基于sapecc的補(bǔ)貨計(jì)劃優(yōu)化模型研究及系統(tǒng)實(shí)現(xiàn)

1、【摘要】SAP是全球應(yīng)用最廣泛的ERP系統(tǒng)其MRP的基本原理是將市場(chǎng)需求或經(jīng)營(yíng)計(jì)劃具體化為主生產(chǎn)計(jì)劃然后參照主生產(chǎn)計(jì)劃結(jié)合庫(kù)存、工藝路線、物料清單等數(shù)據(jù)制定出生產(chǎn)計(jì)劃或采購(gòu)計(jì)劃。對(duì)于波動(dòng)過(guò)大的市場(chǎng)需求MRP運(yùn)算出的補(bǔ)貨計(jì)劃也會(huì)有波動(dòng)過(guò)大的問(wèn)題。這一問(wèn)題在中國(guó)汽車行業(yè)尤為明顯。中國(guó)汽車市場(chǎng)需求波動(dòng)巨大無(wú)法對(duì)汽車的銷售情況作出準(zhǔn)確的預(yù)測(cè)。另一方面國(guó)外強(qiáng)勢(shì)零部件供應(yīng)商要求中國(guó)整車制造廠提供的補(bǔ)貨計(jì)劃不可波動(dòng)過(guò)大且實(shí)際采購(gòu)量與之前提供的補(bǔ)貨計(jì)劃

2、預(yù)測(cè)的偏差要限定在一定范圍內(nèi)。根據(jù)MRP基本原理市場(chǎng)需求的波動(dòng)引起零部件補(bǔ)貨計(jì)劃的波動(dòng)因而傳統(tǒng)的MRP補(bǔ)貨計(jì)劃無(wú)法解決中國(guó)汽車行業(yè)補(bǔ)貨計(jì)劃的特定需求存在不足之處。該問(wèn)題的難點(diǎn)在于市場(chǎng)需求的波動(dòng)與補(bǔ)貨計(jì)劃的平滑存在矛盾其次市場(chǎng)需求變化勢(shì)必引起補(bǔ)貨計(jì)劃的調(diào)整如果強(qiáng)制不作調(diào)整則容易引起缺貨或庫(kù)存積壓。本文結(jié)合中國(guó)汽車整車制造廠對(duì)補(bǔ)貨計(jì)劃的特定要求提出了需求平滑與偏差控制的算法需求平滑的算法基于提前補(bǔ)貨周期的方法實(shí)現(xiàn)了平滑補(bǔ)貨計(jì)劃的作用偏差控制

3、的算法則將實(shí)際采購(gòu)量與歷史預(yù)測(cè)計(jì)劃采購(gòu)量的偏差控制在一定范圍內(nèi)?；赟APECC對(duì)于MRP的算...更多法實(shí)現(xiàn)將需求平滑與偏差控制的功能集成在補(bǔ)貨計(jì)劃中提出了補(bǔ)貨計(jì)劃的優(yōu)化模型。使得通過(guò)該模型計(jì)算得出的補(bǔ)貨計(jì)劃在滿足安全庫(kù)存與正常生產(chǎn)需求的同時(shí)滿足了國(guó)內(nèi)汽車行業(yè)對(duì)于補(bǔ)貨計(jì)劃的特殊要求解決了傳統(tǒng)MRP算法在中國(guó)汽車行業(yè)應(yīng)用的不足之處。基于補(bǔ)貨計(jì)劃優(yōu)化模型設(shè)計(jì)并開發(fā)BS架構(gòu)下Struts框架的基于SAPECC補(bǔ)貨計(jì)劃系統(tǒng)通過(guò)運(yùn)行在單獨(dú)服務(wù)器

4、上的C程序模塊化并實(shí)現(xiàn)補(bǔ)貨計(jì)劃優(yōu)化模型的核心算法設(shè)計(jì)了補(bǔ)貨計(jì)劃系統(tǒng)的工作流、用戶操作界面及數(shù)據(jù)庫(kù)結(jié)構(gòu)為了保證補(bǔ)貨計(jì)劃優(yōu)化算法能夠從SAPECC中獲取核心計(jì)劃基礎(chǔ)數(shù)據(jù)分析并實(shí)現(xiàn)了補(bǔ)貨計(jì)劃與SAPECC的關(guān)鍵集成技術(shù)最后分析了系統(tǒng)測(cè)試及實(shí)際應(yīng)用情況結(jié)果表明補(bǔ)貨計(jì)劃系統(tǒng)對(duì)波動(dòng)的市場(chǎng)需求能夠有效地降低補(bǔ)貨計(jì)劃的離散度并可以在滿足安全庫(kù)存與正常生產(chǎn)需求的前提下有效控制實(shí)際采購(gòu)量和歷史補(bǔ)貨計(jì)劃之間的偏差該系統(tǒng)的實(shí)現(xiàn)可以解決中國(guó)整車制造廠在補(bǔ)貨計(jì)劃方

5、面遇到的特殊困難。還原【Abstract】SAPisthemostwldwideERPsystem.ThebasicprincipleofMRPistoturnmarketdemintoMPS.PlanderpurchaseplanisbuiltaccdingtoMPSinventyrouteBOM.Thereisanissuethatreplenishmentplanfluctuateswhendemisnotsmooth.Thisi

6、ssueisobviousinvehicleindustry.Chinesevehiclemarkrtdemisfluctuatinghardtofecastaccurately.WiththewaveofmarketdemvehicleplantsMPS(masterproductionschedule)isfluctuatingneedadjustmentfrequently.Onthetherhstrongfeignpartsve

7、ndaskChinesevehicleplanttoprovidesmoothreplenishmentplanproperpurchasederwhichshouldbeinacertainrangearoundfmerreplenishmentplan.AccdingtotheprincipleofMRPmarketdemfluctuationcausesMPStofluctuatethenithasthesameeffectonM

8、RPSotraditionalMRPcantcopewiththeconflictofChinesevehicleindustryreplenishmentplan.Thekeyoftheproblemistheconflictbetweenconflictingmarket...更多demsmoothreplenishment.Changeofdamleadstoadjustmentofreplenishmentitleadstola

9、ckofstockoverstock.ConsideringthespecialreplenishmentplanrequirementofChinesevehicleindustrytheconceptofdemlevelingvariationcontrolisissuedwhichcanbehelpfultogetsmoothreplenishmentplancontrolthevariationbetweenfecastplan

10、actualpurchaseder.BasedonSAPECCreplenishmentoptimizationmodelisissuedintegratedwithvariationcontroldemleveling.Ithelpstomeettherequirementofsafetystockwhileitalsohelpsdomesticvehicleindustrytomeetthespecialrequirement.It

11、solvesthespecialproblemoftraditionalMRP.WithBSStrutsreplenishmentplansystemisdesignedbuiltbasedonSAPECC.Crealizestheceprinciple.Wkflowuserinterfacedatabasearedesigned.InterfacebetweenSAPECCreplenishmentplanisanalysedtoma