冷轧带材整辊式板形仪通道耦合与解耦  

Channel coupling and decoupling of seamless flatness meter for cold rolling strip

作　　者：于华鑫 王东城 刘宏民[1,2] 徐扬欢 郭子健[3] YU Hua-xin;WANG Dong-cheng;LIU Hong-min;XU Yang-huan;GUO Zi-jian(National Engineering Research Center for Equipment and Technology of Cold Rolling Strip,Yanshan University,Qinhuangdao 066004,Hebei,China;State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,Hebei,China;Shougang Zhixin Qian'an Electromagnetic Material Co.,Ltd.,Tangshan 064404,Hebei,China)

机构地区：[1]燕山大学国家冷轧板带装备及工艺工程技术研究中心,河北秦皇岛066004 [2]燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004 [3]首钢智新迁安电磁材料有限公司,河北唐山064404

出　　处：《钢铁》2019年第11期63-68,共6页Iron and Steel

基　　金：河北省自然科学基金资助项目（E2016203482）

摘　　要：板形检测是提高板形质量的基础和关键。为保证带材表面不被划伤,整辊式板形仪应运而生。由于结构的特殊性,整辊式板形仪在某一通道受压力时不仅会对本通道信号产生作用,还会对邻近通道信号产生显著干扰,引起检测误差,因此需要对其进行解耦处理。为解决这一问题,首先通过力学分析提出了通道耦合的概念和影响矩阵模型,然后通过标定试验获得影响矩阵的数值,最终通过解耦方程消除通道间的相互干扰。仿真试验和工业应用证明,提出的理论和方法可有效提高板形检测和控制精度。Flatness detection is the basis and key to improving flatness quality.To ensure that the strip surface is not scratched,a seamless flatness meter is developed.Because of the structure particularity of the seamless flatness meter,when a certain channel is pressed,a significant interference signals in the adjacent channels will be found,which causes the flatness detection error and needs to be eliminated by decoupling.To solve this problem,a channel coupling concept and an influence matrix model are firstly proposed by mechanics analysis.Then the entries of the influence matrix are obtained through calibration experiments.Finally,the interferences among channels are eliminated using a decoupling equation.The simulation and experiment and industrial application prove that the theory and method proposed can effectively improve the accuracy of the flatness detection and control.

关 键 词：冷轧带材 整辊式板形仪 通道耦合 影响系数 解耦方程 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]