悬挂式车辆导向轮最佳垂向位置分析计算

Analysis and Calculation of Optimal Vertical Position of Suspended Vehicle Guide Wheel

分析了悬挂式车辆转向架的结构,运用Simpack动力学分析软件建立了车辆的动力学仿真模型。分析计算了导向轮不同垂向位置对各个导向轮受力情况以及车辆曲线通过性能的影响,计算结果表明:导向轮垂向位置越低,主导向轮受力越好,导向轮的最大导向力越小,车体侧滚角越小,轮重减载率越小,走行轮最大垂向力无明显变化趋势。综合考虑,导向轮垂向位置设置在-200 mm处时,车辆具有较优的曲线通过性能。

The article analyzes the structure of the suspension vehicle bogie,and uses Simpack dynamic analysis software to establish the vehicle dynamic simulation model.The influences of different vertical positions of the guide wheels on the force of each guide wheel and the vehicle curve passing performance were analyzed and calculated.The calculation results show that the lower the vertical position of the guide wheel,the better the force of the main guide wheel,the smaller the maximum steering force of the guide wheel,the smaller the side roll angle of the vehicle body,and the smaller the wheel load reduction rate.The maximum vertical force of the traveling wheel has no obvious change trend.Comprehensively considered,when the vertical position of the guide wheel is set at-200 mm,the vehicle has better curve passing performance.