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Journal of Projectiles, Rockets, Missiles and Guidance >

2025 , Vol. 45 >Issue 3: 424 - 429

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2025.03.022

Research on Reliability Qualification Test Scheme Based on Zero-failure Data of Complex Electromechanical Equipment

  • FENG Lei ,
  • XIE Long ,
  • LIU Xi ,
  • LIU Chao ,
  • LI Haihe
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  • Xi'an Modern Control Technology Research Institute, Xi'an 710065, Shaanxi, China

Received date: 2024-12-19

  Online published: 2025-07-09

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Abstract

In order to address the problem of difficulty in determining parameters for the Weibull reliability identification test for complex electromechanical products, a Weibull distributed reliability qualification test method based on historical zero-failure data is proposed.The prior information of failure rate is calculated based on the two-parameter Weibull model and historical data, the posterior information of failure rate is obtained by Bayesian statistical theory, and the parameter estimation of Weibull distribution is obtained by least square method, and the reliability qualification test scheme is calculated. The reliability qualification test scheme is designed and compared with the scheme in GJB 899A—2009 through taking a viewing device as an example in this paper. The reliability assessment result of the Weibull distribution for reliability identification test is 9.2% more accurate than that of the exponential distribution. The established Weibull distribution reliability qualification test scheme based on zero-failure data is effective. The overall Weibull distribution test plan is stricter than the exponential distribution test plan, and this method is highly suitable for the design of reliability qualification test plans for electromechanical products. The established Weibull distribution reliability qualification test plan based on no-failure data is effective and can be directly applied to the formulation of reliability qualification test plans for complex electromechanical products.

Key words： reliability qualification test scheme; zero-failure data; Bayesian statistical theory; Weibull distribution; complex electromechanical equipment

Cite this article

FENG Lei , XIE Long , LIU Xi , LIU Chao , LI Haihe . Research on Reliability Qualification Test Scheme Based on Zero-failure Data of Complex Electromechanical Equipment[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2025 , 45(3) : 424 -429 . DOI: 10.15892/j.cnki.djzdxb.2025.03.022

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