关键词: 串行线系统, 产能约束资源, 机会维护, 可用性

Abstract: To improve the reliability of series production system,a modeling method of opportunistic preventive maintenance based on Capacity Constraint Resource (CCR) was proposed by ensuring the system capacity and reducing the system maintenance cost.According to the analysis of availability and maintenance cost,preventive maintenance models for different equipment types were set up.A cost-saving function of opportunistic maintenance was established to find out an optimal opportunistic maintenance strategy by considering whether the non-bottleneck equipments before the bottleneck adopted opportunistic maintenance strategy or not.The case was presented to demonstrate the decision-making process of opportunistic maintenance strategy.Relationships between opportunistic maintenance strategy and corresponding parameters were identified through sensitivity analysis.Analysis results indicated that the proposed modeling method was feasible and effective for implementing opportunistic maintenance of the series production system.

Key words: series production system, capacity constraint resource, opportunistic maintenance, availability