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| An active method suppressing rolling mill vibration: disturbance estimation and compensation algorithm |
| Xiao-qiang Yan1, Jie-bin Qi1, Xin-xin Wang1 |
| 1 School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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Abstract 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.
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Received: 27 October 2018
Published: 27 March 2019
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| Cite this article: |
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Xiao-qiang Yan,Jie-bin Qi,Xin-xin Wang. An active method suppressing rolling mill vibration: disturbance estimation and compensation algorithm[J]. Journal of Iron and Steel Research International, 2019, 26(7): 697-703.
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2019, Vol. 26 
