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| Accelerated Reliability Test Method Based on the Combination of Fault Physics and Mathematical Statistics |
| Received:March 16, 2021 Revised:June 16, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2021.10.020 |
| KeyWord:reliability accelerate test accelerating factor fault physics mathematical statistics accelerate model |
| Author | Institution |
| LI Mo |
Research insititute of CETC, Chengdu , China |
| SUN Rui-feng |
China Aero Polytechnical Establishment, Beijing , China |
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| Abstract: |
| This paper aimsto study the method of assessing the reliability of highly reliable, small sample electronic products in a relatively short period of time through accelerated testing. This passage first of all analyzes the trait of accelerated reliability test and summarizes the basic process of reliability accelerated test program development. By combining mathematical statistics and failure physics techniques, the method of determining accelerated stress and the calculation model of acceleration factor are studied, the process of determining accelerated test conditions and test time as well as the corresponding test result evaluation method are given, and case applications are conducted. This method overcomes the shortcomings of relying only on experience and requiring a large sample size in the conventional reliability accelerated test program design, scientifically and effectively solves the problem of reliability accelerated test program design for high-reliability, small-sample products, and forms an electronic device based on fault The design method of the reliability accelerated test scheme that combines physical and mathematical statistics has been verified to be reasonable and feasible.This test method can meet the needs of weapons and equipment developed by high reliability, tight progress, limited sample. |
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