Volume 35 Issue 8
Aug.  2020
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Article Navigation >  Journal of Aerospace Power  > 2020  >  35(8): 1724-1734
QI Lei, LI Zhiping, YANG Dong. Destabilizing factors on surge and stall characteristic in aero-engine airworthiness certification[J]. Journal of Aerospace Power, 2020, 35(8): 1724-1734. doi: 10.13224/j.cnki.jasp.2020.08.017
Citation: QI Lei, LI Zhiping, YANG Dong. Destabilizing factors on surge and stall characteristic in aero-engine airworthiness certification[J]. Journal of Aerospace Power, 2020, 35(8): 1724-1734. doi: 10.13224/j.cnki.jasp.2020.08.017
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Destabilizing factors on surge and stall characteristic in aero-engine airworthiness certification

doi: 10.13224/j.cnki.jasp.2020.08.017
  • 1.

    Airworthiness Certification Center,Civil Aviation Administration of China,Beijing 100102,China

  • 2.

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

  • 3.

    National Key Laboratory of Science and Technology on Aero-Engine,Aero-thermodynamics,School of Energy and Power Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China

  • Received Date: 2020-01-01
  • Publish Date: 2020-08-28
    Abstract
  • Combining aerothermodynamics theory with engineering problems in the airworthiness field, the representative destabilizing factors of engine surge and stall characteristics were investigated systematically. A fast method of surge/stall margin prediction was established, based on which the destabilizing factors and their laws of JT9D engine model were studied. Results showed that the most important factor affecting the stability margin of fan components was distortion, and the most important factor affecting the stability margin of booster stage and high-pressure compressor was structural decay during the lifetime. The related key elements of CCAR 3365 compliance verification activities have been confirmed. The compliance verification process of CCAR 3365 has been improved, providing a technical support for airworthiness certification ability improvement.

     

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