首先介绍轨道交通的特点,并以广州城市轨道交通4号线所采用的车辆、转向架和直线电机形式为原型建立了车线耦合动力学模型,并在同样的计算条件下,通过与ADAMS中的铁路分析模块ADAMS/Rail进行比较,验证了该模型的正确性。文中以线路设计参数中的缓和曲线和超高为例,分别仿真了横向位移、横向力、脱轨系数、轮重减载率等振动特征量在不同线路设计参数情况下的动力响应。通过分析计算结果,尤其针对幅值及趋势变化,并对照传统计算方法得出的线路设计参数取值,给出了针对广州市直线电机轨道交通4号线的线路设计参数建议值。可以得到按照传统方法计算得出的线路设计参数偏于安全的结论,与采用直线电机轨道交通方式可以更好通过小半径曲线和较大坡度线路相吻合,为我国今后直线电机轨道交通建设在确定合理线路设计参数方面提供理论依据。 Firstly, the characteristics of rail transit are introduced. Based on the vehicle, bogie and linear motor used in Guangzhou Urban Rail Transit Line 4, a vehicle-vehicle coupling dynamics model is established. Under the same calculation conditions, The railway analysis module ADAMS / Rail is compared to verify the correctness of the model. In this paper, taking the easement curve and the ultra-high as an example, the dynamic responses of the vibration characteristics such as lateral displacement, lateral force, derailment coefficient and wheel load reduction rate under different circuit design parameters are simulated respectively. By analyzing the calculation results, especially for the change of amplitude and trend, and according to the value of the line design parameters obtained by the traditional calculation method, the recommended values ​​of the line design parameters for the line L4 of Guangzhou Linear Motor Rail Transit are given. It can be concluded that the circuit design parameters calculated according to the traditional method are biased towards safety. Compared with adopting the linear motor rail traffic mode to better match the small gradient curve and the larger gradient circuit, the linear motor rail traffic construction in our country can be determined in the future Reasonable circuit design parameters provide a theoretical basis.