宜生乳业冷链物流配送方案优化设计 - 图文(2)

山东科技大学工程硕士学位论文摘要

ABSTRACT

Coldchaindistributionthroughoutthecoldchainlogisticssystemplaysanimportantrole,coldchaininChinaisthewholecoldchainlogisticsdistributionsystemoftheweaklink,mainlyistheefficiencyislow,andthehighrateofconsumptionphenomenon.Theproblemislargelyduetotheunreasonabledistributionprogramplanningandcause.Therefore,onlyreasonabletocoldchainlogisticsdistributionschemeoptimizationdesign,caneffectivelymakeupforcoldchainlogisticssystemsexistthesedisadvantages.Andlowtemperaturedairyproductsproductionenterprisefordistributionthedemandishigher,becausethequalityguaranteeperiodofthedairyproductsisshort,thedistributionsiterelativelyscattered,scientificandreasonabledistributionoftheworkofproductionandoperationoftheenterpriseandeconomicbenefitimpact,therefore,thestudyofenterpriselogisticsdistributiondairyproductscoldchainisveryimportantsignificance.

Thispaperexpoundsindetailthecoldchainlogisticsmeaning,valuestructurecharacteristics,suchasafter,sumsupthedistributionandnormaltemperaturedistributioncharacteristicsofcoldchainthedifferencebetweentodairyproductsandtheparticularityofthecoldchainlogisticsdistributionareintroduced.TheninYi-shenglivingdairyproductsCo.,LTD.(hereinafterreferredtoastheproperlivingdairy)astheresearchobject,thedistributionofthebasicsituationarereviewed,andanalysesthepresentsituationofcoldchainlogisticsanddistribution,andfindoutthecompanyindistributioncircuitarrangement,vehicleuseefficiency,customersatisfactionandproblemsexisted.

AccordingtoYi-shengdairycoldchainlogisticsanddistributionproblems,thispaperestablishedtheproperlivingdairycoldchaindistributionoptimizationmodel,optimizationmodeltoroomtemperaturedistributionmodelasthefoundationanditsimprovement,namelytojoinloadpenaltyfunctionandmixedtimewindowlimit,makeitmoreclosetotheproperlivingdairycold-chainlogisticsanddistributionoftheactualsituation.Andthen,basedontheestablisheddistributioncharacteristicsofthemodel,basedongeneticalgorithmofparallelsearchabilityandothercharacteristicswillbeusedtosolvethecoldchaindistributionmodel.Inthegeneticalgorithm,andthespecificdesignprocess,afterthe

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山东科技大学工程硕士学位论文摘要

scientificanalysis,codingmeansUSESnaturalnumbercoding,selecttheoptimaloperationfollowkeepprinciple,crossoveroperationbyasinglepointcrossingandvariationoperationusingreversevariation.

Finally,basedontheYi-shengindustryoftheactualdistributiontask,themodelandalgorithmmodel,thecoldchaindistributionschemeinthedetailedoptimization.Inthedistributionmodelsolvingprocess,byMATLAB7.0operationsdrawtheChunxiaqiuwinterseasonfourdifferentdistributionplans.Thentheoptimizationofdistributionschemebeforeandafterwerecompared,theresultsshowthattheimprovedmodeltothedeliveryofthedesignresultmoreclosetorealitydistributionsituation,shortenthedistanceofthedistribution,improvingtheutilizationefficiencyofthevehicle.

Keywords:Properlivingdairy;Coldchainlogistics;Distribution;Geneticalgorithm;Timewindow

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山东科技大学工程硕士学位论文目录

目录

1绪论.................................................................................................................1

1.1研究背景与意义........................................................................................................11.2国内外研究现状........................................................................................................31.3研究内容与方法........................................................................................................61.4研究框架....................................................................................................................8

92相关理论分析....................................................................................................................................................................................................9

2.1冷链物流的含义及价值构成.....................................................................................92.2冷链物流配送的概念及特点...................................................................................112.3乳制品冷链物流配送的特殊性...............................................................................122.4遗传算法理论概述...................................................................................................14

233宜生乳业冷链物流配送现状分析..................................................................................................................................23

3.1公司简介..................................................................................................................233.2乳制品冷链市场现状...............................................................................................243.3宜生乳业冷链物流配送概况...................................................................................263.4宜生乳业冷链物流配送存在的问题........................................................................353.5本章小节..................................................................................................................36

4宜生乳业冷链物流配送模型建立及求解算法设计.....................................37

4.1宜生乳业冷链物流配送优化目标的确认................................................................374.2宜生乳业冷链物流配送模型的建立........................................................................384.3宜生乳业冷链配送模型的遗传求解算法设计........................................................45

495宜生乳业冷链物流配送方案的优化..........................................................................................................................49

5.1运行参数的选取......................................................................................................495.2优化后的配送方案...................................................................................................535.3优化前后方案比较...................................................................................................595.4本章小节..................................................................................................................62

636结论................................................................................................................................................................................................................................63

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山东科技大学工程硕士学位论文目录

致谢..................................................................................................................65攻读硕士期间主要成果...................................................................................6667参考文献......................................................................................................................................................................................................................6771附录A客户点之间的最短距离............................................................................................................................................71附录B客户的时间窗需求..............................................................................87..............................................................................8791附录C配送模型求解的MATLAB7.0程序..................................................................................................91

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山东科技大学工程硕士学位论文目录

Contents

........................................................................................................................11IntroductionIntroduction................................................................................................................................................................................................................................................1

1.1Backgroundandsignificance..............................................................................................................11.2Researchsituation...............................................................................................................................31.3Researchcontentandmethod.............................................................................................................61.4Researchframework...........................................................................................................................8

2Theoreticalanalysis............................................................................................................9analysis........................................................................................................................................................................................................................9

2.1Coldchainlogisticsofthemeaningandvaluestructure....................................................................92.2Cold-chainlogisticsanddistributionoftheconceptandfeatures....................................................112.3Coldchainlogisticsanddistributionoftheparticularityofdairyproducts......................................122.4Introductiontothetheoryofgeneticalgorithm................................................................................14

3Yi-shengdairycoldchainlogisticsdistributionanalysisofthestatus............................23status........................................................23

3.1Companyprofile...............................................................................................................................233.2Dairyproducts,marketsituationandcoldchain..............................................................................243.3Yi-shengdairycoldchainlogisticsdistributionsituation.................................................................263.4Yi-shengdairycoldchainlogisticsanddistributionproblems.........................................................353.5Chapter..............................................................................................................................................36

................374Yi-shengdairycoldchainlogisticsdistributionmodelandalgorithmdesigndesign................

4.1Yi-shengdairycoldchainlogisticsdistributionoptimizationtargetconfirmed...............................374.2Yi-shengdairycoldchainlogisticsdistributionmodel.....................................................................384.3Yi-shengcoldchaindistributionmodelofdairygeneticalgorithmdesign......................................45

............................495Yi-shengdairycoldchainlogisticsdistributionschemeoptimizationoptimization........................................................49

5.1Runtheparameterselection..............................................................................................................495.2Optimizeddistributionscheme.........................................................................................................535.3Beforeandafteroptimizationplans..................................................................................................595.4Chapter..............................................................................................................................................62

.......................................................................................................................636Conclusionsonclusions..............................................................................................................................................................................................................................................63.................................................................................................................................65ThanksThanks..........................................................................................................................................................................................................................66Formaster'smainachievementsachievements..................................................................................................................................................................................66

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