;BAI Liang. Study of Decision Making Method Diagnostic Expert System[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2003, 24(2): 147-151.

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Study of Decision Making Method Diagnostic Expert System

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