装备制造企业服务备件联合库存管理优化研究

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1、ABSTRACTWhenequipmentmanufacturesarechangingfromproductioneconomytoserviceeconomy,themanufacturers’valuechainiSshifttotheirafterservice．Production’‘afterservicehasbecometheneweconomyincreasedot．Howtomanageservicepartsinventoryisaveryimportantthing．ItCalldirectlyinfluenceonclientdemand’Sres

2、ponse，reflectingthecompany’Safterservicelevel，andimprovingthemanufacturers’managementprofit．Thispaperproposesanewservicepartsinventorymanagementpattern，basedoninformationsharingandmanyagentsharmoniouscooperation．Inordertorealizethispattern，mycontributionswereasfollowing：1．Considingthecusto

3、merwaitingcostcausedbytheunavailablepart,amulti—locationinventoryoptimizationmodelwassetupbasedon(S-1，S)continuouscheckingpolicies．Numericalexamplesshowthepoolinginventorysystem’Soperationalcos招andstockinglevelsarelowerthanthedecentralizedinventorysystem’S．Withthecustomer’Swaitingcostperun

4、itoftimeincreasing，sometypesofservicepans’poolinginventorysystem’Soperationcostsarehigherthanthedecentralizedinventorysystem’S．2．Whenconsideringserviceparts’demandprocessbemodeledasacompoundpoissonprocess，thissystemhasanothercharacter,inwhichthebackorderbillscanbesatisfiedbythelateraltrans

5、shipmentandemergencytransshipment．Amulti．10cationinventoryoptimizationmodelwassetupbasedon(s，S)continuouscheckingpolicies．Wechosediscreteeventsimulationoptimizationwaystosetupansystemsimulationmodel，whichwasdispcitedbyflowingcharts．Numericalexamplesshowthepoolinginventorysystemoperationcos

6、tislowerthanthedecentralizedinventorysystem’S．3．Becausesomekindsofservicepartsarerepairable,failedpartsarereturnedtothecompanythatfulfilledthedemandforaready．for．usepart．Adelayedlateraltransshipmentsmayoccurwhenalocationissuppliedfromtherepairfacilityanditsstockonhandbecomespositive，whilea

7、tthesametimeatleastoneotherlocmioninthepoolinggrouphasbackorders．Insuchacase，amulti．10cationinventoryoptimizationmodelwassetup．Aimingatthispoolingsystem’Scharacter,acostallocationmodelwasputforwardbasedonmulti．martscooperating．COUntermearsure．Amutualmulti．obje