摘要
高速磁浮列车是新型高速交通工具,具有良好应用前景,逐渐成为研究热点。当列车过桥墩时,由于桥梁此处竖向刚度远大于其他位置,列车与桥梁之间存在冲击相互作用,对磁浮控制非常不利,甚至影响运行安全性。为了研究该耦合振动,提出了高速磁浮列车-桥梁耦合振动实时混合试验;首先阐述了方法原理与流程,然后建立试验系统数值仿真模型,开展数值仿真分析。研究表明:混合试验模拟结果精度较好,高速磁浮列车的车桥耦合实时混合试验具有可行性;不过,准确复现冲击相互作用对加载系统的动力性能要求较高,仍然存在较大困难;研究结果可为车桥耦合实时混合试验的实施提供参考。
A high-speed maglev train is a new and promising type of high-speed transportation,and has gradually become a research hotspot.When the train passes a bridge pier,owing to the pier vertical stiffness far greater than other bridge sections,there is an impact interaction between the train and the bridge.This impact is very unfavorable to the suspension control and even affects operational safety.In order to study the coupling vibration,a real-time hybrid test for this coupling vibration between a high-speed maglev train and a bridge was proposed in this paper.The principle and flow diagram of this method was first described,and then a numerical simulation model of the test system was established,and numerical simulation analysis was carried out.The studies show that the simulation results of the hybrid test are fairly good as a whole,and the real-time hybrid test for high-speed maglev train-bridge coupling vibration is feasible;however,it is still difficult to accurately reproduce the impact interaction,which requires demanding dynamic performance of the loading system.The study results can provide some reference for the implementation of real-time hybrid tests for train-bridge coupling vibration.
作者
王贞
侯金佑
吴斌
杨格
王涛
许国山
丁勇
WANG Zhen;HOU Jinyou;WU Bin;YANG Ge;WANG Tao;XU Guoshan;DING Yong(School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China;School of Architecture and Civil Engineering,Heilongjiang University of Science and Technology,Harbin 150022,China;School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China)
出处
《振动与冲击》
EI
CSCD
北大核心
2022年第8期270-276,共7页
Journal of Vibration and Shock
基金
国家自然基金面上项目(51878525,52078398)。
关键词
高速磁浮列车
实时混合试验
耦合振动
试验仿真
时滞补偿
high-speed maglev train
real-time hybrid test
coupling vibration
test simulation
time delay compensation
