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OPTIMAL DESIGN OF FAILURE-CENSORED CONSTANT-STRESS LIFE TEST PLANS FOR THE INVERSE WEIBULL DISTRIBUTION

机译:失败的失败常压寿命试验计划的最佳设计

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This paper presents the optimal design of constant-stress partially accelerated life tests (CSPALT) using type-II censored data from the inverse Weibull distribution. The maximum likelihood approach is applied to estimate the distribution parameters and the corresponding factor. In addition, the corresponding confidence interval estimates are obtained. Moreover, optimal CSPALT plans are developed using the D-optimality criterion. That is, the proportion of test units that should be allocated to run under accelerated condition is optimally determined. This proportion is obtained such that the generalized asymptotic variance of the maximum likelihood estimators of the model parameters is minimized. To illustrate the theoretical results presented in this paper, simulation studies are conducted.
机译:本文介绍了使用ICI-II逆eibull分布的II型官方数据的恒定应力部分加速寿命测试(CSPALT)的最佳设计。 最大似然方法应用于估计分布参数和相应因子。 另外,获得了相应的置信区间估计。 此外,使用D-Optimaly标准开发了最佳的CSPALT计划。 也就是说,最佳地确定应分配以在加速条件下分配的测试单元的比例。 获得该比例,使得模型参数的最大似然估计器的广义渐近方差最小化。 为了说明本文提出的理论结果,进行了模拟研究。

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