Volume 30 Issue 10
Oct.  2015
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Article Navigation >  Journal of Aerospace Power  > 2015  >  30(10): 2338-2345
ZHANG Gong, ZHOU Yan-pei, DING Shui-ting. Probabilistic failure risk assessment method of turbine engine life limited parts for airworthiness requirements[J]. Journal of Aerospace Power, 2015, 30(10): 2338-2345. doi: 10.13224/j.cnki.jasp.2015.10.006
Citation: ZHANG Gong, ZHOU Yan-pei, DING Shui-ting. Probabilistic failure risk assessment method of turbine engine life limited parts for airworthiness requirements[J]. Journal of Aerospace Power, 2015, 30(10): 2338-2345. doi: 10.13224/j.cnki.jasp.2015.10.006
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Probabilistic failure risk assessment method of turbine engine life limited parts for airworthiness requirements

doi: 10.13224/j.cnki.jasp.2015.10.006

  • 1. Engine Certification Center, Civil Aviation Administration of China, Beijing 100102;

  • 2. Aeroengine Airworthiness Certification Center Preparatory Office, China Academy of Civil Aviation Science and Technology, Beijing 100028, China;

  • 3. School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 2014-08-22
  • Publish Date: 2015-10-28
    Abstract
  • In order to meet the requirement of airworthiness regulations on engine life limited parts (ELLPs), a theoretical model integrating stress-strength interference model, linear elastic fracture mechanics and zone based probabilistic analysis was established to assess the failure risk of ELLPs. The numerical algorithm and the computer program were also developed. The method was calibrated by the test case provided in the advisory circular. The assessment results are 1.45×10-9 times/cycle without any non-destructive inspection and 1.0×10-9 times/cycle with an inspection at 10000 cycles, respectively. The results measure up to the calibration test case very well, indicating the method to meet the terms of the regulation, thus is applicable to the current civil engine type certification.

     

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