含关键部件复杂系统的预防性维修策略优化模型  

Optimization Model of Preventive Maintenance Policy for Complex System with Critical Components

作　　者：赵斐[1] 刘学娟[2] 

机构地区：[1]东北大学秦皇岛分校管理学院,河北秦皇岛066004 [2]北京科技大学东凌经济管理学院,北京100083

出　　处：《工业工程与管理》2016年第2期100-107,共8页Industrial Engineering and Management

基　　金：国家自然科学基金项目(71231001;71301009;71420107023);东北大学基本科研业务费(N152303004);东北大学秦皇岛分校博士基金(XNB201616);河北省软科学研究专项(16457402D)

摘　　要：区别于串联、并联系统,实际企业中存在含关键部件的复杂系统。针对此类系统,只有当系统中关键部件发生故障时,系统才发生故障;而非关键部件故障降低产品合格率。由此,提出定期检测的预防性维修策略,考虑了两种相互独立的更新情况(预防性维修更新和故障更新),并基于延迟时间理论和更新报酬理论建立预防性维修策略优化模型,通过最大化单位时间内的期望利润确定最优的预防性维修周期。最后,在算例分析中给出模型求解流程并对其验证,得到最优的预防性维修周期。Different from the series or parallel system,there is a kind of complex system with critical components in practical industry. For such a system,it stops work if and only if a critical component fails,which is defined as the system failure. However,a failure caused by non-critical component reduces the rate of qualified products. Then, a preventive maintenance（PM）policy is presented for such a system, which takes two independent renewal scenarios into account. An optimization model which aims to optimize the PM interval by maximizing the expected profit per unit time is proposed based on the delay time theory and the renewal award theory for such a PM policy. A numerical example is given to illustrate the proposed model where the solving process is given to optimize the PM interval.

关 键 词：复杂系统 预防性维修 检测 延迟时间 更新理论 

分 类 号：TB114.3[理学—概率论与数理统计]