关键词: 电轴技术, 电气耦合轮对, 建模仿真, 导向性能

Abstract:

A electrical shaft system was applied to railway vehicles for the first time with independently rotating wheel. A new type of coupled wheelsets was proposed by electrical coupled method. Studying coupled torques and its influence factors of this coupled wheelsets, it is true that the coupled capacity can be adjusted. The oriented mechanism of this electrical coupled wheelsets is as same as feedback control based on angular differences between two wheels. Numerical model of metro vehicles with independently rotating wheel was established to simulate the steering performance. The results show that vehicles with electrical coupled wheelsets are better than the one with independently rotating wheel,and same to the elasto-damper coupled wheelsets; low-speed and high-torque winding induction motor and appropriate public resistance can improve self-steering ability of electrical coupled wheelsets effectively.

Key words: electrical shaft;electrical coupled wheelsets;modeling simulation, steering performance