Influence of mill modulus control gain on vibration in hot rolling mills
Jie-bin Qi1, Xin-xin Wang1, 2, Xiao-qiang Yan1
1 School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China; 2 Research Institute of Technology, Shougang Group Co., Ltd., Beijing 100043, China
Influence of mill modulus control gain on vibration in hot rolling mills
Jie-bin Qi1, Xin-xin Wang1, 2, Xiao-qiang Yan1
1 School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China; 2 Research Institute of Technology, Shougang Group Co., Ltd., Beijing 100043, China
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.
Jie-bin Qi,Xin-xin Wang,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.
2020, Vol. 27 
