步降应力加速寿命试验（续篇)-一-优化设计篇

兵工学报 ›› 2007, Vol. 28 ›› Issue (6): 686-691.

步降应力加速寿命试验（续篇)-一-优化设计篇

汪亚顺，张春华，陈循

国防科学技术大学机电工程与自动化学院，湖南长沙410073

收稿日期:2006-03-14 上线日期:2014-12-25
通讯作者: 汪亚顺
基金资助:
武器装备预研基金项目(51419030103KG0148)

Step-down-stress Accelerated Life Test Optimal Design

WANG Ya-shun, ZHANG Chun-hua, CHEN Xun

College of Mechatronics and Automation, National University ol Defense Technology, Changsha 410073, Hunan, China

Received:2006-03-14 Online:2014-12-25
Contact: WANG Ya-shun

摘要/Abstract

摘要： 如何设计试验方案使试验评估结果最准确、试验代价最小，是步降应力加速寿命试验应用中面临的一个重要问题。针对传统解析优化方法在某些场合最优解的封闭形式难以得到甚至不存在的情况，提出了一种新的基于Monte Carlo仿真的步降应力加速寿命试验优化设计方法，并且针对Monte Carlo方法高精度计算中的计算量问题，利用优化目标函数的连续性，将非参数化曲面拟合方法引入优化过程，使计算量大大下降，满足了工程应用的要求。最后提供的算例说明了该方法的应用过程及有效性。

关键词: 数理统计学 , 加速寿命试验 , 步降应力加速寿命试验 , 优化设计 , 仿真 , 可靠性

Abstract: A main challenge is how to design a step-down-stress accelerated life test plan of which the precise results are obtained with low cost. A novel method of optimal designs for step-down-stress ac?celerated life test was proposed by Monte Carlo simulation under the conaition that the closed form of the optimal solution can be difficultly obtained or not exist by the traditional method of analytic opti?mization in a certain case. In order to decrease compute efforts which may be very large in Monte Carlo simulation based optimal designs, a nonparametric surface fitting was incorporated into optimization by using continuity of object function for meeting the application requirements. The illustration demon?strates the applied process and validity of the method.

Key words: mathematical statistics , accelerated life test , step-down-stress accelerated life test , opti?mal design , simulation , reliability

中图分类号:

TB114.3

汪亚顺，张春华，陈循. 步降应力加速寿命试验（续篇)-一-优化设计篇[J]. 兵工学报, 2007, 28(6): 686-691.

WANG Ya-shun, ZHANG Chun-hua, CHEN Xun. Step-down-stress Accelerated Life Test Optimal Design[J]. Acta Armamentarii, 2007, 28(6): 686-691.

参考文献

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