Bridge-Train-Passenger Coupling Vibration and Riding Comfort Analysis of Urban Track Line

被引:0
|
作者
Wang S. [1 ]
Guo W. [2 ]
Cao M. [2 ]
Li Y. [3 ]
机构
[1] School of Science, Beijing University of Civil Engineering and Architecture, Beijing
[2] School of Civil Engineering, Beijing Jiaotong University, Beijing
[3] Beijing Mass Transit Railway Operation Co.,Ltd., Beijing
关键词
bridge; passengers; track line; vehicle; vibration;
D O I
10.16450/j.cnki.issn.1004-6801.2023.03.023
中图分类号
学科分类号
摘要
The purpose of this research is to improve the running safety and riding comfort of urban rail transit. A typical continuous box bridge in the Beijing Metro line 5 is selected. A coupling vibration model of bridge-ve⁃ hicle-passengers is established,and the differential equations of motion are deduced,then a corresponding calcu⁃ lating program is written. The dynamic deflections of the bridge,train,and passengers are calculated exactly. The changing safety of the maximum values of each responses,and the running stability and safety indexes of the train are analyzed,too. The reliability of the simulation model and calculating program are verified by the monitored data. The results proved that the selected bridge is in pretty well working conditions. The vibrating ac⁃ celeration,lateral forces,offload factor,and derail factor of train are quite perfect at current running speed. There are obvious differences between passengers' vibration responses and the vehicles',and there is a little hys⁃ teresis. Dynamic responses of passengers sitting in the middle of the carriage are a little smaller than that in both end,and those sitting in the middle carriage are smaller than in the end carriages. © 2023 Nanjing University of Aeronautics an Astronautics. All rights reserved.
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页码:584 / 592and625
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