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| Reliability Calculation Method of High Speed Train Electronic Products Based on Composite Stress Accelerated Life Test |
| Received:December 03, 2021 Revised:February 04, 2022 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2022.03.015 |
| KeyWord:accelerated life test reliability Weibull distribution acceleration model temperature-humidity-vibration stress generalized Egring model |
| Author | Institution |
| ZHOU Yong-gang |
CRRC Zhuzhou Electric Locomotive Research Institute Co., Ltd., Zhuzhou , China |
| WANG Peng |
CRRC Zhuzhou Electric Locomotive Research Institute Co., Ltd., Zhuzhou , China |
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| Abstract: |
| This paper aims to solve the problem that the current accelerated life test is generally not used to estimate the reliability of the product. However, the accuracy of the estimated reliability may be affected by the error of parameters. This paper proposes a method for calculating the reliability of high-speed train electronic products based on accelerated life tests. The product reliability calculation method is adopted. The method uses the temperature, humidity, vibration combined stress and generalized Egring model to carry out accelerated life tests on high-speed train electronic products. Through the test data, the reliability of the product can be evaluated under any life and any temperature, vibration and humidity environmental stress. The reliability under use expands the application range of the accelerated life test and optimizes the method and accuracy of reliability calculation. |
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