摘要
高速列车车体横向随机振动由车体的横移振动、侧滚振动和摇头振动三自由度合成,是影响车体横向运行平稳性的关键;为了改善列车横向运行平稳性,提高半主动控制性能;通过建立某型高速列车动力学模型,对车体横向振动特性进行分析,得出横移振动的加剧是造成车体合成横向振动和横向平稳性恶化的主要原因;通过分析在传统天棚阻尼控制算法下分别以车体合成横向振动为反馈和以横移振动为反馈对车体横向振动的控制效果,得出采用以车体横移振动为反馈的传统天棚阻尼控制算法对车体横向振动的抑制效果更佳;在此基础上,提出一种以车体横移振动为反馈的虚拟复合阻尼天棚控制算法,并进行联合仿真分析;结果表明:相比于被动控制,采用虚拟复合阻尼天棚控制算法后,车体合成横向振动加速度峰值、均方根值和平稳性改善率分别达到了46%、43%和19.5%,均高于采用传统天棚阻尼控制算法;可见,采用虚拟复合阻尼天棚控制算法在抑制车体合成横向振动,改善车体横向平稳性方面控制性能更佳。
The transverse random vibration of a high-speed train is composed of three degrees of freedom of motion,roll and shake vibration,which is the key to the lateral stability of the train.In order to improve the train lateral running stability,improve the semi-active control performance.Based on the dynamic model of a high-speed train,the transverse vibration characteristics of the vehicle body are analyzed,and it is concluded that the aggravation of the transverse vibration is the main reason for the deterioration of the synthetic transverse vibration and lateral stability of the vehicle body.Based on the analysis of the control effect of the vehicle body composite transverse vibration and the vehicle body transverse vibration as feedback under the traditional ceiling damping control algorithm,it is concluded that the traditional ceiling damping control algorithm using the vehicle body transverse vibration as feedback has a better suppression effect on the vehicle body transverse vibration.On this basis,a virtual composite damped ceiling control algorithm based on the feedback of vehicle body transverse vibration is proposed,and a joint simulation analysis is carried out.The results show that compared with the passive control,the acceleration peak,root-mean-square value and stability improvement rate of the vehicle body composite transverse vibration are 46%,43%and 19.5%respectively,which are all higher than that of the traditional control algorithm.It can be seen that the virtual composite damped ceiling control algorithm has better control performance in restraining the lateral vibration of vehicle body synthesis and improving the lateral stability of vehicle body.
作者
陈仁涛
陈春俊
Chen Rentao;Chen Chunjun(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China;Technology and Equipment of Rail Transit Operation and Maintenance Key Laboratory of Sichuan Province,Chengdu 610031,China)
出处
《计算机测量与控制》
2021年第3期145-150,共6页
Computer Measurement &Control
基金
国家自然科学基金(51975487)。
关键词
高速列车
横向振动
平稳性
传统天棚阻尼
虚拟复合阻尼
high-speed trains
transverse vibration
transverse stationarity
traditional ceiling damping
composite damping
