Volume 36 Issue 9
Sep.  2010
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Wang Daozhen, Zhang Xiaojie, Shu Xiaofenet al. Application of uniform design in missile components accelerated life testing[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(9): 1113-1116. (in Chinese)
Citation: Wang Daozhen, Zhang Xiaojie, Shu Xiaofenet al. Application of uniform design in missile components accelerated life testing[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(9): 1113-1116. (in Chinese)

Application of uniform design in missile components accelerated life testing

  • Received Date: 09 Jul 2009
  • Publish Date: 30 Sep 2010
  • 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.

     

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