精益六西格玛在服务备件库存管理中的应用

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1、上海交通大学硕士学位论文精益六西格玛在服务备件库存管理中的应用姓名：张冬申请学位级别：硕士专业：工业工程指导教师：董明20081201上海交通大学工程硕士学位论文ABSTRACTTheApplicationofLeanSix-sigmaInServiceSparePartsInventoryManagementABSTRACTAfter-salesservicehasbecomearichresourceofprofit,andtimelyresponseforservicesparepartsrequirementissupp

2、osedtobeanveryimportantfactortopromisesatisfactoryafter-saleservicetocustomers.Duetouncertaintyandnon-predictability,thesparepartsinventoryandleadtimemanagementbecomerelativelydifficult,requiringabalancebetweenimprovingservicequalityandreducinginventorycost.Thispaper

3、introducedLeansix-sigmaandapplieditonaprojectofsparepartsinventoryimprovementforAirCompressorsinIngersollRand.ItprovesthatLeansix-sigmaisfeasibleandefficienttosolveourproblem.Leansix-sigmaintegratesmethodologyofleanthinkingandsix-sigmatogether,andutilizeDMAICL(Define

4、-Measure-Analyse-Improve-Control-Leverage)toidentifynonvalue-addedactivitiesinbusinessprocessinordertocopewithchangingcustomerneedsandimprovingtheserviceresponse.Leansix-sigmaconnectsvalueidentifyinganddataanalysistogether.Inthispaper,itisusedtofocusoninventoryturnov

5、erandleadtimetomeetcustomerneeds.Inthestageofimprovement,safetystockissetbasedonservicelevelThecompanyintendtoachieveThepracticalresultisthatinventoryturnoverincreasedfrom2.5to4,andpurchasingorderfulfillmentleadtimeisalsoreducedby21%,showcasingfeasibilityandeffective

6、nessinsolvingthiskindofproblems.Characteristicsandinnovativenesspresentedare:1)AccordingtoLeansix-sigmatheory,servicesparepartsinventorymanagementanddeliveryarebothprocesses,includingbothvalue-addedandnnvalue-addedparts.Takeinventoryturnoverandleadtimeintoaccount,thi

7、spaperhasachievedfruitfulresults;2)AttheimprovestageofLeansix-sigmaprojects,thispaper第II页上海交通大学工程硕士学位论文ABSTRACThasgaveaproposaltosetsafetystockbasedonservicelevelanddemandforecast.Andwiththat,demanduncertaintycanbesatisfiedandinventorycosthasbeenreducedbyalargepercen

8、t;3)ApracticalcaseofInventorymanagementforservicesparepartsinAirCompressorsinIngersollRandiselaborated.ItmadeaclearpresentationofDM