钢轨支承方式对地铁线路轮轨动力性能的影响
Effect of Rail Support Mode on Wheel/Rail Dynamic Interaction of Metro Lines

作者: 曹亚博 :广州地铁设计研究院有限公司,广东 广州; 凌 亮 , 关庆华 :西南交通大学牵引动力国家重点实验室,四川 成都;

关键词: 地铁轨道连续支承离散支承轨枕间距轮轨动力性能Metro Track Continue Support Discrete Support Sleeper Span Wheel/Rail Dynamic

摘要:
传统轨道结构中,钢轨铺设在均匀离散分布的轨枕上。钢轨支承方式不仅关系到轨道线路的建设造价,也对轨道车辆的运行安全与稳定有着重要的影响。本文基于车辆–轨道耦合动力学仿真,对钢轨连续及离散支承情形下地铁线路轮轨动力响应进行比较分析。计算结果表明,新型连续支承轨道结构上地铁车辆的轮轨力及钢轨的振动性能均优于传统的离散支承轨道。对于传统的钢轨离散支承地铁轨道,轨枕间距越小,车轮越过轨枕所引发的轮轨动态作用力和钢轨振动加速度越大。

Abstract: Rails are discretely supported by uniformly distributed sleepers in traditional tracks. The rail support mode not only affects the constructing cost of metro lines, but also influences the running safety and stability of metro vehicles. This paper presents a study of the wheel/rail dynamic interactions of metro lines with continually and discretely supported rails by using vehicle-track dynamics simulations. Through numerical analysis, it is found that the innovative track with continually supported rails has advantages over the traditional track with discretely supported rails for the potentialities to reduce the dynamic wheel/rail force and the vibration level of rails. For the traditional track with discretely supported rails, a smaller sleeper span results in higher dynamics wheel/rail impact force and rail vibration acceleration due to sleeper passing excitation.

文章引用: 曹亚博 , 凌 亮 , 关庆华 (2017) 钢轨支承方式对地铁线路轮轨动力性能的影响。 交通技术, 6, 121-128. doi: 10.12677/OJTT.2017.64016

参考文献

[1] 邓永权. 有轨电车列车–嵌入式轨道动态相互作用研究[D]: [博士学位论文]. 成都: 西南交通大学, 2014.

[2] 罗炯, 陈攀, 秦超红, 李成辉, 胡洋. 有轨电车新型嵌入式轨道钢轨抗倾覆性能分析[J]. 铁道标准设计, 2016, 60(4): 8-12.

[3] 江小州, 焦洪林, 杨刚, 罗炯, 赵悦, 温泽峰. 嵌入式轨道结构的声振特性参数优化研究[J]. 噪声与振动控制, 2015, 35(3): 10-14.

[4] 金学松, 王开云, 温泽峰, 李成辉. 钢轨横向不均匀支撑刚度对钢轨波磨的影响[J]. 力学学报, 2005, 37(6): 67- 79.

[5] 温泽峰. 钢轨波浪形磨损研究[D]: [博士学位论文]. 成都: 西南交通大学, 2006.

[6] 荆果, 代齐齐, 徐金辉, 王平. 轨枕间距对钢轨振动的影响研究[J]. 铁道标准设计, 2011(10): 30-32.

[7] 尚文军, 张立民, 梅桂明. 轨枕间距对钢轨模态参数影响研究[J]. 噪声与振动控制, 2008(2): 44-46.

[8] Ling, L., Han, J., Xiao, X., et al. (2015) Dynamic Behavior of an Embedded Rail Track Coupled with a Tram Vehicle. Journal of Vibration and Control, 1077546315616521.
https://doi.org/10.1177/1077546315616521

[9] Wu, X., Cai, W., Chi, M., et al. (2015) Investigation of the Effects of Sleeper-Passing Impacts on the High-Speed Train. Vehicle System Dynamics, 53, 1902-1917.
https://doi.org/10.1080/00423114.2015.1091085

[10] 凌亮. 高速列车–轨道三维刚柔耦合动力学研究[D]: [博士学位论文]. 成都: 西南交通大学, 2015.

[11] 翟婉明. 车辆–轨道耦合动力学[M]. 第三版. 北京: 科学出版社, 2007.

[12] Shen, Z.Y., Hedrick, J.K. and Elkins, J.A. (1983) A Comparison of Alternative Creep Force Models for Rail Vehicle Dynamic Analysis. Vehicle System Dynamics, 12, 79-83.
https://doi.org/10.1080/00423118308968725

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