Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (11): 3699-3705.doi: 10.12305/j.issn.1001-506X.2023.11.39

• Reliability • Previous Articles     Next Articles

Reliability qualification test plan based on reliability growth

Dian ZHANG, Yunyan XING, Ping JIANG   

  1. College of Systems Engineering, National University of Defense Technology, Changsha 410073, China
  • Received:2023-04-18 Online:2023-10-25 Published:2023-10-31
  • Contact: Ping JIANG

Abstract:

To solve the problems that the current reliability qualification test (RQT) standard GJB-899A provides a test qualification plan that has long test time or high test risks, and most RQT designs only rely on the product's own life data currently, with rare utilization of reliability growth data during the product development, a reliability growth process during the product development phase is modeled for products with an exponential distribution of lifespan, based on the army material systems analysis activity (ASMAA) model. The Bayes method is used to obtain the product life distribution based on the test data of the product reliability growth process, calculate the producer and user risks of the product RQT plan, and then derive the product RQT plan that meets the risk requirements. The feasibility and progressiveness of the proposed method are verified by case analysis and comparison with the test scheme proposed by GJB-899A.

Key words: reliability qualification test (RQT), reliability growth process, exponential distribution, Bayes method

CLC Number: 

[an error occurred while processing this directive]