Volume 28 Issue 12
Dec.  2013
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CHEN Jing-ming, JIANG Dong-xiang, XU Hong-zhi. Efficient fault identification method for dual rotor-supporting system using model-based method[J]. Journal of Aerospace Power, 2013, 28(12): 2797-2802.
Citation: CHEN Jing-ming, JIANG Dong-xiang, XU Hong-zhi. Efficient fault identification method for dual rotor-supporting system using model-based method[J]. Journal of Aerospace Power, 2013, 28(12): 2797-2802.

Efficient fault identification method for dual rotor-supporting system using model-based method

  • Received Date: 2012-11-07
  • Publish Date: 2013-12-28
  • The finite element model of dual rotor-supporting system was constructed.Based on the finite element model,vibration signal under the faults of mass unbalance and local shaft bow was simulated.A model-based method was developed to identify the fault in the dual rotor-supporting system.1-fault search method,2-fault search method and 3-fault search method were utilized to identify the fault efficiently and accurately.The validation results show that the method could identify single fault and multi-concurrent faults accurately and confirm the fault location,severity and phase simultaneously.This method optimizes fault search process,which is used to decreases 98.9% calculation amount in the ideal situation,and accelerates fault identification.Besides,if comparing with the identification results by adding different adding noises,the relative error is around 1% which validates good robustness to noise.

     

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