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Immune-Based Fault Diagnosis Method for Gas Valve

[+] Author Affiliations
Jiye Shao, Rixin Wang, Jinbo Gao, Minqiang Xu

Harbin Institute of Technology, Harbin, China

Paper No. DETC2006-99046, pp. 413-418; 6 pages
doi:10.1115/DETC2006-99046
From:
  • ASME 2006 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 3: 26th Computers and Information in Engineering Conference
  • Philadelphia, Pennsylvania, USA, September 10–13, 2006
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 0-7918-4257-8 | eISBN: 0-7918-3784-X
  • Copyright © 2006 by ASME

abstract

Negative selection principle based on the natural immune system makes it possible to develop a new fault diagnosis technique. This paper investigates a fault diagnosis method for the gas valve of the reciprocating compressor based on the negative selection algorithm. The negative selection algorithm combining the clonal selection principle with the mutation theory is used to produce the detectors representing one fault by the sample indicating normal. The detectors representing abnormal are used to perform the fault detection and recognition. The preprocessing using discrete fourier transform to extract the characteristic frequency interval makes the method more efficient and reliable. Experimental data of three kinds of fault from the vibration signal of the gas valve of the reciprocating compressor is used to test the method. The results prove that this method is very efficient.

Copyright © 2006 by ASME

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