冷轧带材整辊式板形仪通道耦合与解耦

doi:10.13228/j.boyuan.issn0449749x.20190155

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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。

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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

Abstract：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.

Key words： cold rolling strip seamless flatness meter channel coupling influence coefficient decoupling equation

收稿日期: 2019-04-12 出版日期: 2019-11-15

引用本文:

于华鑫，王东城，刘宏民，徐扬欢，郭子健. 冷轧带材整辊式板形仪通道耦合与解耦[J]. 钢铁, 2019, 54(11): 63-68. YU Huaxin1，WANG Dongcheng1，2，LIU Hongmin1，2，XU Yanghuan1，GUO Zijian3. Channel coupling and decoupling of seamless flatness #br# meter for cold rolling strip. Iron and Steel, 2019, 54(11): 63-68.

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