The results obtained reveal the mechanism of the radial steering bogie and show that the stiffness and the primary yaw damper of the articulated coupling rod plays an important roll in enhancing stability. 结果表明,前后轮对同向摇头约束刚度和一系抗蛇行减振器的阻尼参数对该径向转向架的蛇行稳定性有联合影响。