多级多层备件供应链需求建模与仿真

Multi-indenture multi-echelon spare part supply chain requirement modeling and simulation

为提高大型复杂装备的备件满足率,降低企业备件服务费用,在对多级多层备件需求特点进行分析的基础上,提出了多级多层备件供应链需求仿真建模方法,给出了修复性维修活动备件需求仿真模型和预防性维修活动备件需求仿真模型,通过一次抽样就可以确定可修产品的一级备件需求。在确定备件需求的基础上给出了备件费用估算方法。构建了多级多层备件供应链备件需求确定的仿真算法,可以对多级多层备件供应链的备件需求进行仿真计算。通过某型IT设备多级多层备件需求仿真计算案例,得出了该设备在规定时间内多级多层备件需求量仿真结果,验证了模型的可行性和合理性。

Improving spare part fill rates of complicated hierarchic equipment and reducing enterprise spare part cost were significant for Multi-Indenture Multi-Echelon（MIME）spare part supply chain.Supply chain requirement simulation modeling method of MIME spare part was proposed,and the simulation models for spare part quantity in corrective maintenance activities and preventive maintenance were proposed.Thereby,spare part quantity required in maintenance activities was calculated according to sampling only one time in the first supply chain echelon.Spare part cost calculation method was presented in accordance with spare part quantity.MIME spare part supply chain requirement simulation algorithm was established.A MIME spare part numeral example of IT equipment was given.According to simulation calculation,the MIME spare part quantities were obtained within a given period,and the feasibility and rationality of the simulation models were validated.