Journal of Zhejiang University SCIENCE A
(Monthly)

2006   Vol. 7   Suppl. II   p. 207-212

Preventive repair policy and replacement policy of repairable system taking non-zero preventive repair time

Fang You-Tong^†1, Liu Bao-You²

(¹School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)
(²Shijiazhuang Railway Institute, Shijiazhuang 050043, China)
^†E-mail: youtong@zju.edu.cn
Received Feb. 20, 2006 revision accepted May 21, 2006

Abstract: The repairable system with preventive maintenance is one of the typical systems with wide useful applications in engineering. If the system can be made as good as new by preventive maintenance, both the life stochastic variable of different periods and fault correction time stochastic variable form monotonous stochastic process. Based on the above assumption and the available results, in this paper we discuss the maintenance and replacement policy of the repairable system with preventive maintenance. The intervals of preventive maintenance, T, and the times of system failure, N, are introduced and the vector Markov process method is used. The formulation of steady state average profit rate can be deduced to solve the optimization problem of the maintenance and replacement policy.

Key words: Preventive repair, Monotone process, Vector Markov process method, Preventive repair policy and replacement policy
doi:10.1631/jzus.2006.AS0207             CLC number: TB114.3; O224; O211.6

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