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| Dynamic model of vertical vehicle-subgrade coupled system under secondary suspension | |
| 作者姓名： | 梁波 罗红 马学宁 |
| 作者单位： | School of Civil Engineering and Architecture Chongqing Jiaotong University，Chongqing 400074，P. R. China，School of Automobile Engineering，Chongqing Jiaotong University，Chongqing 400074，P. R. China，School of Civil Engineering，Lanzhou Jiaotong University，Lanzhou 730070，P. R. China |
| 基金项目： | 重庆市教委资助项目;重庆市自然科学基金;重庆交通大学户动基金 |
| 摘 要： | As it is known, track transportation can be divided into track system above and track system below. While the train is moving, the parts above and below are interacted and influenced. Therefore, in fact, the problem of track transportation is the match between the vehicle and the railway line system. In this paper, on a basis of dynamic analysis of the vehicle-subgrade model of vertical coupled system under primary suspension, utilizing track maintenance standard and simulating track irregularity excitation, the dynamic interaction of vehicle-track-subgrade system is researched in theory and dynamic model of the vertical vehicle-track-subgrade coupled system under secondary suspension is established by compatibility condition of deformation. Even this model considers the actual structure of a vehicle, also considers vibration characteristic of the substructure of track including subgrade and foundation. All these work want to be benefit for understanding and design about the dynamic characters of subgrade in high speed railway. |
| 关 键 词： | 第二系弹簧悬挂 媒介物 动态模型 轮轨关系 |
| 收稿时间： | 16 July 2006 |
| 修稿时间： | 2006-07-162006-12-19 |
Dynamic model of vertical vehicle-subgrade coupled system under secondary suspension |
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| Bo Liang,Hong Luo,Xue-ning Ma.Dynamic model of vertical vehicle-subgrade coupled system under secondary suspension[J].Applied Mathematics and Mechanics(English Edition),2007,28(6):769-778. | |
| Authors: | Bo Liang Hong Luo Xue-ning Ma |
| Institution: | 1. School of Civil Engineering and Architecture, Chongqing Jiaotong University,Chongqing 400074, P. R. China 2. School of Automobile Engineering, Chongqing Jiaotong University,Chongqing 400074, P. R. China 3. School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, P. R. China |
| Abstract: | As it is known, track transportation can be divided into track system above and track system below. While the train is moving, the parts above and below are interacted and influenced. Therefore, in fact, the problem of track transportation is the match between the vehicle and the railway line system. In this paper, on a basis of dynamic analysis of the vehicle-subgrade model of vertical coupled system under primary suspension, utilizing track maintenance standard and simulating track irregularity excitation, the dynamic interaction of vehicle-track-subgrade system is researched in theory and dynamic model of the vertical vehicle-track-subgrade coupled system under secondary suspension is established by compatibility condition of deformation. Even this model considers the actual structure of a vehicle, also considers vibration characteristic of the substructure of track including subgrade and foundation. All these work want to be benefit for understanding and design about the dynamic characters of subgrade in high speed railway. |
| Keywords: | secondary suspension vehicle subgrade dynamic model coupled analysis |
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