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为了研究通过控制空簧(空气弹簧)升降来使车体倾摆的摆式列车控制策略和动力学性能,建立考虑空簧悬挂系统的摆式列车多刚体动力学仿真模型。模型中考虑了高度控制阀、差压阀、倾摆控制策略以及车辆系统中的非线性特性,由理想气体状态方程建立了左右侧耦合的空簧系统垂向力学模型。采用数值仿真方法研究了摆式列车在曲线轨道上运行时的倾摆策略和动力学性能。仿真结果表明:通过控制左右侧空簧的升降可以使车体按要求倾摆,减小车辆通过曲线时作用在旅客身上的未平衡横向加速度,改善曲线通过平稳性,从而提高摆式列车曲线通过速度10%左右;车辆通过曲线后可以用高度阀调整车体回复到平衡位置附近;增加空气弹簧距轨面高度可以改善倾摆效果。
In order to study the control strategy and dynamic performance of the tilting train by controlling the air spring (air spring) lifting and tilting, a multi-body dynamics simulation model of the tilting train with hollow spring suspension system is established. In the model, the height control valve, differential pressure valve, tilting control strategy and nonlinear characteristics of the vehicle system are considered. The vertical dynamic model of left-right coupled hollow spring system is established by the ideal gas state equation. The numerical simulation method is used to study the tilting strategy and dynamic performance of the tilting train when it is running on curved orbit. The simulation results show that the vehicle body can be tilted as required by controlling the ascent and descent of the left and right air springs, reducing the unbalanced lateral acceleration acting on the passenger when the vehicle passes the curve, improving the smoothness of the curve and improving the curve passing through the tilting train The speed of about 10%; vehicles through the curve can be used to adjust the height of the valve body back to balance the vicinity of the position; increase the air spring height from the rail surface can improve the tilting effect.