从理论上分析了固定轮对转向架、独立车轮转向架和后轮对独立回转新型转向架通过曲线时的受力情况。围绕轮轨横向力这一重要曲线通过性能指标比较了三种转向架曲线通过性能的优劣 ,通过比较发现后轮对独立回转新型转向架的曲线通过性能最好。然后建立了后轮对独立新型转向架车辆的动力学计算模型 ,利用数值仿真结果对理论分析进行了验证 ,发现理论分析和仿真结果基本上是吻合的 From the theoretical analysis of the fixed wheel on the bogie, independent wheel bogie and rear wheel independent rotation of new bogie through the curve when the force situation. The important curve around the wheel-rail lateral force is compared with the performance of the three bogie curves through the performance index. By comparison, it is found that the rear wheel has the best curve passing performance for the independent turning new bogie. Then, the dynamic calculation model of the rear-wheel independent new type of bogie vehicle is established, and the theoretical analysis is verified by the numerical simulation results. It is found that the theoretical analysis and simulation results are basically consistent