The reliability calculation method of on-board electro-mechanical components based on test data

Ruyan Zhao; Zhenmin Zhuang; Haibin Cui

doi:10.1117/12.2692069

23 August 2023 The reliability calculation method of on-board electro-mechanical components based on test data

Ruyan Zhao, Zhenmin Zhuang, Haibin Cui

Proceedings Volume 12784, Second International Conference on Applied Statistics, Computational Mathematics, and Software Engineering (ASCMSE 2023); 1278418 (2023) https://doi.org/10.1117/12.2692069
Event: 2023 2nd International Conference on Applied Statistics, Computational Mathematics and Software Engineering (ASCMSE 2023), 2023, Kaifeng, China

Abstract

The calculation process of the missile electro-mechanical components reliability by using the two parameter Weibull distribution model complexes, and only consider the final expiry time, without considering the change of test data in the process of failure and the effect of changes on the reliability test data calculation. This paper proposes a reliability calculation method of on-board electro-mechanical components based on the test data, by analysing the characteristics of components in mechanical or electrical characteristics index test value deviation and trend, combined with the length of service, to evaluate the health status of electro-mechanical components, and use the evaluation value to calculate the shape parameter and size parameter of weibull, then the two-parameter Weibull distribution model is used to calculate the reliability of computer electrical components. The reliability of the pressure switch is 0.9993 after 9 months of service. It can be verified by example analysis that the calculation method not only takes into account the change of test data during the failure process of electro-mechanical components, but also takes into account the influence of the change of test data on the reliability calculation, and the two-parameter Weibull distribution model is more convenient to calculate the reliability.

Citation Download Citation

Ruyan Zhao, Zhenmin Zhuang, and Haibin Cui "The reliability calculation method of on-board electro-mechanical components based on test data", Proc. SPIE 12784, Second International Conference on Applied Statistics, Computational Mathematics, and Software Engineering (ASCMSE 2023), 1278418 (23 August 2023); https://doi.org/10.1117/12.2692069

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KEYWORDS

Switches

Reliability

Data modeling

Failure analysis

Neodymium

Missiles

Accelerated life testing

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