## hypermesh四辊可逆式热轧轧机辊系振动分析

Title Four roller reversing hot rolling mill rolls Vibration    Analysis
Abstract
With the rapid development of modern industry ,the demand of rolled steel is also growing, the strip surface quality requirements are getting higher,In recent decades, China's demand for rolled steel industry products has been in short supply situation, rolled strip is the most widely rolled product in all sectors of the national economy . Currently, the mill is growing high-speed, large-scale and automation  and at the same time, the rolling process has shown a lot of new problems. 源自!六%维^论*文`网www.lwfree.cn
Hot rolled coil mill’s four roller reversing hot rolling mill structure is more complex, the AGC abnormal vibration has been found in the work when roll is less than 640mm, resulting in the abnormal work , causing a huge waste. For this reason, vibration analysis of mill rolls has been necessary, this project will use three-dimensional modeling software for modeling, then   mesh  and load it before treatment, and finally use ANSYS calculation to get the results and do analysis.
Keywords:Four-high mill  Rolls  Hot-rolled  Vibration Analysis
目   录
1   绪论2
1.1课题的背景及意义 2
1.2 国内外研究现状2
1.3 来源及研究的内容2
1.3.1课题来源3
1.3.2 任务及要求3
2   轧机辊系振动基本原理4
2.1.1  单自由度系统的有阻尼自由振动4
2.1.2  多自由度系统的有阻尼自由振动5
2.2   迭代法6
2.3  四辊轧机辊系理论模型7
2.4  四辊轧机六自由度模型14 源自!六%维^论*文`网www.lwfree.cn
3  四辊轧机建模分析17
3.1 四辊轧机Proe建模17
3.2   四辊轧机网格划分20
3.3  有限元导入25
4结果28
4.1分析33
5 体会33
5.1展望34

1  绪论
1.1  课题的背景及意义

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