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首页> 外文期刊>Journal of applied statistics >A variables repetitive group sampling plan under failure-censored reliability tests for Weibull distribution
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A variables repetitive group sampling plan under failure-censored reliability tests for Weibull distribution

机译:威布尔分布失效检查下的变量重复群抽样计划

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摘要

We propose a variables repetitive group sampling plan under type-II or failure-censored life testing when the lifetime of a part follows a Weibull distribution with a known shape parameter. The acceptance criteria do not involve unknown scale parameter differently from the existing plans. To determine the design parameters of the proposed plan, the usual approach of using two points on the operating characteristic curve is adopted and an optimization problem is formulated so as to minimize the average number of failures observed. Tables for design parameters are constructed when the quality of parts is represented by the unreliability or the ratio of the mean lifetime to the specified life. It is found that the proposed sampling plan can reduce the sample size significantly than do the single sampling plan.
机译:当零件的寿命遵循具有已知形状参数的威布尔分布时,我们提出了在II型或失效检查寿命测试下的变量重复群抽样计划。验收标准与现有计划没有不同地涉及未知比例参数。为了确定拟议计划的设计参数,采用了在工作特性曲线上使用两个点的常规方法,并提出了一个优化问题,以最大程度地减少观察到的平均故障数。当零件的质量以不可靠度或平均寿命与指定寿命之比表示时,构成设计参数表。发现所提出的抽样计划可以比单一抽样计划显着减少样本量。

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