中文摘要：

建立了面向线路线形分析的车辆-线路动力相互作用模型,并开发了相应程序。其次,分析了适用于线路线形动力仿真的乘坐舒适度评价指标和方法。最后,对最小坡段长度和圆曲线半径对乘坐舒适度影响进行了分析,从动力学角度得到了高速铁路线形核心参数合理取值。研究成果可为高速铁路线形参数合理选取和线路方案动力评价及优化提供理论依据和分析手段。

英文摘要：

A model of dynamic interaction between vehicles program was developed. Then, the ride comfort evaluation and tracks was established, and the corresponding method and index oriented to dynamic analysis of track alignment was compared and analyzed. Lastly, the effects of the minimum radius of circular curve and the minimum length of grade section on the ride comfort were investigated, and the reasonable ranges of the parameters were put forward. This research method and results of track alignment can be applied to defining track alignment design parameters and optimizing track alignment design, etc.