Car And Tunnel Coupling Analysis Based On ADAMS

At present in our country, high-speed rail and the subway construction has entereda rapid development in the new period, has quite a few scholars and research institutionsat home and abroad for underground structure on performance are studied, including thetunnel vibration research is the significant means to ensure the safe and stable operationof railway.In the subway system, metro vehicle, the dynamic interaction of wheel and railsystem produces vibration, the vibration is passed to the tunnel structure, and further tothe surrounding strata, usually the vibrations of the tunnel structure dynamic impact,such as making its structure component fatigue, reduce its strength and stability., on theother hand, the vibration of the structure of the stationarity and safety of the runningvehicle on which the influence, make the evaluation of structural dynamic designparameters are reasonable or not an important factor. As a result, the dynamic couplingvibration of vehicle and the tunnel structure system of the comprehensive study of theinteractions between, can on the dynamic properties of structure analysis and safetyevaluation, so as to determine the reliability of using them in a variety of conditions, thedevelopment of the structure of the tunnel under moving load, etc have very importanttheoretical meaning and engineering value.Based on this background, on the basis of extensive research, refer to the relatedliterature at home and abroad, the vehicle running in the tunnel coupling vibrationproblem of dynamic response analysis. In this paper, the research content mainlyincludes the following aspects:①Introduced the selected topic research significance, purpose and the currentresearch status of car tunnel coupling.②More comprehensive introduces the basic principle and basic compositionelements of multi-body dynamics, and vehicle model is established in ADAMSenvironment.③The establishment of the finite element model of tunnel is introduced system,as well as after model establishment and the coupling of the vehicle model in softwarerealization process.④In software ADAMS, vehicle by vehicles and the coupling of the tunnel and thesimulation analysis of the tunnel, analysis and study the vehicle dynamic response under the condition of tunnel in different research state, can provide certain reference for therelevant aspects of the analysis in the future.⑤In the extensive research, refer to the related literature at home and abroad onthe basis of the vibration of the vehicle tunnel are summarized influence andcountermeasure and the measure to reduce the train vibration.