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�������պ����ѧѧ�� 2010, Vol. 36 Issue (3) :299-302    DOI:
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�� ��, �����, ��ͬ��, ������*
�������պ����ѧ ����ϵͳ����ϵ, ���� 100191
Fault tree analysis of corrosion failure for aircraft structures and improvements
Pan Bo, Huang Lingcai, Jiang Tongmin, Hou Weiguo*
Dept. of System Engineering of Engineering Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� To analyze corrosion failure of aluminum alloy structures on export airplane used in marine environment, the fault tree analysis was proposed to analyze the erosion factors of aircraft structures. Through investigating and analyzing on failure processes and failure mechanism of structural components of aluminum alloy on airplane, factors which brought on erosion of structural parts were found. Fault tree of corrosion failure was set up and the minimal cut-sets were obtained by Boolean operation, and the top-event occurrence rate was calculated. The probability importance and relative probability importance of bottom events were analyzed and arranged, and then the important bottom events which caused corrosion of aluminum alloy structures were found. Results show that the main factors which caused corrosion of aircraft structures are ocean environment, anodic oxidation and select material. Some improvements with respect to the main factors had been proposed.
Keywords�� aircraft structure   corrosion failure   fault tree analysis   minimal cut-set   probability importance     
Received 2009-03-10;
About author: �� ��(1979-),��,����������,��ʿ��,panbo@dse.buaa.edu.cn.
�� ��, �����, ��ͬ��, ������.���۷ɻ��ṹ����ʴʧЧ�������������Ľ�[J]  �������պ����ѧѧ��, 2010,V36(3): 299-302
Pan Bo, Huang Lingcai, Jiang Tongmin, Hou Weiguo .Fault tree analysis of corrosion failure for aircraft structures and improvements[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2010,V36(3): 299-302
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