Maintenance optimisation of a multi-state series-parallel system considering economic dependence and state-dependent inspection intervals

作者：Zhou Yifan^*; Zhang Zhisheng; Lin Tian Ran; Ma Lin

来源：Reliability Engineering & System Safety, 2013, 111: 248-259.

DOI：10.1016/j.ress.2012.10.006

• Series-parallel systems
• Economic dependence
• State-dependent inspection intervals
• Ant colony optimisation
• Universal generating function

This paper presents a maintenance optimisation method for a multi-state series parallel system considering economic dependence and state-dependent inspection intervals. The objective function considered in the paper is the average revenue per unit time calculated based on the semi-regenerative theory and the universal generating UGF). A new algorithm using the stochastic ordering is also developed in this paper to reduce the search space of maintenance strategies and to enhance the efficiency of optimisation algorithms. A numerical simulation is presented in the study to evaluate the efficiency of the proposed maintenance strategy and optimisation algorithms. The simulation result reveals that maintenance strategies with opportunistic maintenance and state-dependent inspection intervals are more cost-effective when the influence of economic dependence and inspection cost is significant. The study further demonstrates that the optimisation algorithm proposed in this paper has higher computational efficiency than the commonly employed heuristic algorithms.

• 出版日期2013-3
• 单位东南大学