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    Abstract
2014 (Vol. 7, Issue: 6)
Article Information:

A Versatile Method for Analyzing the Influence of Track Irregularity on Vehicle-track-bridge Coupled System

Zhang Hui, L.Q. Yao, Zhao Qian-Feng and Wang Huan-Ran
Corresponding Author:  L.Q. Yao 

Key words:  Finite Element, Hamilton principle, track irregularities, , , ,
Vol. 7 , (6): 1156-1162
Submitted Accepted Published
March 04, 2013 March 29, 2013 February 15, 2014
Abstract:

A versatile finite element method is applied to analyze the dynamic responses of railway track and bridges under moving railway vehicles. The whole system is divided into two subsystems. The vehicle and railway track are regarded as an integrated subsystem while the railway track and bridge are regarded as the other subsystem. The equations of motion for the two elements are directly derived by means of Hamilton principle. After by assembling the stiffness, damping, mass matrices and the vectors of nodal loads of all elements, the global equations of motion are obtained and solved by Newmark-&beta method. Numerical examples demonstrate that the method is versatile and correct while dealing with the dynamic responses of vehicle-track-bridge coupled system. These examples also demonstrate that the influence of the track irregularities on the intergraded system is very significant and that the case of several different track irregularities existing at the same time plays more significant on the dynamics responses than the case of one track irregularity.
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  Cite this Reference:
Zhang Hui, L.Q. Yao, Zhao Qian-Feng and Wang Huan-Ran, 2014. A Versatile Method for Analyzing the Influence of Track Irregularity on Vehicle-track-bridge Coupled System.  Research Journal of Applied Sciences, Engineering and Technology, 7(6): 1156-1162.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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