【摘要】 以长沙磁浮快线为代表的中低速磁浮交通系统的设计最高速度均为100km/h,为增强中低速磁浮交通系统在运行速度上的适用性,以长沙磁浮快线25 m跨径单线简支梁为研究对象,采用成熟的磁浮车辆动力学模型,建立考虑轨道不平顺和多列车辆编组的车—桥耦合系统模型,应用数值仿真模拟技术对研究对象进行提速仿真分析。分析结果表明:车辆时速由100 km/h提升至160 km/h后,既有长沙磁浮快线25 m跨径单线简支梁仍能满足列车运营的要求。更多还原

【Abstract】 The design of medium and low speed maglev transportation system represented by Changsha Maglev Express Line has the highest speed of 100 km/h. In order to enhance the adaptation of medium and low speed maglev traffic system in operation speed, in this paper, the 25 m-span single-track simply supported girder of Changsha Maglev Express Line was taken as the research object, and the vehicle-bridge coupling system model considering track irregularity and multi-train formation was established by using the mature maglev vehicle dynamics model. The numerical simulation technology was used to simulate and analyze the speed-up phenomenon of the research object. The results show that when the vehicle speed is increased from 100 km/h to160 km/h, the existing 25 m-span single-track simply supported beam of Changsha Maglev Express Line can still meet the requirements of train operation.更多还原