Abstract
Ballastless track is wildly employed in high-speed railways as its high stability, low irregularity and low maintain cost. However, uneven settlement at the roadbed will impact the railway’s stability, passenger’s comfort and service life of the track. Amount of models are established to investigate the vibration under uneven settlement and suggest the control standard. However, their simplification about the interaction in settlement zone are unreasonable in some cases. In this research, a vertical vehicle-track coupled model is introduced, in which the vehicle is modeled as multi-rigid body and the track is modeled as multilayer plane beams. The model is validated by track vibration measured in Beijing-Tianjin Intercity Passenger Line. To simulate the vehicle-track interaction under uneven settlement accurately, the settlement is divided into three patterns. In contact pattern, the displacement of track-subgrade interface is assumed to be continuous in settlement zone, while in contact pattern the displacement is assumed to be discontinuous. And in partial contact model, the track-subgrade interface is consider to be partial contact in settlement zone and a proposed trail-iterate algorithm is adopted to correct the contact area and the contact force in each integral step during the calculation. Based on proposed model, the dynamic response in three patterns are introduced. Result shows that the conventional model will obviously overrate the dynamic responses when the settlement is in the scope of partial contact pattern and gapped pattern.
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References
Huanping Song. (2011). Theoretical and field test analysis of high-speed train and slab track coupling interaction [D]. Zhejiang University, Master.
Huanping Song, Xuecheng Bian, Jianqun Jiang, Yunmin Chen. (2012). Correlation between subgrade settlement of high-speed railroad and train operation speed [J]. Journal of Vibration and Shock, 31(10):134–140.
Chenbiao Cai, Peng Xu. (2010). Dynamic analysis of key design parameters for ballastless track of high-speed railway [J]. Journal of Southwest Jiaotong University, 45(4):493–497.
Chenbiao Cai, Wanming Zhai, Yunkai Wang. (2006). Calculation and assessment analysis of the dynamic performance for slab track on Sui-Yu Railway [J]. China Railway Science, 27(4):17–21.
Zhang, X., Burrow, M., & Zhou, S. (2016). An investigation of subgrade differential settlement on the dynamic response of the vehicle–track system. Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail & Rapid Transit, 230.
Wang, P., Chen, R., Chen, X. P., Wang, P., Chen, R., & Chen, X. P. (2010). Dynamic Assessment of Ballastless Track Stiffness and Settlement in High-Speed Railway. Joint Rail Conference (pp. 203–207).
Acknowledgements
The research works involved in this paper are supported by the Natural Science Foundation of China (No. 51678524 and No. 51561130159).
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© 2018 Springer Nature Singapore Pte. Ltd. and Zhejiang University Press
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Duan, X., Hu, J., Bian, X., Jiang, J. (2018). Dynamic Interaction of Vehicle-Track Coupled System Under Different Patterns of Uneven Settlement. In: Bian, X., Chen, Y., Ye, X. (eds) Environmental Vibrations and Transportation Geodynamics. ISEV 2016. Springer, Singapore. https://doi.org/10.1007/978-981-10-4508-0_52
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DOI: https://doi.org/10.1007/978-981-10-4508-0_52
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