Abstract
In order to explore the middle-speed adaptability of the rail beams including 25 m Changsha maglev simply-supported girder, the finite element dynamic analysis models for maglev rail beams was established firstly based on the finite element theory, of which the self-oscillation characteristics are analyzed. The dynamic model of middle-speed maglev train with 120 degrees of freedom is set up based on multi-body dynamics theory. Then the maglev train-bridge-controller coupled model is established considering the PID active suspension control as levitation force. Based on the vehicle-bridge-controller coupled model, the vibration responses of the vehicle-bridge system are further studied at middle speed with track beams which are taken as the structure under the rail. The simulation speed ranges from 100 km/h to 180 km/h. Then the vertical vibration responses of bridge and car body are calculated and analyzed.
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Acknowledgements
This work was supported by the Sichuan Science and Technology Program (Grant No. 2018GZ0056) and National Key Research and Development Program of China (Grant No. 2016YFB1200600).
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Chen, Z., Yin, J., Yang, J., Feng, D. (2020). Dynamic Modeling and Coupled Vibration Analysis of Middle-Low Speed Maglev Vehicle-Bridge-Controller System. In: Klomp, M., Bruzelius, F., Nielsen, J., Hillemyr, A. (eds) Advances in Dynamics of Vehicles on Roads and Tracks. IAVSD 2019. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-38077-9_107
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DOI: https://doi.org/10.1007/978-3-030-38077-9_107
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