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�������պ����ѧѧ�� 2009, Vol. 35 Issue (9) :1152-1155    DOI:
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�鶫��, �� ��, ��С��*
�������պ����ѧ ����ϵͳ����ϵ, ���� 100191
Integrated reliability assessment using varied environment test data
Hong Dongpao, Zhao Yu, Ma Xiaobing*
Dept. of System Engineering of Engineering Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� The influence of environment on reliability was studied, and a method of integrated reliability assessment using varied environment test data was put forward. The relations of reliability and environment factors were described by the Cox proportional hazards model, and the influences of environment factors were measured. According to the reliability model and the measurement, a new data conversion was proposed to convert the test data of varied environment into that of the same environment. Then the reliability of product was assessed synthetically with the converted test data. With the method, the varied environment test data is used synthetically to enlarge the sample size and increase the information for reliability assessment. Thus, the precision of reliability assessment is improved. The example shows that the method is reasonable, and it is convenient for engineering.
Keywords�� reliability assessment   Cox proportional hazards model   environment factor   data conversion     
Received 2008-09-23;
About author: �鶫��(1983-),��,�㽭������,��ʿ��,hloving@163.com.
�鶫��, �� ��, ��С��.���ñ价���������ݵĿɿ����ۺ�����[J]  �������պ����ѧѧ��, 2009,V35(9): 1152-1155
Hong Dongpao, Zhao Yu, Ma Xiaobing.Integrated reliability assessment using varied environment test data[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2009,V35(9): 1152-1155
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