抗侧滚扭杆对地铁车辆动力学性能影响分析

Influence of Anti-roll Bar on Metro Vehicle Dynamic Performances

采用SIMPACK动力学分析软件建立了某80km/h B型地铁车辆的动力学模型,分析比较了该车辆的动力学性能随抗侧滚扭杆刚度的变化情况。计算结果表明:抗侧滚扭杆装置能显著降低车辆柔度系数、轮轴横向力、车体侧滚角和倾覆系数;对车辆非线性临界速度、脱轨系数则影响不大;对车辆运行平稳性、轮重减载率则存在不利影响。

By use of the SIMPACK multibody dynamics software ,an 80 km/h B type metro vehicle model was established .Then the dynamic performaces of the vehicle with different anti-roll bar＆#39;s stiffness were analyzed and compared .And the study results show that the anti-roll bar has a significantly effect on lowering the vehicle flexibility ,axle lateral force ,carbody roll angle and capsizal coefficient ,and has little effect on the nonlinear critical speed and derailment coefficient ,but has a negative effect on riding index and wheel load reduction rate .