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ID:33761851
大小:10.80 MB
页数:67页
时间:2019-03-01
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1、西南交通大学硕士研究生学位论文第1l页AbstractMaglevtransportation,withitsadvantagesofenvironmentalprotection,energysaving,andhighefficiency,hasbecomeoneofthemostcompetitivegreengroundtransportationsystemsinthe21stcentury.Becauseoftheexcellenttechnicalandeconomicquality,lowandmediu
2、mspeedmaglevtrainisidealforrapidextensionlineofcities、Ⅳithmedium.sizedpassengers,especiallyusedasthespecialfastlineconnectingdowntownwiththeairports.suburbs,industrialareas,andtouristattractions.Alsoitisappropriatefortrafficlinesoflargeandmedium-sizedcitieswitllc
3、omplextopographyandcrowedbuildings.Inrecentyears,China’Sindependentlyself-developedmaglevtechnologyhasstartedbeingputintoengineeringuse.Maglevlinesgenerallyadoptenclosedelevatedbridges,butthereisstillnocodeonlowandmediumspeedmaglevtransportationinOurcountry,SOiti
4、snecessaryandsignificanttodoresearchonthekeytechnologyoflowandmediumspeedmaglevguidewaygirder.Basedonthemethodofexperimentalresearchandanalyzingcalculation,thethesistakesZhuzhoulowandmediumspeedmaglevguidewaygirderasanexample,andconductsthefollowingstudies:1、Rele
5、vantinformationaboutthecurrentsituationathomeandabroadaswellastllehistoryanddevelopmentofmaglevguidewaygirderhasbeencollectedextensively.2、Intensivecomparisonsandanalysisaboutguidewaygirderstiffnesslimitsofdifferentcodeshavebeencarried,testsoflowandmediumspeedmag
6、levguidewaygirderstiffnesshavebeenconductedundersixkindsofconditions,andresearchesofguidewaygirderfrequencyandvibrationinpulseincentivemodehavebeentakentotesttherationalityoflowandmediumspeedmaglevguidewaygirderstiffness.3、Drivingdynamicresponseshavebeentestedbas
7、edonlowandmediumspeedmaglevguidewaygirder.Accordingtothetestandcalculationresultsofnumericalanalysis,therationalityoflowandmediumspeedmaglevguidewaygirder’Sdynamiccoefficienthasbeenverifled.4、Basedonthecurrenttypicalmaglevguidewaygirdersections,maglevguidewaygird
8、erswithdifferentsectionsanddifferentspansarebuiltbyfiniteelementprogram.Thentheirstiffnessanddynamiccharacteristicsarecomparedandanalyzed.Accordingtoresults,西南
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