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1、②申請同濟大學(xué)工學(xué)碩士學(xué)位論文軌道交通橋梁阻尼器減振研究培養(yǎng)單位：一級學(xué)科：二級學(xué)科：研究生：指導(dǎo)教師：土木工程學(xué)院土木工程橋梁與隧道工程孫穎顧萍副教授二oo七年三月AbstractWhilethesixthvelocityupgradingofChinarailwayiscoming，theproblemthatsteeltrUSSbridges、“mshortspanandlightweightissufferinginefficiencyinstiffnessandgreatamplitudewillagainbefocused．Howtoeconomicallyandefficient
2、lysolvetheseU：afficsafetyproblemsandmaketheexistingagedbridgesgo01"1withtheirfunctionisrightontheschedule．TMD(TunedMassDamper)isavibrationobjectthatassembledinastructurewhoseamplitudeofvibrationneedstobereducedthe．UsingTMDtechnique，thevibrationCanberestrainedinthemainstructurebytransferringvibration
3、energytoTMD．TMDhastheeasy-understoodtheoryandithasbeenwidelyusedinmanyfields，howewcrbynOWithasnotbeenusedinconstrainingsteeltra$$bridges’vibration．ThisarticleisaimtomakeapplicationofTMDworkingontherailwaysteeltrussbridges．Itincludessomepointsasfollows：Firstly,a3DbeamelementmodalthatCantelltherealbri
4、dges’characteristicsofbearingforcewillbeconstructed．ItwilllatelybecheckedwithANSYS．whichisanall-powerfulfiniteelementsoftware．Secondly,vehiclemodal，whichissuitableforanalyzingvehicle—bridgecoupling，willbebuilt．Sinusoidalyawwavetheoryandirregularityoftracka托consideredaslateralspurringforceinthevehiel
5、e-bridgecouplinganalysis．Thirdly,fourtypesofTMDwhichcanreducelateralorverticalvibrationwilleffectinvehicle-bridgecouplingsystem．TheparametersofMTMDarealsostudiedtoanalyzetheinfluenceofreducingvibration．Fourth，amultifuactionalinterfaceprogramiscomposed,whichCallmakethecalculatingresultsvisualized．Fin
6、ally,twothrough—typesteeltrussbridgeswithspansof48mand64mareanalyzedwi也theeffectofMTMD．Agroupofoptimalparametersandsomesuggestionsarepresentedbased011theanalysisstudy．Keyword：vehicle-bridgecouplinganalyze，steeltrUSSbridges，ANSYS，Sinusoidalyawwavetheory,parametersofMTMD學(xué)位論文版權(quán)使用授權(quán)書本人完全了解同濟大學(xué)關(guān)于收集、保存、使用
7、學(xué)位論文的規(guī)定，同意如下各項內(nèi)容：按照學(xué)校要求提交學(xué)位論文的印刷本和電子版本；學(xué)校有權(quán)保存學(xué)位論文的印刷本和電子版，并采用影印、縮印、掃描、數(shù)字化或其它手段保存論文；學(xué)校有權(quán)提供目錄檢索以及提供本學(xué)位論文全文或者部分的閱覽服務(wù)；學(xué)校有權(quán)按有關(guān)規(guī)定向國家有關(guān)部門或者機構(gòu)送交論文的復(fù)印件和電子版；在不以贏利為目的的前提下，學(xué)?？梢赃m當(dāng)復(fù)制論文的部分或全部內(nèi)容用于學(xué)術(shù)活動。學(xué)位論文作者簽名：鍘、篥k刎辟
