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| 不平顺条件下高速铁路轨道振动的解析研究 | |
| 引用本文： | 冯青松,雷晓燕,练松良. 不平顺条件下高速铁路轨道振动的解析研究[J]. 振动工程学报, 2008, 21(6) |
| 作者姓名： | 冯青松 雷晓燕 练松良 |
| 作者单位： | 1. 同济大学道路与交通工程教育部重点实验室,上海,201804;华东交通大学土建学院,江西,南昌,330013 2. 华东交通大学土建学院,江西,南昌,330013 3. 同济大学道路与交通工程教育部重点实验室,上海,201804 |
| 基金项目： | 国家重点基础研究发展计划(973计划) ， 国家自然科学基金 ， 江西省自然科学基金 |
| 摘 要： | 为了分析不平顺条件下高速铁路轨道结构振动,推导了移动车辆在轮对处和轨道结构在轮轨接触点处的柔度矩阵,考虑移动轴荷载和轨道不平顺,建立了移动车辆-轨道垂向耦合振动的解析模型.模型中,移动车辆考虑为弹簧和阻尼器连接的多刚体系统;有碴轨道结构模拟为连续弹性3层梁;轮轨间考虑为线性赫兹接触.算例分析了单台TGV高速动车引起的有碴轨道结构振动,得到轨道不平顺引起的动态轮轨力和轨道各部分的最大振动加速度,研究了列车速度、轨道不平顺以及轨下垫板及扣件、道床和路基等轨下基础刚度对轨道振动的影响.计算表明:随着列车速度和轨道不平顺的增加,轨道结构的振动响应不断增大;轨下基础刚度对轨枕和道床的振动影响较大,对钢轨振动的影响较小. |
| 关 键 词： | 高速铁路 轨道不平顺 轨道振动 解析研究,车辆一轨道耦合 |
Vibration analysis of high-speed railway tracks with geometric irregularities |
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| FENG Qing-song,LEI Xiao-yan,LIAN Song-liang. Vibration analysis of high-speed railway tracks with geometric irregularities[J]. Journal of Vibration Engineering, 2008, 21(6) | |
| Authors: | FENG Qing-song LEI Xiao-yan LIAN Song-liang |
| Affiliation: | FENG Qing-song1,2,LEI Xiao-yan2,LIAN Song-liang1(1.Key Laboratory of Road , Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 201804,China,2.School of Civil Engineering,East China Jiaotong University,Nanchang 330013,China) |
| Abstract: | In order to analyze vibration of high-speed railway tracks with geometric irregularities,receptances of the vehicle at the wheelsets and the track at the wheel-rail contact points are derived,an analytical model for moving vehicle-track vertical coupling vibration is established by considering moving axle loads and track irregularities.In the model,moving vehicle is modeled as multiple rigid body system connected with spring and damper,ballasted track structure is simulated by the continuous elastic three l... |
| Keywords: | high-speed railway track irregularities track vibration analytical research vehicle-track coupling |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |