| 车辆-轨道耦合动力学在轨道下沉研究中的应用 |
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| 引用本文： | 高建敏,翟婉明. 车辆-轨道耦合动力学在轨道下沉研究中的应用[J]. 西南交通大学学报, 2007, 42(4): 431-435 |
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| 作者姓名： | 高建敏 翟婉明 |
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| 作者单位： | 西南交通大学牵引动力国家重点实验室,四川,成都,610031 |
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| 基金项目： | 教育部创新团队计划资助项目（IRT0452）;国家博士学科点基金项目（20030613011）感谢西南交通大学博士生创新基金资助. |
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| 摘 要： | 将车辆-轨道耦合振动模型和轨道累积下沉计算模型相结合,以轨道结构动力学响应参量和轨面高低不平顺状态变化作为两者间的联结纽带,从车辆-轨道耦合动力学角度研究了轨道的下沉变形特性.研究结果表明,随着轨道动荷载重复作用次数的增加,轨道下沉量逐渐累积;轨面初始不平顺对轨道下沉变化影响较大;受轨道累积下沉的影响,轮轨力、轨道结构响应加大.
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| 关 键 词： | 车辆 轨道 动力学 累积变形 下沉 不平顺 |
| 文章编号： | 0258-2724（2007）04-0431-05 |
| 修稿时间： | 2006-06-30 |
Application of Vehicle-Track Coupling Dynamics to Study on Settlement of Railway Tracks |
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| GAO Jianmin,ZHAI Wanming. Application of Vehicle-Track Coupling Dynamics to Study on Settlement of Railway Tracks[J]. Journal of Southwest Jiaotong University, 2007, 42(4): 431-435 |
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| Authors: | GAO Jianmin ZHAI Wanming |
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| Affiliation: | National Traction Power Lab. , Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | Dynamic characteristic of track settlement was investigated by combining the vehicle-track coupling vibration model and the track settlement model,and the dynamic response parameters of track structure and the irregularity in the vertical profiles of track were taken as a connection between the two models.The results of investigation show that,track settlement accumulates gradually with an increase in action times of dynamic loads on tracks,the initial track irregularity has a strong impact on track settlement,and the wheel-rail forces and track responses increase with the increase in accumulated settlements. |
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| Keywords: | vehicle track dynamics accumulated deformation settlement irregularity |
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