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Volume 35 Issue 4
Apr.  2009
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Journal of Beijing University of Aeronautics and Astronautics  > 2009  >  35(4): 464-467.
Du Shaohui, Hong jie, Xie Liyanget al. Failure risk analysis for fracture critical aero-engine components[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(4): 464-467. (in Chinese)
Citation: Du Shaohui, Hong jie, Xie Liyanget al. Failure risk analysis for fracture critical aero-engine components[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(4): 464-467. (in Chinese)
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Failure risk analysis for fracture critical aero-engine components

  • 1.

    School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China

  • 2. School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • 3. School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China

  • Received Date: 14 May 2008
  • Publish Date: 30 Apr 2009
    Abstract
  • Accroding to the newly certification specifications and standard for engines, safety analysis for aero-engine critical parts such as disks must be done. The ultimate objective of a safety analysis is to ensure that the risk to the aircraft from all engine failure conditions is acceptably low. The failure risk for fracture critical aero-engine components was discussed first. The fracture risk of a disc was analyzed based on risk assessment method. The result shows that hazardous engine effects are predicted to occur at a rate not in excess of that defined as extremely remote (probability less than 10-7 per engine flight hour).

     

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    • References(1)
  • [1] European Aviation Safaty Agency, Certification specification for engines[S] [2] FAR PART33, Airworthiness for standards:aircraft engines[S] [3] Def Stan 00-970, Design and airworthiness requirement for service aircraft, part 11-engine[S] [4] Boyed-Lee A D, Harrison G F. The development of life extension methods for fracture critical aero-engine components The RTO AVI Workshop on Qualification of life Extension Scheme for Engine Components, NATO, RTO-MP-17. Corfu, Greece : ,1998 [5] Harrison G F, Shepherd D P.Lifing philosophies for aero engine facture critical parts Aero Engine Reliability, Integrity and Safety, Proceedings of the Conference. Bristol, United Kingdom: Royal Aircraft Establishment, Farnborough,1991 [6] Bluml P , Broede J.Critical part’s life extension based on fracture mechanics The RTO AVI Workshop on Qualification of Life Extension Scheme for Engine Components. Corfu, Greece: ,1998
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