电工技术学报2016，Vol.31Issue(18)：46-53,8.
基于粗糙集理论和生命初态信息的继电器寿命预测方法
The Life Prediction Method of Relay Based on Rough Set Theory and Relay’s Initial Life Information
摘要
Abstract
Working life is an important feature of product reliability. However the product screening method using life as the sole index hasn’t been thoroughly studied for long life products such as relays. After the life test data of relays was analyzed,a fact was foundrecently that there are some relations between relay’s initial working state and its working life, i.e., better performance of the initial state, longer life expectancy of the individual relay, and vice versa. Based on the fact, a method of the individual relay’s life predicting and screening was presented. Firstly, obtained the initial state performance parameters values and life values of the sample relays through life test. Secondly, extracted a set ofparameters associated with life based on the method of attribute reduction from the rough set theory, then established a set of life decision rules based on the extracted parameters. After that, for any one of the relay whose model same as the samples, its life could be predicted only according to its initial state information and the rules, then the screening using life as the sole index could be achieved. At last, the availability of the above method was proved by a practical example of relay.关键词
继电器/生命初期特征/寿命预测/产品筛选/粗糙集理论Key words
Relay/initial state information/life prediction/product screening/rough set theory分类
信息技术与安全科学引用本文复制引用
李玲玲,张士暖,李志刚,贺鹏举..基于粗糙集理论和生命初态信息的继电器寿命预测方法[J].电工技术学报,2016,31(18):46-53,8.基金项目
国家自然科学基金（61072100、51377044），河北省自然科学基金（E2014202230）和河北省高校创新团队领军人才培育计划（LJRC003）资助项目。 （）
