欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
分析了具有轮径差转向架的运动状态，建立了车辆动力学模型，以某高速车辆在直线上运行为例，采用德国低干扰谱，选择车辆运行速度为300km·h^-1，研究了轮径差对行车安全性的影响趋势，对比了转向架前后轮对同相轮径差与反相轮径差的影响程度。分析结果表明：所有的轮径差都会影响行车安全性，随着轮径差的增大，车辆运行安全性指标逐渐变差，反相轮径差对行车安全性影响较大，同相轮径差的影响较小。由此可知，在实际检修中应尽量减小轮对的轮径差，尤其应严格控制转向架前后轮对反相轮径差到允许范围之内，以保证车辆系统的行车安全性。
英文摘要：
The running state of the bogie with wheel-diameter difference was analyzed, and a dynamics model of vehicle was set up. As an example of a high-speed vehicle running on the tangent tracks with Germany low-disturbing spectrum at 300 km.h^-1, the influence of wheel-diameter difference on the running security of vehicle was analyzed by simulation, and the influences of the same phase＇s and opposite phase＇s wheel-diameter differences on the running security were compared. Analysis result shows that all of wheel-diameter differences affect the running security of vehicle system, the running security is getting worse with the increase of wheel-diameter difference, the opposite phase＇s wheel- diameter difference has larger influence, and the same phase＇s wheel-diameter difference has less influence. So in order to ensure the running security of vehicle system, the wheel-diameter difference should be minished by all means, especially, the opposite phase＇s wheel-diameter difference should be strictly controlled under permitted scope. 6 figs, 10 refs.
同期刊论文项目
同项目期刊论文
位置：