恒加应力加速寿命试验的可靠性非参数统计分析

Nonparametric Statistical Analysis of the Reliability of Life Test under Constantly Accelerating Stress

提出的可靠性非参数统计分析法 ,充分利用恒加应力加速寿命试验的失效个数、失效时间及未失效个数 3种宝贵的数据信息 .克服传统分析法只利用失效个数和失效时间信息的缺陷 ,更合理地对产品的可靠性加以评定 .主要内容 :(1) Pk 的估计公式 ;(2 ) Pk<Pk+ 1的证明 ;(3)恒加应力寿命统计分析 ;(4)寿命分布的参数估计 ;(5 )

For more reasonably evaluating the reliability of products, the authors put forward the method of nonparametic statistical analysis of reliability. By which the data information of life test under constantly accelerating stress, three valuable data information including failure number and failure time and effective number can be fully utilized; and the imperfection of utilizing only failure number and failure time, as the method of traditional analysis does, can be perfected. The main contents include formula for estimating k ; demonstration of P k>P k+1 ; statistical analysis of life under constantly accelerating stress; parametric estimate of life distribution; and case calculation and comparison.