关键词: 自适应高速转向架, 整车稳定性态分析图, 安全稳定裕度, 轮对自稳定性, 回转阻力矩有效性

Abstract: The dynamical design of self-adaptive high-speed bogies instructs the optimal parameter configurations of bogies applying with analysis graphs of full-vehicle stability properties and variation patterns,so as to remove completely the primary hunting or other similar phenomena.As a result the considerations can be given to both wheelset self-stability and rotational resistance moment effectiveness with very sufficient margin for safety and stability,and the normal functions can be then played.To satisfy the prerequisite for the regular perturbation problems,i.e.motion consistency or model availability,the rules of design modal analyses must be followed strictly in the software analysis flows.To avoid being transformed to the singular perturbation problems,the simulation models were transacted through the continuous refinements.Meanwhile the calculation efficiency could be improved remarkably by taking advantages of Newmark algorithm based on the secondary order differential formulations.For the two applications of self-adaptive rapid/high-speed bogies,the comprehensive evaluations showed that slight shaking of carbody yaw motion would help to form uniform wear of wheel tread under the new-car conditions,and the elastic bogie-suspended combination of fore and rear motors would be beneficial to reduce the general mass of hunting oscillations.

Key words: self-adaptive high-speed bogies, analysis graphs of full-vehicle stability properties and variation pattern, margin for safety and stability, wheelset self-stability, rotational resistance moment effectiveness