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ID:36504307
大小:2.20 MB
页数:59页
时间:2019-05-11
《基于路段的空车调配优化模型研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、北京交通大学硕士学位论文基于路段的空车调配优化模型研究姓名:朱海狍申请学位级别:硕士专业:系统工程指导教师:林柏梁20080501ABSTRACTTheemptywagonsdistribution,beingthemainpartoftherailwaytransportationplan,isanimportantmeanstorealizeeffectivedistributionoftherailwaywagonsresource,toinsurerailwayproportiontran
2、sportation,toincreasetherateofrailwaywagonsandtomaketransportationproductioninorder.Atpresent,therealeapproximately500,000freightwagons,andtheaverageratioofemptywagonkilometerstoloadedwagonkilometersisabout30%.themaxratioperhaps50%.Tothoserailwayenter
3、prises,itnowbecomesabigproblemwhichattractsmoreandmoreattentiontofindouthowtoincreasetheefficiencyoftheemptywagonsandthecompetitionabilityofrailwayintransportationmarket,whichisaimofrailwaymarket-orientedreform.Affectedbytoomuchsubjectiveandobjectivef
4、actors,empty-car-distributionproblemhasnotbeensolvedthoroughlyonboththeoryandpractice,whichremainsallimportanttheoreticalandpracticalresearchtask.ThispaperanalysedthecharacteristicsofthetraditionaloptimizationmodelsofemPtycardistributionandpointedoutt
5、hosedeficiency,andthenconstructedaoptimizationmodelofemptycardistributionwhichisclosetoourrailwayoperatingfeatures.Atlast,thispaperprovedthatthemodelisbetterandfeasiblebysimulatinganexample.Therearethreemaininnovativeaspectsinthispaper,whichalepresent
6、edasfollows:1.Themodelpointedoutinthispapercansolvetheproblemofemptycardistributionwhentheshortestrouteintheweb;2.ThemodelpointedoutinthispaperCanfindouttheroutethroughwhichtheemptycarsgettothestationswhichneedsomeemptycars;3.Themodelpointedoutinthisp
7、aperCansolvetheproblemofemptycal"distributionwhentherealesomerestrictionswhichcomefromthecarryingcapacityoflink.KEYWORDS:emptycardistribution;link;car-flowrouting;carryingcapacityCLASSNO:学位论文版权使用授权书本学位论文作者完全了解北京交通大学有关保留、使用学位论文的规定。特授权北京交通大学可以将学位论文的全部或部
8、分内容编入有关数据库进行检索,并采用影印、缩印或扫描等复制手段保存、汇编以供查阅和借阅。同意学校向国家有关部门或机构送交论文的复印件和磁盘。(保密的学位论文在解密后适用本授权说明)学位论文作者签名:夯稚签字F1期:万衫年6月厂,只导师签名:签字同期:砂矿年/月J广日独创性声明本人声明所呈交的学位论文是本人在导师指导下进行的研究工作和取得的研究成果,除了文中特别加以标注和致谢之处外,论文中不包含其他人已经发表或撰写过的研究成果,也不包含为获得北京交通大学或其他教育机构的学位或证书而使
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