恒定应力加速退化试验中避免伪寿命分布误指定的一种建模方法

doi:10.3969/j.issn.1000-1093.2014.12.024

兵工学报 ›› 2014, Vol. 35 ›› Issue (12): 2098-2103.doi: 10.3969/j.issn.1000-1093.2014.12.024

恒定应力加速退化试验中避免伪寿命分布误指定的一种建模方法

徐廷学¹，王浩伟¹，张磊²

(1.海军航空工程学院兵器科学与技术系山东烟台 264000; 2.海军航空工程学院科研部山东烟台 264000)

收稿日期:2014-03-13 修回日期:2014-03-13 上线日期:2015-02-06
作者简介:徐廷学(1962—)，男，教授，博士生导师
基金资助:
国防预先研究基金项目（4010801020402）

A Reliability Modeling Approach to Avoiding Mis-specification of Pseudo Life Distribution in CSADT

XU Ting-xue¹, WANG Hao-wei¹, ZHANG Lei²

(1.Department of Ordnance Science and Technology, Naval Aeronautical and Astronautical University,2.Department of Scientific Research, Naval Aeronautical and Astronautical University, Yantai 264000, Shandong, China)

Received:2014-03-13 Revised:2014-03-13 Online:2015-02-06

摘要/Abstract

摘要： 为了避免恒定应力加速退化试验(CSADT)中伪寿命分布类型误指定的发生，提出了基于退化轨迹参数折算的建模方法。区别于传统建模方法对寿命分布模型的参数进行加速建模的做法，提出的建模方法对退化轨迹函数的参数进行加速建模, 以获取所有样品在工作应力下的伪寿命值从而可以准确辨识其分布类型。通过某型碳膜电阻CSADT数据对所提方法进行了实例应用，研究结果表明所提方法有效解决了伪寿命分布误指定问题。

关键词: 兵器科学与技术, 恒定应力加速退化试验, 伪寿命, 误指定, 加速系数

Abstract: A reliability modeling approach based on parameter conversion is proposed to avoid the mis-specification of pseudo-life distribution in constant stress accelerated degradation test (CSADT). The proposed method models the parameters of degradation path functions. It is different from the traditional method that models the parameters of distribution functions. The pseudo life of all samples under the working stress is evaluated, and the distribution type can be accurately identified. A application example with the CSADT data of carbon-film resistors is provided. The research results show that the proposed method can effectively resolve the problem of mis-specification of pseudo-life distribution.

Key words: ordnance science and technology, constant stress accelerated degradation test, pseudo life, mis-specification, acceleration factor

中图分类号:

TB114.3

徐廷学，王浩伟，张磊. 恒定应力加速退化试验中避免伪寿命分布误指定的一种建模方法[J]. 兵工学报, 2014, 35(12): 2098-2103.

XU Ting-xue, WANG Hao-wei, ZHANG Lei. A Reliability Modeling Approach to Avoiding Mis-specification of Pseudo Life Distribution in CSADT[J]. Acta Armamentarii, 2014, 35(12): 2098-2103.

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恒定应力加速退化试验中避免伪寿命分布误指定的一种建模方法

A Reliability Modeling Approach to Avoiding Mis-specification of Pseudo Life Distribution in CSADT

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