轨道路基动力响应测试激振系统压力伺服控制研究  

Research on pressure servovalve control of Excitation System of Rail Track Dynamic Test System

作　　者：李鹏[1] 陈新元[1] 万园[1] 郑飞龙[1] 尹丹[1] 李涛[1] 

机构地区：[1]武汉科技大学机械自动化学院,武汉430081

出　　处：《新型工业化》2013年第8期25-31,共7页The Journal of New Industrialization

基　　金：国家自然科学基金资助项目(51027002)

摘　　要：列车在轨道路基上高速行驶的过程中会对轨道产生动、静两种载荷。轨道所承受的作用力具有振动力大、频率高及振幅大的特点,而现有的路基动力响应测试激振系统很难满足测试要求。文中针对这一问题,采用一种新型双级伺服液压缸,通过对工况的模拟分析,设计了相应的电液压力伺服激振系统。同时,对激振系统进行了理论建模,代入相关参数构建了系统的数学模型,并利用MATLAB/Simulink对系统进行了仿真,分析了系统具有的相关特性。The high-speed train running on the rail track will produce dynamic and static loads. The track has to withstand the force of the vibration force, high frequency and amplitude, but the existing excitation system is difficult to meet the test requirements. This paper,solving this problem, used a novel two-stage servo hydraulic cylinder and designed the electro-hydraulic pressure servo excitation system, through the simulation analysis of the working conditions. Meanwhile, this article analysised the theoretical modeling of the vibration system, substituted the relevant parameters to construct a mathematical model of the system, and using MATLAB / Simulink analysis the relevant characteristics of the system.

关 键 词：轨道路基 激振系统 力伺服控制 压力伺服阀 

分 类 号：TH137[机械工程—机械制造及自动化]