摘要
为提升高速列车的线路运行适应性,设计基于抗蛇行减振器的模型预测控制(MPC)方法,实现基于减振器阻尼值实时调节的车辆蛇行运动稳定性控制。建立考虑线性轮轨接触关系的整车横向7自由度简化动力学模型;减振器考虑为理想Maxwell模型,但阻尼系数实时可调;基于模型预测控制理论设计主动抗蛇行减振器,建立目标函数及约束条件,求解最优阻尼系数;仿真分析主动控制条件的蛇行运动稳定性和运行平稳性以及目标函数对控制效果的影响。结果表明:与被动悬挂相比,采用MPC主动抗蛇行减振器能够有效抑制车辆的蛇行运动,使车辆的临界速度提升30%以上。
In order to enhance the adaptability of high-speed train line operation,the model predictive control(MPC)method based on yaw damper was proposed to realize the stability control of vehicle hunting motion based on real-time adjustment of yaw damping value.A simplified seven-degree-of-freedom dynamic model of the vehicle was established,considering the linear wheel-rail contact relationship.The damper is considered as an ideal Maxwell model,but the damping coefficient can be adjusted in real time.Based on the model predictive control theory,an active yaw damper was designed,and the objective function and constraint conditions were established to abtain the optimal damping coefficient.Simulation analysis was conducted on the active control conditions of hunting movement stability and running stability,and the influence of objective function on the control effect.The results show that compared with the passive suspension,the MPC active yaw damper can effectively suppress the vehicle's hunting motion and increase the critical velocity of the vehicle by over 30%.
作者
李钢
王勇
石怀龙
石俊杰
LI Gang;WANG Yong;SHI Huailong;SHI Junjie(State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China;P&T Research Center,CRRC Tangshan Co.,Ltd.,Tangshan 063035,China)
出处
《机械制造与自动化》
2023年第2期166-172,192,共8页
Machine Building & Automation
基金
国家自然科学基金资助项目(U2034210)。
