Volume 37 Issue 11
Nov.  2011
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Fu Yongling, Pang Yao, Liu Hesong, et al. Fault detection of dual redundant actuation system based on the fault modeling[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(11): 1372-1377. (in Chinese)
Citation: Fu Yongling, Pang Yao, Liu Hesong, et al. Fault detection of dual redundant actuation system based on the fault modeling[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(11): 1372-1377. (in Chinese)

Fault detection of dual redundant actuation system based on the fault modeling

  • Received Date: 29 Sep 2010
  • Publish Date: 30 Nov 2011
  • In order to solve the problem of fault diagnosis of dual redundant actuation system characterized by complicated structure, a fault diagnosis method based on reverse-reasoning of fault models was proposed. With all the failure mechanism of different components considered, the typical fault models of close-loop system were established through fault injection. It was revealed that how these faults led to degradation of system performance or even total failure. According to the simulation results, the fault diagnosis method was established through classifying and reverse-reasoning of observed abnormalities and some faults were evaluated quantitatively using mathematical formulas. This fault diagnosis method covers all the components of the system. Moreover, it can not only locate the failure part of system rapidly, but also can identify and quantify the faults. Furthermore, the algorithm is easy to realize in project.

     

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