Test research of dynamic behavior of medium and low speed maglev train-rail-girder system

Andong Zheng; Guofeng Zeng; Ziping Han; Junhu Gong

doi:10.1117/12.2614191

10 November 2021 Test research of dynamic behavior of medium and low speed maglev train-rail-girder system

Andong Zheng, Guofeng Zeng, Ziping Han, Junhu Gong

Proceedings Volume 12050, International Conference on Smart Transportation and City Engineering 2021; 120504Q (2021) https://doi.org/10.1117/12.2614191
Event: 2021 International Conference on Smart Transportation and City Engineering, 2021, Chongqing, China

Abstract

In order to study the dynamic behavior of the medium and low speed Maglev train-rail-girder system with different bridge structure forms and concrete or steel girders on the coupling vibration, a series of dynamic tests were carried out on Shanghai Lin-gang test line, dynamic tests were carried out to study the dynamic behavior of train, girders and F rail. The results show that within the test speed range, the acceleration and deflection of both concrete and steel girders increase with the increase of the speed, and the acceleration of steel girder is much greater than that of concrete girder. The F rail deflection of the concrete girder has no obvious correlation with the speed, but the acceleration increases with the increase of the speed. However, the F rail deflection of the steel girder increases with the increase of the speed. The vertical acceleration of F rail on the steel girder is greater than that on the concrete girder. When the train is running on the steel girder, the vertical acceleration of the 1# levitation frame is greater than the lateral acceleration and both increase with the increase of the speed. The vertical acceleration of the train body is far less than the vertical acceleration of the levitation frame, which means the air spring has a good isolation function. The results of the experiment can provide a reference for the formulation and modification of the specification in the future.

Citation Download Citation

Andong Zheng, Guofeng Zeng, Ziping Han, and Junhu Gong "Test research of dynamic behavior of medium and low speed maglev train-rail-girder system", Proc. SPIE 12050, International Conference on Smart Transportation and City Engineering 2021, 120504Q (10 November 2021); https://doi.org/10.1117/12.2614191

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