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�������պ����ѧѧ�� 2010, Vol. 36 Issue (9) :1113-1116    DOI:
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������1, ������1, ������2*
1. �������պ����ѧ �ɿ�����ϵͳ����ѧԺ, ���� 100191;
2. ����΢���ӹ�˾, ���� 100016
Application of uniform design in missile components accelerated life testing
Wang Daozhen1, Zhang Xiaojie1, Shu Xiaofen2*
1. School of Reliability and Systems Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. Beijing NMC Co.,Ltd, Beijing 100016, China

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Abstract�� Temperature and humidity are typical stresses that affect the life of missile storage. Accelerated life testing is becoming a new trend to predicate the reliability of missile storage.In order to optimize the experimental design and propose corresponding parameter estimation method, the testing sequence was adjusted according to the stress level of accelerated life testing which used the improved ‘uniform design-. Thus the completely fixed sample could be reused in the following experiment to reduce the test sample size.The mathematical model ‘stress-life- was derived under the double stress. Both maximum likelihood estimation (MLE) and robust regression were used for estimating the parameters instead of maximum likelihood estimation only because of which has a high request for initial value and often does not converge. The related example verified the correctness and applicability of the design of experiment and the parameter estimation method.
Keywords�� accelerators   uniform design   robustness   regression analysis     
Received 2009-07-09;
About author: ������(1984-),��,ɽ��̩����,˶ʿ��,wdaozhen@126.com.
������, ������, ������.��������ڵ��ϲ����������������е�Ӧ��[J]  �������պ����ѧѧ��, 2010,V36(9): 1113-1116
Wang Daozhen, Zhang Xiaojie, Shu Xiaofen.Application of uniform design in missile components accelerated life testing[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2010,V36(9): 1113-1116
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