牵引电机架悬参数对动车转向架稳定性的影响

Effect of the Suspension Parameter of Traction Motors on the Stability of Motor Car Bogies

建立了转向架系统横向动力学模型,结合模态分析技术,通过多参数仿真计算,发现电机悬挂参数和质量参数对稳定性的影响很大,并且存在一个电机悬挂最佳频率,小于该频率时系统可获得较高的稳定性;计算结果还表明,一系悬挂参数、二系悬挂参数和轮轨参数对最佳频率的影响很大。

The lateral dynamics model of the bogie system is set up.In combination with the modal analysis technique,through multi-parameter simulation calculation,it is found out that the suspension parameters of tractions motors and mass parameters have great effects on stability,and there is an optimum frequency of the motor suspension,higher stability of the system can be obtained when the frequency is smaller than the optimum frequency;The calculation result also shows that the primary suspension parameters,secondary suspension parameters and the wheel-rail parameters have great effects on the optimum frequency.