【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。更多还原

【Abstract】 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.更多还原