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大型液压轧机轧制薄板异常振动及振纹研究

Research on the Abnormal Vibration of Large Hydraulic Rolling Mill and the Vibration Lines

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【Author】 LUO Zhonghui~(1,2),WU Baihai~1,HUANG Zhijian~1,SI Zhenjun~1(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)

【机构】广东工业大学机电学院；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；广东广州510090；

【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。更多还原

【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.更多还原

【关键词】液压轧机；异常振动；振纹；倒频谱； Matlab；
【Key words】 Hydraulic rolling mill； Abnormal vibration； Vibratory lines； Amplitude cestrum； Matlab；

【基金】广州市重点攻关项目资助(编号:2001-Z-030-01)

【文献出处】机床与液压 ,Machine Tool & Hydraulics , 编辑部邮箱 ,2006年01期

【分类号】TG333
【被引频次】4
【下载频次】214

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