高速列车蛇行减振实时混合试验的两级自适应时滞补偿方法  

Two-stage adaptive time-delay compensation method for real-time hybrid tests of high-speed train snake vibration reduction

作　　者：王贞 肖嘉俊 吴斌 徐小洋[3] 窦晓亮[4] WANG Zhen;XIAO Jiajun;WU Bin;XU Xiaoyang;DOU Xiaoliang(College of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China;Sanya Science and Education Innovation Park,Wuhan University of Technology,Sanya 572000,China;Central China Branch,China Construction 2nd Engineering Bureau Co.,Ltd.,Wuhan 430000,China;CRRC Qingdao Sifang Co.,Ltd.,Qingdao 266000,China)

机构地区：[1]武汉理工大学土木工程与建筑学院,武汉430070 [2]武汉理工大学三亚科教创新园,海南三亚572000 [3]中国建筑第二工程局有限公司华中公司,武汉430000 [4]中车青岛四方机车车辆股份有限公司,山东青岛266000

出　　处：《振动与冲击》2024年第17期71-78,共8页Journal of Vibration and Shock

基　　金：国家自然科学基金(52078398);海南省重大科技计划项目(ZDKJ2021024)。

摘　　要：时滞补偿是高速列车蛇行减振实时混合试验的关键问题之一。高速列车的多个自振频率超过10 Hz,加载命令不可避免地存在高频分量,进而要求更小的时滞误差以保证试验稳定性。针对此问题,基于两级自适应时滞补偿方法的基本思想,采用系统逆模型完成名义时滞补偿,采用有限脉冲响应离散模型建立自适应逆控制器补偿剩余时滞与不确定性时滞,利用渐消记忆卡尔曼滤波器在线估计控制器参数。为充分探讨所提方法性能,采用线性和非线性加载系统模型,开展了线性、非线性试件模型的高速列车虚拟实时混合试验,比较了不同时滞补偿方法性能。研究表明,所提方法具有优良的补偿性能,表现出较强的鲁棒性,对于高频信号也能实现良好的补偿效果。Time-delay compensation is one of key problems in real-time hybrid tests of high-speed train snake vibration reduction.Multiple natural frequencies of high-speed train exceed 10 Hz,and loading command inevitably has high-frequency components,it requires smaller time-delay errors to ensure test stability.Here,aiming at this problem,based on the basic idea of two-stage adaptive time-delay compensation method,a system inverse model was used to complete nominal time-delay compensation,and a finite impulse response discrete model was used to establish an adaptive inverse controller,and compensate residual time-delay and uncertain time-delay.The controller parameters were estimated online using a fading memory Kalman filter.To fully explore the proposed method’s performance,linear and nonlinear loading system models were used to conduct virtual real-time hybrid tests of high-speed trains with linear and nonlinear specimen models,and performances of different time-delay compensation methods were compared.The study showed that the proposed method has excellent compensation performance;it exhibits stronger robustness,and it can also realize good compensation effect for high-frequency signals.

关 键 词：实时混合试验 高速列车 抗蛇行减振器 高频信号 时滞补偿 

分 类 号：TU317[建筑科学—结构工程]