磁浮列車引起地面振動(dòng)的數(shù)值分析.pdf

1、西南交通大學(xué)碩士學(xué)位論文磁浮列車引起地面振動(dòng)的數(shù)值分析姓名：賈曉宏申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：車輛工程指導(dǎo)教師：趙春發(fā)20090501西南交通大學(xué)碩士研究生學(xué)位論文第|I頁AbstractMaglevtrainisanewtypeofgroundtrackedtransport，whichhasfavorabledevelopmentalforegroundButtheenvironmentvibrationinducedbymaglevt

2、rainhasnotbeenpaidenoughattentionExceptforalittleoffieldteststudytheoreticalstudyandnumericalanalysisongroundvibrationinducedbymaglevtrainhasnotbeenreportedatpresentBasedonthisresearchbackground，thispaperestablishesnumer

3、icalmodelsofgroundvibrationinducedbymaglevtrain，whichmainlyaimstothehigh—speedShanghaimaglevtransportsystemandthelowspeedQingchengMountainmaglevtransportsystemThennumericalsimulationsofgroundvibrationarecarriesoutusingth

4、eANSYSandSIMPACKsoftwareBasedonthepreviousmaglevvehicle—guidewayinteractionmodel，themaglevvehicle—guidewaypiersystemmodelisestablishedbytheANSYSandSIMPACKsoftware，whichconsiderstheflexiblepiersindetailThemaglevvehiclegui

5、dewaypiersystemmodelisverifiedbysomecomparisonanalyses，andisusedtoobtaindynamicelectromagneticforcesFurthermore，thefiniteelementmodelsofgroundfoundationaccordingtotheShanghaihighspeedmaglevtransportsystemandtheQingchengM

6、ountainlowspeedmaglevtransportsystemInthemodels，soilfoundationismeshedwiththethreedimensionalfiniteelementThescatteringcharacteristicsofthecalculationdomainedgesaresimulatedthroughthevisco—elasticartificialboundaryThenth

7、enumericalmodelofgroundvibrationisestablishedThegroundvibrationresponsesproducedbythehigh／low—speedmaglevtrainsarecalculatedandcomparedtotheprevioustestresultsThecalculatedresultsofthevibrationresourcesareaccordancewitht

8、hefieldtest，whichshowsthatthenumericalmodelofgroundvibrationisreasonableComparingtothecalculatedresultsofgroundvibrationresponsesinducedbyurbantransit，itisfoundedthatthegroundvibrationcharacteristicsofbothgroundtransport