Systems Engineering and Electronics ›› 2024, Vol. 46 ›› Issue (7): 2383-2392.doi: 10.12305/j.issn.1001-506X.2024.07.20

• Systems Engineering • Previous Articles    

Reliability of multi-state repairable systems under G-mixed redundancy strategy

Yanqing WEN1, Baoliang LIU1,*, Haiyan SHI1, Qing'an QIU2, Caiwen GAO1   

  1. 1. College of Mathematics and Statistics, Shanxi Datong University, Datong 037009, China
    2. School of Management and Economics, Beijing Institute of Technology, Beijing 100081, China
  • Received:2023-03-16 Online:2024-06-28 Published:2024-07-02
  • Contact: Baoliang LIU

Abstract:

In this paper, the reliability for a repairable system under G-mixed redundancy strategy is investigated. The system consists of four components and a repairman, in which the multiple vacation policy of the repairman is adopted so that the human resources can be fully utilized. The phase-type (PH) distribution is used to describe various random variables in the model. A system reliability model with better commonality is developed, and some reliability indexes of the system are obtained in both transient and stationary regimes by employing matrix-analytic method. Finally, the applicability of the model is verified by numerical examples, and the system reliability under G-mixed redundancy strategy is compared with that under K-mixed redundancy strategy. The results show that the proposed reliability model under G-mixed redundancy strategy is significantly higher than that under the K-mixed redundancy strategy.

Key words: phase-type (PH) distribution, multiple vacation, G-mixed redundancy strategy, repairable system

CLC Number: 

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