Volume 29 Issue 10
Oct.  2014
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WANG Xiu-yan, LI Cui-fang, GAO Ming-yang, LI Zong-shuai. Fault diagnosis of aero-engine gas path based on SVM and SNN[J]. Journal of Aerospace Power, 2014, (10): 2493-2498. doi: 10.13224/j.cnki.jasp.2014.10.029
Citation: WANG Xiu-yan, LI Cui-fang, GAO Ming-yang, LI Zong-shuai. Fault diagnosis of aero-engine gas path based on SVM and SNN[J]. Journal of Aerospace Power, 2014, (10): 2493-2498. doi: 10.13224/j.cnki.jasp.2014.10.029

Fault diagnosis of aero-engine gas path based on SVM and SNN

doi: 10.13224/j.cnki.jasp.2014.10.029
  • Received Date: 2013-06-14
  • Publish Date: 2014-10-28
  • In order to distinguish similar faults of aero-engine gas path fault diagnosis and improve the diagnostic accuracy, a fault diagnosis method based on support vector machine(SVM) and synergetic neural network(SNN) was put forward. Firstly, the SVM after being optimized was used to diagnose and classify the faults preliminarily form measured data, and the diagnosis results were analyzed to obtain indistinguishable similar faults, then the SNN was introduced to distinguish similar faults and further determine corresponding fault model, finally this fault model was simulated based on actual data. The experimental results show that the preliminary fault diagnosis accuracy based on SVM is 96%, and after further distinguishing similar faults through SNN, the accuracy is increased to 100%.

     

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