Vibration Characteristics and Transmission of High-speed Track Structure

被引：0
|
作者：
Xin X. [1 ]
Ren Z. [1 ]
Li X. [2 ]
机构：
[1] College of Mechanical and Electronic Control, Beijing Jiaotong University, Beijing
[2] School of Mechanic Engineering, Jiangsu Normal University, Xuzhou
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2020年 / 56卷 / 20期
关键词：
Co-simulation; Coupled model; Flexible track; Vibration characteristics;
D O I：
10.3901/JME.2020.20.146
中图分类号：
学科分类号：
摘要：
With the rapid development of high-speed railway, ballastless slab track is widely used. By using finite element analysis software ANSYS and multi-body dynamics software SIMPACK, a vehicle-flexible track coupled dynamic model is established. The safety and stability of vehicle operation are analyzed and the displacement, acceleration, acceleration power spectral density, load characteristics of the track system are studied. The effects of different speeds on the track vibration and the main influencing factors of the system vibration are also studied. The results show that the vertical vibration displacement, acceleration and load of the track structure decrease from top to bottom, and the attenuation amplitude from rail to track plate is larger than that from slab to base; the vibration energy of the track system is mainly concentrated in the range of 0-150 Hz, while the rail vibration energy more than 300 Hz is basically not transmitted downward through the fastener attenuation, and peaks of power spectral density shift to the right with the speed increases; when the vehicle runs at the speed of 300 km/h, the peak frequencies of the rail vertical acceleration power spectral density less than 100 Hz are mainly related to the rail natural property, and peak frequencies greater than 100 Hz which present multiple relationship are related to the inherent property of track system. The co-simulation improves the research efficiency and the vertical vibration characteristics and transmission law of vehicle track system are revealed which provide a scientific evidence for engineering application. © 2020 Journal of Mechanical Engineering.
引用
收藏
页码：146 / 154
页数：8
相关论文
共 22 条
  • [1] CAI Chengbiao, YAN Hua, YAO Li, Study on dynamic performance of ballastless Track of Suining-Chongqing railway, Journal of Railway Engineering Society, 107, 8, pp. 39-44, (2007)
  • [2] VEBIC B., Investigating the dynamic behavior of rigid track, Railway Gazette International, 153, 9, pp. 585-586, (1997)
  • [3] ADAM D, BRANDL H, PAULMICHL I., Dynamic aspects of rail tracks for high-speed railways, International Journal of Pavement Engineering, 11, 4, pp. 281-291, (2010)
  • [4] ZHAI Wanming, Vehicle-track coupled dynamics, (2015)
  • [5] ZHAI Wanming, Vibration simulation analysis of railway vehicles on rigid and elastic track models, Railway Vehicle, 1, pp. 15-20, (1994)
  • [6] WANG Kaiyun, DING Guofu, ZHAI Wanming, Simulation system of vehicle-track spatial coupling dynamics, Journal of System Simulation, 16, 12, pp. 2737-2740, (2004)
  • [7] CAI Chengbiao, ZHAI Wanming, WANG Kaiyun, Dynamics simulation of interactions between high-speed train and slab track laid on bridge, China Railway Science, 25, 5, pp. 57-60, (2004)
  • [8] CHEN Guo, ZHAI Wanming, CAI Chengbiao, Et al., Comparison on vertical random vibration responses of traditional vehicle model with vehicle-track coupling model, Journal of the China Railway Society, 21, 5, pp. 70-74, (1999)
  • [9] LI Yuxiang, Based on the SIMPACK and ANSYS subgrade CRTSⅠ slab track train running safety and comfort in reliability analysis, (2012)
  • [10] XIANG Jun, HE Dan, Analysis model of vertical vib- ration of high-speed train and Bögle slab track system, Journal of Traffic and Transportation Engineering, 7, 3, pp. 1-5, (2007)
123