火力与指挥控制2012，Vol.37Issue(9)：23-26,4.
对数正态分布双应力交叉步降试验的仿真分析
Numerical Simulation of Double-Crossed Step-down-stress Accelerated Life Test under Lognormal Distribution
摘要
Abstract
Whether the reliability test efficiency can be improved through the double-crossed step-down-stress accelerated life test is simulated by computer under lognormal distribution. In this paper, Monte-Carlo method is used to simulate the procedures of both double-crossed step-down-stress accelerated life test and traditional double-crossed step-up-stress accelerated life test under the same experimental condition. Then, the simulation procedures are applied to the life test of mini-motor, simulation datas are analysed and efficiency ratio of this two tests are compared. The efficiency ratio curve shows double-crossed step-down-stress accelerated life test can greatly improve the test efficiency, which is proved to have broad application prospects when the logarithmic standard deviation is small.关键词
双应力交叉步降试验/对数正态分布/效率比/蒙特卡罗法Key words
Double-crossed step-down-stress accelerated life test/ Lognormal distribution/ Efficiency ratio/ Monte-Carlo分类
信息技术与安全科学引用本文复制引用
孙玉东,师义民..对数正态分布双应力交叉步降试验的仿真分析[J].火力与指挥控制,2012,37(9):23-26,4.基金项目
国家自然科学基金(71171164,70471057) （71171164,70471057）
西北工业大学研究生种子基金资助项目(Z2011073) （Z2011073）
