Abstract
With the help of relative entropy theory, norm theory, and bootstrap methodology, a new hypothesis testing method is proposed to verify reliability with a three-parameter Weibull distribution. Based on the relative difference information of the experimental value vector to the theoretical value vector of reliability, six criteria of the minimum weighted relative entropy norm are established to extract the optimal information vector of the Weibull parameters in the reliability experiment of product lifetime. The rejection region used in the hypothesis testing is deduced via the area of intersection set of the estimated truth-value function and its confidence interval function of the three-parameter Weibull distribution. The case studies of simulation lifetime, helicopter component failure, and ceramic material failure indicate that the proposed method is able to reflect the practical situation of the reliability experiment.
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Project (Nos. 51075123 and 50675011) supported by the National Natural Science Foundation of China
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Xia, Xt., Jin, Yp., Xu, Yz. et al. Hypothesis testing for reliability with a three-parameter Weibull distribution using minimum weighted relative entropy norm and bootstrap. J. Zhejiang Univ. - Sci. C 14, 143–154 (2013). https://doi.org/10.1631/jzus.C12a0241
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DOI: https://doi.org/10.1631/jzus.C12a0241
Key words
- Reliability
- Hypothesis testing
- Three-parameter Weibull distribution
- Weighted relative entropy
- Norm
- Bootstrap