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�������պ����ѧѧ�� 2009, Vol. 35 Issue (4) :464-467    DOI:
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Failure risk analysis for fracture critical aero-engine components
Du Shaohui1, Hong jieXie Liyang2*
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

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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).
Keywords�� aero-engine   critical component   reliability   risk assessment     
Received 2008-05-14;
About author: ���ٻ�(1963-),��,ɽ���ٳ���,��ʿ��,dsh7231@TOM.com.
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���ٻ�, �� ��,л����.���շ��������ѹؼ���ʧЧ�ʷ���[J]  �������պ����ѧѧ��, 2009,V35(4): 464-467
Du Shaohui,Hong jie,Xie Liyang.Failure risk analysis for fracture critical aero-engine components[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2009,V35(4): 464-467
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