基于扩张状态观测器的轧机振动抑振器研究

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Abstract Rolling mill vibration is a mechanical-electrical-hydraulic coupled “phantom” one. At present, the main vibration suppression method for rolling mill vibration is to adjust its parameters. Here, a new vibration suppression method was proposed. Firstly, rolling mill external disturbances and the system’s uncertain parameters were estimated with an extended state observer and taken as the total disturbances. Then, the total disturbances were converted into the equivalent servo valve input. Finally, the equivalent input was compensated in real time to control signals of the servo valve to suppress rolling mill vibration. This vibration suppressor was taken as a module to be embedded into the original control system. The simulation results showed that the proposed vibration suppressor has a good vibration -suppressing effect on three often occurring rolling mill vibration phenomena.

Key words： vibration in rolling mill coupling vibration extended states observer vibration suppressor

Received: 26 October 2017 Published: 28 February 2019

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	WANG Xinxin YAN Xiaoqiang

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WANG Xinxin YAN Xiaoqiang. Vibration suppressor of rolling mills based on extended state observer[J]. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(5): 1-6.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2019/V38/I5/1

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