多周期非平穩(wěn)庫(kù)存控制模型比較分析.pdf

1、分類號(hào)：F253密級(jí)：不保密UDC：658學(xué)校代碼：11065碩士學(xué)位論文多周期非平穩(wěn)庫(kù)存控制模型比較分析宋芳媛宋芳媛指導(dǎo)教師張紀(jì)會(huì)教授學(xué)科專業(yè)名稱系統(tǒng)理論論文答辯日期2017年5月24日AbstractWiththeprogressofsciencetechnologythedevelopmentofproductivitycustomers’demismemepersonalizedthelifeofproductcycleisco

2、ntinuouslyshteningadditionalsomeotheruncertaintyfactsmakingromnessinstabilityofalotofproducts.Allthosebroughtgreatchallengetoenterprises’efficientproductioninventymanagement.Therefeitisbothofsignificantnecessarytostudyth

3、eproblemofinventycontrolundernonstationarydem.Thisthesisstudiedmultiperiodinventycontrolproblemwithstochasticnonstationarydemderleadtimeservicelevelconstraints.Firstofallageneralframewkofinventydecisionwasestablished.The

4、nastochasticinventycontrolproblemwhichaimingtominimizethetotalinventycostusingrederpointderquantityasdecisionvariableswasstudied.Astaticmodelastaticdynamicmodelweregivenrespectivelythecrespondingsolutionmethodsweregiven.

5、Thedeficiencyoftheexistingmodelwasdiscussedaremedytoitwasgiventoo.Thendifferentfecastingmodelswereusedtopredictthefuturedeminventycontroldecisionweregivenwithseveraldifferentdempatterns.Simulationstudiesweredonetotestthe

6、perfmanceofthetwocontrolmodels.Thesimulationresultsshowedthattheperfmanceofthetwomodelsisdifferentunderdifferentdempatterns.Inthecaseofcyclicaldemthedifferenceisnotsosignificantwhilethereareobviousdifferenceinthecaseboth

7、oftrenddemmixeddempatterns.Sensitivityanalysisshowsthatthemefluctuationindemthemedifficultitistocontroltheinventy.Thoseresultsprovidesomesuggestiontochoosedifferentcontrolmethodunderdifferentdempatterns.Keywds:inventycon