A numerical simulation study of a real-time hybrid test for high-speed maglev train-bridge coupling vibration
WANG Zhen1, HOU Jinyou1, WU Bin1, YANG Ge1, WANG Tao2, XU Guoshan3, DING Yong3
1.School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China;
2.School of Architecture and Civil Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China;
3.School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
Abstract：High-speed maglev train is a new and promising type of high-speed transportation, and has gradually become a research hotspot. When the train passes a bridge pier, owing to the pier vertical stiffness far greater than other bridge sections, there is an impact interaction between the train and the bridge. This impact is very unfavorable to the suspension control and even affects the operational safety. In order to study the coupling vibration, a real-time hybrid test for this coupling vibration between a high-speed maglev train and a bridge is proposed in this paper. This paper first describes the principle and flow diagram of this method, and then establishes a numerical simulation model of the test system, and carries out numerical simulation analysis. The studies show that the simulation results of hybrid test are fairly good as a whole, and the real-time hybrid test for high-speed maglev train-bridge coupling vibration is feasible; however, it is still difficult to accurately reproduce the impact interaction, which requires demanding dynamic performance of the loading system. The study results can provide some reference for the implementation of real-time hybrid test for train-bridge coupling vibration.
王贞1，侯金佑1，吴斌1，杨格1，王涛2，许国山3，丁勇3. 高速磁浮列车-桥梁耦合振动实时混合试验的数值仿真研究[J]. 振动与冲击, 2022, 41(8): 270-276.
WANG Zhen1, HOU Jinyou1, WU Bin1, YANG Ge1, WANG Tao2, XU Guoshan3, DING Yong3. A numerical simulation study of a real-time hybrid test for high-speed maglev train-bridge coupling vibration. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(8): 270-276.
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