轧机变液压刚度电液弯辊力控制系统仿真分析  

RESEARCH ON ELECTRO-HYDRAULIC BENDING ROLLER SYSTEM OF VARIABLE HYDRAULIC STIFFNESS IN A ROLLING MILL

作　　者：金晓宏[1] 王飞[1] 童云春[1] 

机构地区：[1]武汉科技大学机械自动化学院

出　　处：《冶金丛刊》2008年第4期1-4,共4页Metallurgical Collections

基　　金：武汉科技大学机械传动与制造工程湖北省重点实验室开放基金;项目编号2007A10

摘　　要：液压弯辊力控制系统是现代高精度轧机板形控制的核心。当油液弹性模量为1．2GPa，活塞直径为0．14m，活塞杆位置在0—60mm全范围变化时，液压刚度会由3．45GN／m变为11．6GN／m。本文针对在变液压刚度下电液弯辊力控制系统的动态特性进行仿真分析，讨论了电液弯辊力控制系统的稳定性，给出提高动态响应速度和提高控制精度的补偿方法及算法。The electro-hydraulic bending roller system is the core of profile control of morden high precision mill. The hydraulic stiffness changed from 3.45GN/m to 11.6GN/m when the oil eleastie modular was 1.2GPa, the piston diameter was 0.14m and the piston rod moved from 0mm to 60mm. In this paper, the dynamic characteristic of electro-hydraulic bending roller system was simulated with variable hydraulic stiffness, and the stability of the system was discussed. The compensation process and algorithm were given to increase the dynamic response speed and control precision.

关 键 词：弯辊 变液压刚度 力控制 模糊PID 

分 类 号：TG333[金属学及工艺—金属压力加工] TP391.9[自动化与计算机技术—计算机应用技术]