| 对数正态分布步加试验和步降试验的效率比较分析 |
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| 引用本文： | 徐晓岭,王蓉华,於嵩,顾蓓青. 对数正态分布步加试验和步降试验的效率比较分析[J]. 机械工程学报, 2009, 45(4). DOI: 10.3901/JME.2009.04.056 |
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| 作者姓名： | 徐晓岭 王蓉华 於嵩 顾蓓青 |
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| 作者单位： | 上海对外贸易学院商务信息学院,上海,201600;上海师范大学数理信息学院,上海,200234;上海对外贸易学院国际经贸学院,上海,201600 |
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| 基金项目： | 上海市教育委员会基金，上海市重点学科项目，国家自然科学基金，上海市科委科技项目，科学计算上海高校重点实验室资助项目，市教委重点课程建设项目，统计学号业建设项目 |
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| 摘 要： | 在对数正态分布场合下,针对定时截尾步进应力加速寿命试验和步降应力加速寿命试验,根据准则1对总的产品失效数的比较和准则2对产品条件平均寿命的比较,分别对两种试验方式的效率进行比较分析.而针对定数截尾步进应力加速寿命试验和步降应力加速寿命试验,根据准则3对总试验时间的比较和准则4对样本均值的比较,分别对两种试验方式的效率进行比较分析.并以简单步进应力加速寿命试验和步降应力加速寿命试验为例,通过大量的Monte-Carlo模拟,在四个不同的准则下分别比较两种试验方式的效率,可以得到步降应力加速寿命试验有利于提高试验效率,即步降应力加速寿命试验优于步进应力加速寿命试验.因此,认为步降应力加速寿命试验很值得推广.
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| 关 键 词： | 步进应力加速寿命试验 步降应力加速寿命试验 对数正态分布 效率 定时截尾 |
Comparison Analysis of Efficiencies for Lognormal Distribution Based on Step Acceleration Test and Step Deceleration Test |
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| XU Xiaoling,WANG Ronghua,YU Song,GU Beiqing. Comparison Analysis of Efficiencies for Lognormal Distribution Based on Step Acceleration Test and Step Deceleration Test[J]. Chinese Journal of Mechanical Engineering, 2009, 45(4). DOI: 10.3901/JME.2009.04.056 |
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| Authors: | XU Xiaoling WANG Ronghua YU Song GU Beiqing |
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| Affiliation: | 1.Business Information College;Shanghai Institute of Foreign Trade;Shanghai 201600;2.College of Mathematics and Science;Shanghai Normal University;Shanghai 200234;3.International Business College;Shanghai 201600 |
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| Abstract: | Based on the lognormal distribution, the efficiencies for the type-I censored step-up-stress and step-down-stress accelerated life tests are compared and analyzed according to the first criterion by comparing the total numbers of failure products and based on the second criterion by comparing the conditional expectations of life.Also for the type-II censored step-up-stress and step-down-stress accelerated life tests, the efficiencies for these two tests are compared and analyzed according to the third crite... |
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| Keywords: | Step-up-stress accelerated life test Step-down-stress accelerated life test Lognormal distribution Efficiency Type-I censored life test |
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