An analysis on strip vibration coupled with torsional vibration of main drive system of rolling mill

The torsional vibration model of main drive system for 6-high cold rolling mill was established. Calculation formula of torque amplification factor (TAF) of main drive system was put forward when the clearance exists or not. The TAF-curve, changing by the biting time of blank, was drawn, and whether torsional vibration could cause mechanical failure in weak link of main drive system was judged. The TAF variation with the biting time of blank was analyzed when the clearance exists. The method to reduce TAF was proposed before the clearance was eliminated, and the effect caused by the impact on main drive system was alleviated.

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Adaptive neural torsional vibration suppression of the rolling mill main drive system subject to state and input constraints with sensor errors

Journal of the Franklin Institute ◽

10.1016/j.jfranklin.2020.08.003 ◽

2020 ◽

Vol 357 (17) ◽

pp. 12886-12903

Author(s):

Cheng Qian ◽

Changchun Hua ◽

Liuliu Zhang ◽

Zhenhua Bai

Keyword(s):

Torsional Vibration ◽

Rolling Mill ◽

Vibration Suppression ◽

Drive System ◽

Input Constraints ◽

Sensor Errors ◽

Main Drive System

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Torsional Vibration Suppression Control in the Main Drive System of Rolling Mill by State Feedback Speed Controller Based on Extended State Observer

2007 IEEE International Conference on Control and Automation ◽

10.1109/icca.2007.4376745 ◽

2007 ◽

Cited By ~ 3

Author(s):

Ruicheng Zhang ◽

Zhikun Chen ◽

Youliang Yang ◽

Chaonan Tong

Keyword(s):

Torsional Vibration ◽

Rolling Mill ◽

State Feedback ◽

Vibration Suppression ◽

State Observer ◽

Drive System ◽

Extended State Observer ◽

Extended State ◽

Speed Controller ◽

Main Drive System

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Torsional vibration reduction for rolling mill’s main drive system via negative velocity feedback under parametric excitation

Journal of Mechanical Science and Technology ◽

10.1007/s12206-015-0330-8 ◽

2015 ◽

Vol 29 (4) ◽

pp. 1581-1589 ◽

Cited By ~ 17

Author(s):

Y. A. Amer ◽

A. T. EL-Sayed ◽

F. T. El-Bahrawy

Keyword(s):

Parametric Excitation ◽

Torsional Vibration ◽

Vibration Reduction ◽

Drive System ◽

Velocity Feedback ◽

Main Drive System

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Electromechanical Coupling Vibration of Rolling Mill Excited by Variable Frequency Harmonic

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.912-914.662 ◽

2014 ◽

Vol 912-914 ◽

pp. 662-665 ◽

Cited By ~ 4

Author(s):

Yi Fang Zhang ◽

Xiao Qiang Yan ◽

Qi Hui Ling

Keyword(s):

Torsional Vibration ◽

Rolling Mill ◽

Electromechanical Coupling ◽

Drive System ◽

Current Signal ◽

Output Current ◽

Coupling Vibration ◽

Current Harmonics ◽

Electric Drive System ◽

Frequency Harmonic

Using torque telemetry system to test the mechanical drive system of rolling mill,it is found that the torsional vibration and current signal in the electric drive system have the same obviously vibration frequency. The model of cycloconverter, synchronous motor and mechanical drive system of rolling mill are built and analysed by Matlab/Simulink and ANSYS.The simulation results show when the harmonic torque frequency and the torsional vibration natural frequency of for mechanical drive system are equal or close, the strong torsional vibration arouse It is proved that the convertor output current harmonics can induce the electromechanical coupling vibration of main mechanical drive system under the certain conditions.

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