Systems Engineering and Electronics ›› 2026, Vol. 48 ›› Issue (6): 1972-1979.doi: 10.12305/j.issn.1001-506X.2026.06.18

• Systems Engineering • Previous Articles     Next Articles

Bayes reliability demonstration of products based on priors from similar products

Yu WANG1, Haobo QIU1,*, Xiaoer HE2, Mingjing WANG1, Chen JIANG1, Liang GAO3   

  1. 1. State Key Laboratory of Intelligent Manufacturing Equipment and Technology,Huazhong University of Science and Technology,Wuhan 430074,China
    2. Wuhan Second Ship Design and Research Institute,Wuhan 430205,China
    3. National Center of Technology Innovation for Intelligent Design and Numerical Control,Huazhong University of Science and Technology,Wuhan 430074,China
  • Received:2025-02-21 Revised:2025-05-09 Online:2026-06-25 Published:2026-03-19
  • Contact: Haobo QIU

Abstract:

To address the prolonged duration associated with reliability demonstration tests for long-life and high-reliability products, this paper focuses on products whose lifetimes follow exponential distributions and proposes a Bayes reliability demonstration test (RDT) design method incorporating prior information obtained from similar products. Firstly, the Bayesian method is introduced into the RDT design. Concretely, the experimental data achieved from similar products is viewed as prior information. The similarity between any two products is quantified by goodness-of-fit test statistics, and prior distribution is calculated through an inheritance factor. Secondly, the Bayes average risk criterion is utilized to describe the risks for both the manufacturer and the consumer. Finally, an optimal RDT plan is obtained through a numerical iteration method. Compared with the RDT plan in the GJB899A-2009 standard, the experimental results exhibit that the devised method can significantly reduce the test time.

Key words: reliability demonstration test, Bayes methods, similar products, inheritance factor

CLC Number: 

[an error occurred while processing this directive]