列车移动轴荷载作用下的地面振动及隔振研究  

Moving train axle-load induced ground vibration and mitigation

作　　者：和振兴[1] 翟婉明[1] 杨新文[1] 陈希成[1] 

机构地区：[1]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《铁道科学与工程学报》2007年第5期73-77,共5页Journal of Railway Science and Engineering

基　　金：四川省青年科技基金资助项目(2007Q14-047);教育部创新团队计划项目(IRT0452)

摘　　要：基于动力学理论和三维有限单元分析方法,建立列车移动轴荷载作用下的三维地面振动数值分析模型。以3辆编组的列车为例,考虑列车速度的影响,分析了振动在大地中的传播特性和隔振沟的减振效果。结果表明,列车移动轴荷载引起的竖向地面振动比横向振动大,隔振沟能对竖向地面振动起到较好的减振效果。According to the dynamic theory, using finite element method, a three - dimensional numerical analysis model was established to analyze the response of ground vibration generated by moving axel loads of the train. The characteristics of the ground vibration propagation and the reduction effectiveness of the open trench were studied considering the influence of speed of the train composed by three vehicles. The results show that the vertical ground vibration is greater than the lateral ground vibration. The open trench has a good reduction effectiveness for the vibration generated by moving axle- load.

关 键 词：地面振动 有限元 高速列车 隔振沟 

分 类 号：U126[交通运输工程]