Simulation of train–bridge interaction under wind loads: a rigid-flexible coupling approach

Xuhui He, Yongbin Gai and Teng Wu

International Journal of Rail Transportation, 2018, vol. 6, issue 3, 163-182

Abstract: This study proposed a rigid-flexible coupling method to simulate the train–bridge vibration under the actions of wind loads. Specifically, the numerical models of a rigid train and a flexible bridge were first established in the Multibody Dynamics Software SIMPACK and the Finite Element Software ANSYS, respectively. The bridge model was then integrated, using the virtual rigid body as an intermediate object, into the SIMPACK as a flexible body through the interface module FlexModal. The wind loads were applied to the coupled train–bridge system in the SIMPACK, and then the dynamic responses were obtained. The accuracy and efficiency of the proposed rigid-flexible coupling approach was verified by calculating the responses of the train–bridge system under various train speeds and comparing the results with those from FlexTrack module. The Xijiang Bridge on the Nanning–Guangzhou railway was employed as a case study to evaluate the dynamic indices under various combinations of the train and wind speeds.

Date: 2018
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DOI: 10.1080/23248378.2017.1415170

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International Journal of Rail Transportation is currently edited by Wanming Zhai and Kelvin C. P. Wang

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