Dynamic Analysis of Wind-Vehicle-Bridge Coupling System during the Meeting of Two Trains

• Published in: Advances in structural engineering Vol. 16; no. 10; pp. 1663 - 1670
• Main Authors: Li, Yong-Le, Xiang, Huo-Yue, Wang, Bin, Xu, You-Lin, Qiang, Shi-Zhong
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01.10.2013
• Subjects: Aerodynamic coefficients; Dynamical systems; Dynamics; Joining; Meetings; Trains; Vehicles; Vibration; coupling vibration; WVB system; wind tunnel test; aerodynamic coefficients; meeting of two trains
• ISSN: 1369-4332; 2048-4011
• DOI: 10.1260/1369-4332.16.10.1663

In order to investigate the characteristics of the vibration of the wind-vehicle-bridge (WVB) coupling system during two trains meeting each other, the dynamic response of the WVB system has been analyzed when the two trains meeting on a large span suspension bridge using the self-developed software BANSYS. Particularly, the aerodynamic coefficients of the bridge and the two trains before and after the meeting are determined through wind tunnel tests. It is shown that the wind loads and the responses of the leeward vehicle change abruptly in the meeting process compared with the case with a single train. And the responses of the leeward vehicle increase with the growing of wind speed and vehicle speed, and decrease with the enlarging of the lateral distance between the two trains. The processes of two trains meeting each other are the control factors for the WVB coupling system.