非计划停机下考虑结构相关性的串并联系统机会维修决策研究  

Research on Opportunistic Maintenance Decision Method of Series-Parallel System at Unscheduled Shutdown Considering Structural Dependency

作　　者：管业勤 蒋祖华[1] 孙小明[1] 王海丽[1] GUAN Yeqin;JIANG Zuhua;SUN Xiaoming;WANG Haili(Shanghai Jiao Tong University School of Mechanical Engineering,Shanghai 200240,China)

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《工业工程与管理》2021年第4期117-124,共8页Industrial Engineering and Management

基　　金：国家自然科学基金资助项目(71461018,71361019);工信部绿色涂装项目(工信部装函[2019]359)。

摘　　要：以非计划停机下的多状态串并联系统为研究对象,假设将部件恢复至不同工作状态的维修方式有多种,建立以给定的工作状态阈值为限制条件的系统可靠度函数;同时将部件间的结构关系转换为系统维修前的拆卸序列,引入拆卸成本和拆卸时长,建立考虑结构相关性的机会维修模型。将拆卸成本和拆卸时长分别作为维修费用和耗时的组成部分,在费用和耗时有限的情况下,以系统可靠度为目标函数,决策出系统各部件的维修方式。通过案例分析表明,提出的机会维修模型能够有效决策出非计划停机下的维修活动组合。通过对比分析结构相关性对维修效果的影响,说明考虑结构相关性的维修决策模型更贴近生产实际。Taking multi-state series-parallel system under unscheduled shutdown as the research,and assuming that there were multiple ways to restore parts to different operating states,a function about system reliability with a given operating state threshold as a constraint was established.At the same time,the structural dependency was converted into a disassembly sequence before the system was repaired. After the disassembly cost and disassembly time were introduced,an opportunity maintenance model considering structural dependency was built. Considering the unscheduled shutdown happened and the structural dependency reflected in the system disassembly sequence,the proposed maintenance model made full use of the downtime and maximizes the system reliability under the premise of meeting the minimum system requirements and resource constraints.Finally,an example was given to verify the model′s effectiveness.

关 键 词：非计划停机 结构相关性 串并联系统 机会维修 

分 类 号：F273.2[经济管理—企业管理]