铁道科学与工程学报2025，Vol.22Issue(4)：1444-1456,13.DOI:10.19713/j.cnki.43-1423/u.T20241010
强侧风环境下动车组运行安全主动控制方法
Active control method for train operation safety under strong side wind environment
摘要
Abstract
This paper aimed at the abnormal vibration and overturning safety of high-speed multiple units when they are affected by side winds.The analysis of vehicle dynamic performance under different wind loads was carried out for a certain type of high-speed multiple unit vehicle.The method of suppressing transverse vibration of the vehicle body and ensuring the overturning safety was proposed through the second transverse active suspension control.First,the dynamics and control simulation model of active suspension system for high-speed vehicles was established,and different wind load calculation models were considered.Second,the dynamic response law of the vehicle was analyzed under different combinations of wind speed,vehicle speed,and wind angle.In the simulation study,three control methods,i.e.,Sky-Hook control law,acceleration feedback PID control law,and Sliding Mode control law,were designed and compared to analyze their effects on the improvement of lateral vibration and overturning safety of the vehicle body.The results show that when the vehicle speed reaches 300 km/h or above,the changes of axle transverse force,wheelset unloading coefficient,and other indicators are more sensitive.When the vehicle speed is not more than 250 km/h,the changes of overturning coefficient are more sensitive.In addition,the effect of random wind load on vehicle dynamics is greater than hat wind load,and there is a significant difference in the smoothness indices under the two models.Compared with the smoothness index as the target,the PID control law is more effective in controlling the vehicle body vibration under the hat wind excitation.While the sliding mode control law has a significant improvement effect on both types of wind excitation,it has a desired adaptability to the vehicle speed and wind speed.By applying the Sliding Mode control law,the maximum and root-mean-square(RMS)values of the transverse vibration acceleration of the car body are reduced by 63.5%and 58.5%,respectively,and the tipping coefficient and the roll angle of the car body are reduced by 35.4%and 42.8%,respectively.The results are of great significance in suppressing the lateral body vibration and improving the safety of overturning.关键词
动车组/动力学/侧风安全性/主动悬挂/运行平稳性Key words
multiple units/dynamics/sidewind safety/active suspension/running smoothness分类
交通运输引用本文复制引用
陈璨,石怀龙,刘佳宁,张红卫..强侧风环境下动车组运行安全主动控制方法[J].铁道科学与工程学报,2025,22(4):1444-1456,13.基金项目
中国国家铁路集团有限公司科技研究开发计划课题(P2023J001-1) （P2023J001-1）
国家自然科学基金资助项目(52272406,U2468227) （52272406,U2468227）
四川省自然科学基金资助项目(2025ZNSFSC00342) （2025ZNSFSC00342）
