Vibration analysis of CSP rolling mill by excitation of transmission-screwdown-strip coupling
ZHANG Yi-fang1, HE Cheng1, CUI Li1, WANG Cai-yi1, YAN Xiao-qiang2
1. School of Intelligent Manufacturing and Control Engineering, Shanghai Polytechnic University, Shanghai 201209, China; 2. School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
Abstract：Aiming at the strong vibration phenomenon of CSP rolling mill when rolling high-strength thin strip steel, the online monitoring system was used to track and test the electromechanical and hydraulic signals of rolling mill, and the characteristics of vibration signal for vertical-torsional coupling were obtained. On this basis, the vibration mechanism of transmission-screwdown-strip coupling was discussed, the harmonic response simulation model of transmission-screwdown-strip coupling was constructed by ANSYS. The harmonic response characteristics of rolling mill under multi-excitation were solved, and the maximum vibration response at 42 Hz for F3 rolling mill was obtained, which was basically consistent with the test result on site. The research results have reference value for improving the rolling stability of thin gauge strip, and point out the direction of restraining rolling mill vibration.
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2022, Vol. 32 
