Journal of Shanghai Jiao Tong University

Journal of Shanghai Jiaotong University >

2021 , Vol. 55 >Issue 10: 1228 - 1236

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2020.101

Analysis of Cross-Platform Coupling Vibration of Ultra-High-Speed Maglev Track Beam System

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  • School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received date: 2020-04-06

  Online published: 2021-11-01

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Abstract

Track beam is an important structural component in maglev transportation. The analysis of its structural performance is quite critical, especially for the coupled dynamic analysis under the action of high-speed moving train, which is directly related to the operation safety and stability of the train. The dynamic coupling of the 600 km/h ultra-high-speed maglev track beam was studied, the train model was based on 5 rigid bodies and 30 degrees of freedom system, and the spatial coupling analysis model of the maglev track beam was established by using the Timoshenko beam element model with shear effect considered. For the specific implementation of the coupling analysis in the cross platform framework, the multi-body dynamics software Simpack, the large-scale finite element software ANSYS and the visual simulation tool MATLAB/Simulink modeling method were used, and the PID controller was introduced to actively control the whole suspension control system. The whole coupling system was divided into the main vehicle master system, the controller subsystem, and the track beam-pier subsystem. Besides, a coupled vibration model of maglev vehicle-controller-track beam was established. Taking a simply supported bridge with a span of 24.768 m as an example, the vertical dynamic response of the following cars and track beams of ultra-high-speed maglev vehicle running was studied, and the dynamic performance of the control system was evaluated. In addition, the change law of multi-parameter dynamic response considering the influence of bridge pier parametric vibration is given, which will provide technical support for the construction of ultra-high-speed maglev projects in the future.

Key words： ultra-high-speed maglev; track beam; coupled vibration; PID controller; cross-platform system

Cite this article

CAI Wentao, WANG Chunjiang, TENG Nianguan, WEN Quan . Analysis of Cross-Platform Coupling Vibration of Ultra-High-Speed Maglev Track Beam System[J]. Journal of Shanghai Jiaotong University, 2021 , 55(10) : 1228 -1236 . DOI: 10.16183/j.cnki.jsjtu.2020.101

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