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dc.contributor.authorÖzdamar, Linet
dc.contributor.authorAktin, Ayşe Tülin
dc.date.accessioned2014-10-24T14:01:13Z
dc.date.available2014-10-24T14:01:13Z
dc.date.issued1999-11-10
dc.identifier.issn0020-7543
dc.identifier.urihttp://hdl.handle.net/11413/807
dc.description.abstractA production-distribution model involving production and transportation decisions in a central factory and its warehouses is developed. The model is based on the operating system of a multi-national company producing detergents in a central factory from which products are distributed to geographically distant warehouses. The overall system costs are optimized considering factory and warehouse inventory costs and transportation costs. Constraints include production capacity, inventory balance and fleet size integrity. Here, a hierarchical approach is adopted in order to make use of medium range aggregate information, as well as to satisfy weekly fluctuating demand with an optimal fleet size. Thus, a model which involves an aggregation of products, demand, capacity, and time periods is solved. In the next planning phase, the aggregate decisions are disaggregated into refined decisions in terms of time periods, product families, inventory and distribution quantities related to warehouses. Consistency between the aggregate and disaggregation models is obtained by imposing additional constraints on the disaggregation model. Infeasibilities in the disaggregated solution are resolved through an iterative constraint relaxation scheme which is activated in response to infeasible solutions pertaining to different causes. Here, we investigate the robustness of the hierarchical model in terms of infeasibilities occurring due to the highly fluctuating nature of demand in the refined time periods and also due to the aggregation process itself.tr_TR
dc.language.isoen_UStr_TR
dc.publisherTAYLOR & FRANCIS LTD, ONE GUNPOWDER SQUARE, LONDON EC4A 3DE, ENGLANDtr_TR
dc.relationInternational Journal Of Production Researchtr_TR
dc.subjectDisaggregationtr_TR
dc.subjectIndostrytr_TR
dc.subjectModeltr_TR
dc.subjectDisagregasyontr_TR
dc.subjectSanayitr_TR
dc.subjectModeltr_TR
dc.titleA hierarchical planning approach for a production-distribution systemtr_TR
dc.typeArticletr_TR
dc.contributor.authorID57877
dc.contributor.authorID109203
dc.identifier.wos83173500010
dc.identifier.wos83173500010en
dc.identifier.scopus2-s2.0-0032596132
dc.identifier.scopus2-s2.0-0032596132en


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