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ID:31735480
大小:329.69 KB
页数:13页
时间:2019-01-17
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1、中文3600字,2200单词,1・1万英文字符PerformanceanalysisofberthconfigurationsatcontainerterminalsAbstract:Thecontainerizedtrademarkethasbeengrowingrapidlysinceitsintroduction.Thecapacityofshipsandtheamountofcontainersbeingtransshippedatcontainerterminalsincreasessignificantly
2、.Terminalsshouldhandletheiroperationsefficientlytoprovidethenecessarycapacityandcustomerservice.Indesigningacontainerterminal,terminalmanagementhastoconsiderthechoiceforacertaintypeofberth.Inthispaper,wecomparebymeansofasimulationstudytheperformanceoftraditional
3、one-sidedmarginalberthsandindentedberths.Anindentedberthenablesquaycranestounloadandloadcontainersfrombothsidesoftheship.Asaresult,morequaycranescanworkonasingleship.Asmainperformancemeasureinthiscomparisonweusethetotalvesseloperationtimerequiredtounloadandloada
4、ship.Thistimedependsnexttocraneproductivityalsoontheefficiencyofthetransportationandstorageandretrievalprocessesinthetenninal.Wehaveperformedasensitivityanalysisinwhichwealsostudytherelationbetweentheselectionofanindentedberthandotherdesignandcontrolissuesinthet
5、erminaLKeywordsContainerterminals•Indentedberth•Performanceanalysis•Design•Simulation1IntroductionSincethe1950s,moreandmorecargoisbeingcontainerizedandexportandimportisincreasingonaglobalscale.Thehighgrowthrateofcontainerizedtradeismorerecentlyinitiatedbytheupri
6、singoftheFarEast.Thecapacityofshipshasbeenextendedupto12,000twentyfeetequivalentunitcontainer(TEU)toensurethatallcontainerscanbetransportedworldwidefromporttoport.Portsshouldberesponsiveandonguardtohandleandtotransshipthesemassivevolumesofcontainers.Dockingtimes
7、ofshipsshouldbeasshortaspossibletosatisfycarriersandtheshippersofcontainerizedgoods.Inotherwords,allterminalprocessesshouldbeperformedasefficientlyaspossible.TheseprocessesareillustratedinFig.1andcanbedescribedasfollows.Anarrivingshipwillmoorataberth.Quaycranesa
8、repositionedonthequaysattheberth.Thesecranesunloadcontainersaccordingtoanunloadplan.Next,thesecontainersneedtobetransportedtothestoragearea(i.e.,stack).Differenttypes
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