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大型液压轧机轧制薄板异常振动及振纹研究
引用本文:罗忠辉,吴百海,黄志坚,司振军.大型液压轧机轧制薄板异常振动及振纹研究[J].机床与液压,2006(1):105-107.
作者姓名:罗忠辉  吴百海  黄志坚  司振军
作者单位:1. 广东工业大学机电学院,广东,广州,510090;广东海洋大学工程学院,广东,湛江,524025
2. 广东工业大学机电学院,广东,广州,510090
基金项目:广东省广州市科技攻关项目
摘    要:对F3轧机异常振动信号及薄板振纹进行了研究,结果表明F3轧机主传动轴发生扭振,其固有频率为20.5Hz。由薄板振纹反演出轧机工作辊的振动频率为51Hz,此频率与工作辊水平振动的基频相吻合。通过倒频谱分析,得出50Hz附近的边频是由F3工作辊转频调制而成。

关 键 词:液压轧机  异常振动  振纹  倒频谱
文章编号:1001-3881(2006)1-105-3
收稿时间:2004-08-20
修稿时间:2004年8月20日

Research on the Abnormal Vibration of Large Hydraulic Rolling Mill and the Vibration Lines
LUO Zhonghui,WU Baihai,HUANG Zhijian,SI Zhenjun.Research on the Abnormal Vibration of Large Hydraulic Rolling Mill and the Vibration Lines[J].Machine Tool & Hydraulics,2006(1):105-107.
Authors:LUO Zhonghui  WU Baihai  HUANG Zhijian  SI Zhenjun
Affiliation:1. Faculty of Electromechanical Engineering, Guangdong University of Technology, Guangzhou Guangdong 510090, China; 2. Faculty of Mechanical Engineering, Guangdong Ocean University, Zhanjiang Guangdong 524025, China
Abstract:The abnormal vibration signals of large hydraulic rolling mill and Vibratory Lines of thin steel plate were studied.It reveals that the axis of rotation of 3rd rolling mill is torsional vibration,and its natural frequency is 20.5Hz.According to the Vibratory Lines,the frequency(51Hz) of work roller can be calculated,which approximately equal to the vertical natural horizontal frequency of work roller.Through Amplitude Cestrum analysis,the conclusion that the frequency around 50Hz is modulated by the rotary speed of 3rd rolling mill can be drawn.
Keywords:Matlab
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