中文摘要：

建立了地铁车辆车轮与曲线区段钢轨接触的有限元模型，应用有限元参数二次规划法分析这一三维轮轨接触问题．对不同轴重和横向力作用下的轮轨接触模型分别进行计算，得出了大量的轮轨接触应力的分布及变化规律．这些计算结果将有助于找到缓解钢轨侧磨的方法．

英文摘要：

A finite element method contact problem of the underground vehicles＇ wheelset and rails in curvilinear section is constructed, three -dimensional contact problem of the wheel/rail system is analyzed using the finite element parametric quadric programming method. The contact models under different axle loads and transverse forces are calculated separately and the wheel/ rail contact stress distribution and rules are obtained. These results can help find the method to slower the rail side abrasion.