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《机床与液压》2002 No 6 · 331 ·
带材纠偏气液位置伺服系统动态性能研究
岳宏, 王秀玲, 师占群, 李德仲
(河北工业大学机器人及自动化研究所, 天津 300130)
摘要: 本文叙述了采用气液伺服阀作为控制元件的带材卷屈纠偏气液位置伺服系统的组成与工作原理。在建立系统数学模
型的基础上, 对系统进行了数字仿真和辨识实验, 同时, 分析了系统的稳定性、伺服精度及频带宽度等特性。通过对计算机仿
真与辨识实验结果的对比, 提出利用动压反馈装置改善系统响应特性的具体方案。
关键词: 带材纠偏; 数字仿真; 系统辨识
中图分类号: TH137 文献标识码: A 文章编号: 1001 - 3881 (2002) 6 - 133 - 3
Research of Dynamic Characteristics for Pneumohydraulic Position Servo System
Yue Hong , Wang Xiuling , Shi Zhanqun , Li Dezhong
(Hebei University of Technology , Tianjin 300130)
Abstract : In this paper , position and principle of operation of pneumohydraulic position servo systems , which makes correction for
running - off strip , are described Based on mathematical modeling of the system , the dynamic characteristics of the system are simulated and identi
fied At the same time , the stability of the system , accuracy of servo , and the bandwidth etc have also been analyz ed parison of the
simulation results with identification results , a new control scheme for pneumohydraulic servo system is proposed , by means of the feedback of dy
namic pressure to improve response characteristics of the system
Keywords : Pneumohydraulic ; Correction for running - off strip ; Digital simulation ; System identification
0 前言带材位置偏差信号检测器是一个具有狭缝状喷嘴的 U
带材(钢带、铝箔、塑料编带和纸张分切等) 在型测头。通过空气过滤组合稳压后的压缩空气分为两
卷屈过程中, 由于卷辊系统的制造偏差、卷屈