机械制造企业重大设备维修外包费用模型

Maintenance outsourcing cost model for key equipments in mechanical manufacturing enterprises

为解决机械制造企业重大设备维修外包范围确定及维修外包费用测算的难题,提出了两种维修外包策略,建立了维修外包费用精算模型。分析了设备管理的主体,并界定了研究对象;提出两种维修外包策略,包括全包策略和选择性外包策略;建立了维修外包费用精算模型。该模型应用时间延迟理论,计算出设备可靠性有约束条件下合理的检查间隔期,以及不同检查间隔期所对应的设备故障发生次数期望值和检查中发现缺陷次数期望值。在此基础上,计算出不同维修外包策略情况下客户和代理收益期望值。最后,进行了案例分析。

To specify the extent of outsourced maintenance activities and to determine the service contract cost for key equipments in mechanical manufacturing enterprises,both two contract options and a outsourced maintenance cost model were presented.Subject of equipment management was analyzed,and research object was defined.Then,two contract options were proposed,including all-inclusive strategy and selective strategy.A cost model of maintenance outsourcing was also established.The reasonable inspection interval based on required reliability was given by using the delay time maintenance theory,and the expected number of failures and the expected number of defected identified in preventive maintenance activities were given as well.The expected profits for both customer and agent under different strategy were calculated.Finally,a numerical example was analzyed.