磁流体耦合轮对转向架动力学性能的研究

Dynamic Performances of the Bogie with Magnetic Fluid Coupled Wheelsets

建立了磁流体耦合轮对转向架车辆的动力学计算模型。利用数值模拟方法对转向架的动力学性能进行了动态仿真计算,找出了磁流体耦合轮对转向架前后轮对的耦合度对动力学性能的影响规律。通过对传统固定轮对转向架、独立车轮转向架、磁流体耦合轮对转向架动力学性能的比较,发现合理选取转向架前后轮对的耦合度可提高转向架的动力学性能。

A dynamic calculation model for vehicles with magnetic fluid coupled wheelsets is established. Using numerical method, a dynamic simulation is made of the dynamic performances of a bogie equipped with magnetic fluid coupled wheelsets, and the influences of the front and rear magnetic fluid wheelsets on the dynamic performances of the bogie is obtained. A dynamic performances comparison between bogies with traditional fixed wheelsets, with independently rotating wheels, and with magnetic fluid coupled wheelsets reveals that a reasonable coupling factor of the front and rear wheelsets of bogies can help improve the dynamic performances of bogies.