Dynamic Analysis of Railway Vehicle Moving through Bridge with Varying Velocity

Abstract:

A dynamic model of vehicle-bridge interaction is presented considering the railway vehicle moving through bridge with varying velocity. Assuming the vehicle has a constant acceleration, the motion equations of coupled vehicle-bridge system were deduced based on DAlemberts principle and theory of Euler beam. Dynamic responses of system were analyzed both cases of the acceleration and drag acceleration for a moving car. Results show that the amplitudes of vibration of the system will enlarge sharply with the acceleration of vehicle increasing, and the maximum of responses occur when the vehicle moving at the middle point of bridge. In addition, the stiffness coefficient is one of the key factors to affect on dynamic responses of system. Generally, the suitable rigidity of structure is much important to decrease the responses and suppress the vibration of system.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 1852-1856
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.1852
• Online since: September 2013
• Authors: Huai Liang Zhu, Xue Wang, Li Feng Yu
• Keywords: Dynamic Response, Longitudinal Loads, Varying Velocity, Vehicle-Bridge System

References

[1] V V Krylov, Generation of ground vibration by acceleration and braking road vehicles, Acustica, 1996, 82(4), 642-649.

[2] Y B Yang, Y S Wu, A versatile element for analyzing vehicle-bridge interaction response, Engineering Structures, 2001, 23(5), 452-469.

DOI: 10.1016/s0141-0296(00)00065-1

[3] M A Hilal, H S Zibdeh, Vibration analysis of beams with general boundary conditions traversed by a moving force, J Sound and Vibration, 2000, 229(2), 377-388.

DOI: 10.1006/jsvi.1999.2491

[4] S T Oni, B Omolofe, Dynamic response of prestressed rayleigh beam resting on elastic foundation and subjected to masses traveling at varying velocity, J Vibration and Acoustics, 2011, 133, 041005-1-15.

DOI: 10.1115/1.4003405

[5] S H Ju, H T Lin, A finite element model of vehicle-bridge interaction considering braking and acceleration, J Sound and Vibration, 2007, 303, 46-57.

DOI: 10.1016/j.jsv.2006.11.034

[6] Y Q Sun, M Dhanasekar, A dynamic model for the vertical interaction of the rail track and wagon system, J Solids and Structures, 2002, 39, 1337-1359.

DOI: 10.1016/s0020-7683(01)00224-4