考虑人力资源约束的串联系统机会维修策略优化  

Optimization of Opportunistic Maintenance Strategy for Series Systems Considering Human Resource Constraints

作　　者：薛朝改[1] 禹鹤 李淑敏[1] XUE Chaogai;YU He;LI Shumin(School of Management Engineering,Zhengzhou University,Zhengzhou Henan 450001,China)

机构地区：[1]郑州大学管理工程学院,河南郑州450001

出　　处：《机床与液压》2023年第9期207-214,共8页Machine Tool & Hydraulics

基　　金：国家自然科学基金专项项目(71940016);河南省高等学校重点科研项目计划(20A630033)。

摘　　要：针对多部件串联系统维修存在人力资源约束的问题,提出一种考虑人力资源配置的机会维修策略模型。针对部件在使用过程中受外部环境影响发生劣化的特点,引入役龄回退因子和故障率递增因子,建立单部件的预防性维修策略。引入机会维修思想,以机会维修系数作为优化变量,对系统的维修策略进行组合优化,在维修人员有限的条件下确定维修任务的配置以及系统的停机时间,进一步构建考虑人力资源约束的串联系统机会维修策略模型。最后,针对算例进行建模,通过元胞自动机算法应用MATLAB进行仿真分析,获得系统的最优机会维修方案。结果显示:考虑机会维修的策略相比传统的预防性维修可有效降低维修成本13.6%,提高系统的可用度2.05%,考虑人力资源约束的机会维修策略相比人员无约束的机会维修策略可有效降低维修成本7.3%,此时经济效益最高。Aiming at the problem of human resource constraint in the maintenance of multi-part series system,an opportunistic maintenance strategy model considering human resource configuration was proposed.According to the characteristics of components'deterioration under the influence of external environment,the aging regression factor and failure rate increasing factor were introduced to establish the preventive maintenance strategy for single components.The opportunistic maintenance was introduced,and the maintenance coefficient was taken as the optimization variable to optimize the maintenance strategy combination of the system.The configuration of maintenance tasks and the downtime of the system were determined under the condition of limited maintenance personnel,and the opportunistic maintenance strategy model of the serial system with human resource constraints was further established.Finally,the model was applied in a case study,and simulation analysis was carried out by using the cellular automata algorithm and MATLAB to obtain the optimal opportunistic maintenance scheme of the system.The results show that compared with the traditional preventive maintenance,the strategy of considering opportunistic maintenance can effectively reduce the maintenance cost by 13.6%and improve the system availability by 2.05%.Compared with the strategy without personnel constraints,the opportunistic maintenance strategy with human resource constraints can effectively reduce the maintenance cost by 7.3%,and the economic benefit is the highest.

关 键 词：维修人力资源 串联系统 机会维修 可用度 总维修成本 

分 类 号：TH17[机械工程—机械制造及自动化]