Influence of mill modulus control gain on vibration in hot rolling mills

Jie-bin Qi, Xin-xin Wang, Xiao-qiang Yan

钢铁研究学报(英文版) ›› 2020, Vol. 27 ›› Issue (5) : 528-536.

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钢铁研究学报(英文版) ›› 2020, Vol. 27 ›› Issue (5) : 528-536. DOI: 10.1007/s42243-020-00375-3
论著

Influence of mill modulus control gain on vibration in hot rolling mills

  • Jie-bin Qi1, Xin-xin Wang1, 2, Xiao-qiang Yan1
作者信息 +

Influence of mill modulus control gain on vibration in hot rolling mills

  • Jie-bin Qi1, Xin-xin Wang1, 2, Xiao-qiang Yan1
Author information +
文章历史 +

摘要

The rolling mill vibration is characterized by the coupling effects among mechanical, electrical, hydraulic and interfacial subsystems. The influence of the mill modulus control gain in automatic gauge control on the vibration in hot rolling mills was investigated. Firstly, an experiment related to the mill modulus control gain was carried out in the hot rolling mill process, and it was found that the rolling mill vibration increases with the mill modulus control gain. Then, based on the Sims rolling force method, the coupling dynamic model was established to explain this phenomenon. Finally, the influence of mill modulus control gain on the vibration was analyzed numerically on the basis of the coupling dynamic model. Moreover, the agreement between the experimental results and the simulation results was confirmed and the measure reducing the mill modulus control gain was obtained to relieve mill vibration.

Abstract

The rolling mill vibration is characterized by the coupling effects among mechanical, electrical, hydraulic and interfacial subsystems. The influence of the mill modulus control gain in automatic gauge control on the vibration in hot rolling mills was investigated. Firstly, an experiment related to the mill modulus control gain was carried out in the hot rolling mill process, and it was found that the rolling mill vibration increases with the mill modulus control gain. Then, based on the Sims rolling force method, the coupling dynamic model was established to explain this phenomenon. Finally, the influence of mill modulus control gain on the vibration was analyzed numerically on the basis of the coupling dynamic model. Moreover, the agreement between the experimental results and the simulation results was confirmed and the measure reducing the mill modulus control gain was obtained to relieve mill vibration.

关键词

Automatic gauge control / Rolling mill vibration / Coupling dynamic model / Mill modulus control gain / Vibration suppression

Key words

Mill modulus control gain / Coupling dynamic model / Rolling mill vibration / Automatic gauge control / Vibration suppression

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Xin-xin Wang, Jie-bin Qi, Xiao-qiang Yan. Influence of mill modulus control gain on vibration in hot rolling mills[J]. 钢铁研究学报(英文版), 2020, 27(5): 528-536 https://doi.org/10.1007/s42243-020-00375-3
Xin-xin Wang, Jie-bin Qi, Xiao-qiang Yan. Influence of mill modulus control gain on vibration in hot rolling mills[J]. Journal of Iron and Steel Research International, 2020, 27(5): 528-536 https://doi.org/10.1007/s42243-020-00375-3

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