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在对五模块中低速磁悬浮车辆进行结构分析和运动分析的基础上,利用SIMPACK软件建立了90个自由度的整车动力学模型,并对磁悬浮车辆进行了动力学性能仿真。仿真结果表明:中低速磁浮车辆车体的垂向运行平稳性主要受二系垂向阻尼影响,而横向运行平稳性主要受滑台滑块之间的摩擦系数影响,受该磁悬浮车辆悬挂结构的制约,该磁浮车的最大运行速度不能超过90 km/h;通过曲线时,车体的最大横移量、侧滚角与各悬浮侧架的最大横移量、侧滚角、摇头角都随着通过速度的增大而增大,其中,1,2位与4,5位悬浮架的曲线性能基本对称。悬浮侧架与轨道间的最小横向间隙随着速度增大而减小,当速度为80 km/h时,悬浮侧架上的导向轮与轨道已接触,所以该磁浮车通过半径为300 m的曲线时速度应限制在80 km/h以下,最好不超过70 km/h。
Based on the structural analysis and the motion analysis of low-speed maglev vehicles in five modules, the whole vehicle dynamic model of 90 degrees of freedom was established by using SIMPACK software, and the dynamic performance of the maglev vehicle was simulated. The simulation results show that the vertical running stability of the low-speed maglev vehicle body is mainly affected by the second-order vertical damping, while the lateral running stability is mainly affected by the friction coefficient between the sliders, which is affected by the suspension structure of the maglev vehicle The maximum running speed of the maglev vehicle can not exceed 90 km / h. When passing the curve, the maximum lateral displacement of the vehicle body, the roll angle and the maximum lateral displacement of each side frame, the roll angle and the swing angle With the increase of velocity, the curves of 1, 2 and 4, 5-bit suspension frame are basically symmetrical. The minimum lateral clearance between the suspended side frame and the track decreases with increasing speed. When the speed is 80 km / h, the guide wheel on the suspended side frame is in contact with the track, so the maglev passes through a radius of 300 m Curve speed should be limited to 80 km / h below, preferably not more than 70 km / h.