An active method suppressing rolling mill vibration: disturbance estimation and compensation algorithm

作     者：Xiao-qiang Yan Jie-bin Qi Xin-xin Wang 

作者机构：School of Mechanical Engineering University of Science and Technology Beijing Beijing 100083 China 

出 版 物：《Journal of Iron and Steel Research International》 (国际钢铁研究杂志)

年 卷 期：2019年第26卷第7期

页      面：697-703页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 

主　　题：Rolling mill vibration Active vibration suppression Disturbance estimation Compensation algorithm Extended state observer 

摘      要：The rolling mill vibration not only seriously causes the strip thickness heterogeneity, but also damages the rolling mill equipment and its electrical components. Existing vibration suppression methods are passive and mainly tune mechanical, hydraulic, electrical and rolling process parameters. A new active vibration suppression method was thus proposed using the disturbance estimation and compensation algorithm. Firstly, the hydraulic-mechanical coupling model of the rolling mill vibration was established, and an active vibration suppressor was designed based on the extended state observer. Then, through the numerical simulation, it is found that the vibration energy is reduced by 35.3% using the vibration suppressor, and the vibration suppressor is valid when the vibration frequency is lower than 60 Hz Finally, the vibration suppressor was applied to the in-site manufacturing, and the expected vibration suppression was obtained. The method makes the produced steel strip have more uniform thickness and further significantly increases the finished product ratio.