Methods for Reliability Assessment under Irregular Time-Varying-Stress Degradation Testing

刘天宇; 孙权; 潘正强; 冯静

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Methods for Reliability Assessment under Irregular Time-Varying-Stress Degradation Testing

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Degradation tests are often used to assess the reliability of products with long failure-time or few test units. Much of the previous work on reliability assessment methods has focused on constant-stress degradation test( CSDT) and accelerated degradation test( ADT), mainly under the constant, step or progressive stresses. However,in actual testing environments,some stresses are difficult to control and vary with time irregularly,which are quite different from the three stresses mentioned above. In this paper a new approach was presented for reliability assessment with degradation data under irregular time-varying-stress( ITVS).Firstly,the conventional degradation path modeling method was improved by taking into account the influences of the variable stress on the degradation variable. Then,an example was conducted to show the effectiveness of our improved model.

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《东华大学学报：英文版》 |2014年第6期|793-795|共3页
作者
刘天宇; 孙权; 潘正强; 冯静;
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作者单位

College of Information System and Management;

National University of Defense Technology;

State Key Laboratory of High Performance Computing;

National University of Defense Technology;

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原文格式 PDF
正文语种 chi
中图分类可靠性理论;
关键词
reliability assessment; irregular time-varying-stress(ITVS); degradation test; degradation path modeling;

Methods for Reliability Assessment under Irregular Time-Varying-Stress Degradation Testing

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