Journal of Shanghai Jiaotong University ›› 2020, Vol. 54 ›› Issue (11): 1157-1164.doi: 10.16183/j.cnki.jsjtu.2019.300

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Dynamic Opportunistic Maintenance Model of Multi-Component System Considering Degradation Interaction

YU Wenli,ZHOU Xiaojun   

  1. Department of Industrial Engineering and Management, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2019-10-22 Online:2020-12-04 Published:2020-12-04

Abstract: Based on the idea of state-rate degradation interaction and state discretization, a multi-component dynamic degradation interaction model is established. Besides, a non-periodic inspection policy is introduced based on the overall degradation condition of the interaction system. Moreover, from the perspective of maintenance, which can decrease the short-term interacted degradation rate of the related components, a dynamic opportunistic maintenance model is established with the goal of minimum maintenance cost per unit time. Furthermore, the non-periodic inspection policy and imperfect preventive maintenance actions are designed as well. The case study shows that the proposed model has cost advantages.

Key words: opportunistic maintenance; degradation interaction; multi-component system

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