Spare parts inventory management with delivery lead times and rationing

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buir.advisorŞen, Alper
dc.contributor.authorKoçağa, Yaşar Levent
dc.date.accessioned2016-07-01T11:00:09Z
dc.date.available2016-07-01T11:00:09Z
dc.date.issued2004
dc.departmentDepartment of Industrial Engineeringen_US
dc.descriptionCataloged from PDF version of article.en_US
dc.description.abstractWe study the spare parts service system of a major semiconductor equipment manufacturer facing two kinds of orders of different criticality. The more critical down orders need to be supplied immediately, whereas the less critical maintenance orders allow a given demand lead time to be fulfilled. For this system, we propose a policy that rations the maintenance orders. Under a one-for-one replenishment policy with backordering and for Poisson demand arrivals for both classes, we first derive expressions for the service levels of both classes and then conduct a computational study to illustrate superior system performance compared to a system without rationing. We also conduct a case study with 64 representative parts and show that significant savings are possible through incorporation of demand lead times and rationing.en_US
dc.description.degreeM.S.en_US
dc.description.statementofresponsibilityKoçağa, Yaşar Leventen_US
dc.format.extentxi, 73 leaves, illustrations, tablesen_US
dc.identifier.itemidBILKUTUPB082804
dc.identifier.urihttp://hdl.handle.net/11693/29467
dc.language.isoEnglishen_US
dc.publisherBilkent Universityen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectInventory modelsen_US
dc.subjectdemand lead timeen_US
dc.subjectrationingen_US
dc.subjectmultiple demand classesen_US
dc.subjectspare parts planningen_US
dc.subject.lccTS160 .K63 2004en_US
dc.subject.lcshInventory control.en_US
dc.titleSpare parts inventory management with delivery lead times and rationingen_US
dc.typeThesisen_US
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