| 一个轧机参数振动模型 |
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| 引用本文： | 唐华平,段吉安,钟掘. 一个轧机参数振动模型[J]. 机械科学与技术, 2002, 21(5): 802-804 |
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| 作者姓名： | 唐华平 段吉安 钟掘 |
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| 作者单位： | 中南大学机电工程学院 长沙410083(唐华平，段吉安)，中南大学机电工程学院 长沙410083(钟掘) |
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| 摘 要： | 分析研究了带材横向振动导致轧机振动失稳的条件和机理。建立了轧制过程中带材横向振动动力学方程 ,分析带材横向参数振动稳定性、稳定区域和非稳定区域 ,得出开卷和卷取张力波动频率为带材横向振动固有频率二倍或一倍时 ,带材失稳 ,导致轧机振动加剧或失稳。对某平整机驱动电机主回路电流特性进行了分析和现场测试 ,证实了驱动电机主回路电流存在谐波分量 ,实测表明轧机在运行中存在由参数振动引起轧机失稳现象
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| 关 键 词： | 轧机 参数振动 富劳奎特(Floquet)理论 |
| 文章编号： | 1003-8728(2002)05-0802-03 |
| 修稿时间： | 2002-01-22 |
A Model of Rolling Roller Parameter Vibration |
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| TANG Hua ping,DUAN Ji an,ZHONG Jue. A Model of Rolling Roller Parameter Vibration[J]. Mechanical Science and Technology for Aerospace Engineering, 2002, 21(5): 802-804 |
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| Authors: | TANG Hua ping DUAN Ji an ZHONG Jue |
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| Abstract: | The unsteady condition of rolling mill vibration that it was caused by flexural vibration of strip was investigated. The parametric flexural vibration equation of rolled strip was established. The parametric flexural vibration stability of rolled strip was studied and region of stability and instability was determined based on Floquet theory. The flexural vibration of strip was unstable if the frequency of variable tension was two times the natural frequency of flexural vibration strip. |
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| Keywords: | Rolling mill Parametric vibration Floquet theory |
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