F4轧机工作辊垂扭耦合振动仿真与分析
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摘要
轧机工作辊处耦合振动是影响带钢质量的重要因素。根据某钢厂F4轧机实际参数建立了轧机工作辊垂扭耦合振动数学模型并进行了求解,得到了轧机工作辊处垂振和扭振的相互影响关系。同时,建立了该轧机系统三维模型,利用有限元分析软件ANSYS实现了关键部件的柔性化,最终建立了基于ADAMS的轧机系统刚柔耦合虚拟样机。利用ADAMS振动分析等模块,仿真分析了不同激励下轧机工作辊的动态响应情况。通过现场实测信号的分析验证了轧机工作辊垂扭耦合振动存在的真实性及模型建立的可靠性。分析结果表明,轧机工作辊处存在垂扭耦合振动且垂振对扭振的影响较为明显。
The coupling vibration of the working roll of mill is an important factor to affect the quality of strip steel. According to the actual parameters of a mill F4,the mathematical model of the vertical and torsional coupling vibration of the rolling mill was established and solved,and the relationship between the vertical and torsional vibration of the rolling mill work roll was obtained. Meanwhile,the threedimensional model of the rolling mill system was established. The key components were designed with flexibility by finite element analysis software ANSYS,and a rigid-flexible hybrid virtual prototype was established based on ADAMS eventually. Using ADAMS vibration analysis module,the dynamic responses of rolling mill work roll were simulated under different excitation conditions. The authenticity of the coupling vibration of the work roll and the reliability of the model were verified through the analysis of the measured signal. The analysis results show that there is a vertical and torsional coupling vibration in the working roll of mill,and the effect of the vertical vibration on the torsional vibration is obvious.
The coupling vibration of the working roll of mill is an important factor to affect the quality of strip steel. According to the actual parameters of a mill F4,the mathematical model of the vertical and torsional coupling vibration of the rolling mill was established and solved,and the relationship between the vertical and torsional vibration of the rolling mill work roll was obtained. Meanwhile,the threedimensional model of the rolling mill system was established. The key components were designed with flexibility by finite element analysis software ANSYS,and a rigid-flexible hybrid virtual prototype was established based on ADAMS eventually. Using ADAMS vibration analysis module,the dynamic responses of rolling mill work roll were simulated under different excitation conditions. The authenticity of the coupling vibration of the work roll and the reliability of the model were verified through the analysis of the measured signal. The analysis results show that there is a vertical and torsional coupling vibration in the working roll of mill,and the effect of the vertical vibration on the torsional vibration is obvious.
引文
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[2]吴炳胜,牛培.基于Adams的冷轧机工作辊振动分析与仿真[J].锻压技术,2015,40(11):159-163.Wu B S,Niu P.Vibration analysis and simulation of working roll of cold rolling mill based on Adams[J].Forging&Stamping Technology,2015,40(11):159-163.
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[4]Heidari A,Forouzan M R.Optimization of cold rolling process parameters in order to increasing rolling speed limited by chatter vibrations[J].Journal of Advanced Research,2013,4(1):27-34.
[5]王泽济,王瑞庭,张向军.冷连轧机主传动系统扭振分析[J].冶金设备,2010,(6):17-23.Wang Z J,Wang R T,Zhang X J.Torsional vibration analysis of the main drive system of tandem cold rolling mill[J].Metallurgical Equipment,2010,(6):17-23.
[6]张志静.六辊轧机扭转和垂直振动特性研究[D].武汉:武汉科技大学,2013.Zhang Z J.Research on Torsional and Vertical Vibration Characteristics of Six Roll Mill[D].Wuhan:Wuhan University of Science and Technology,2013.
[7]史荣,赵静,彭艳,等.基于实验研究的轧机垂扭耦合振动分析[J].实验力学,2012,27(3):319-325.Shi R,Zhao J,Peng Y,et al.Study on torsional vibration of rolling mill based on experimental study[J].Experimental Mechanics,2012,27(3):319-325.
[8]王天博.冷连轧机垂直振动系统的建模与仿真[D].阜新:辽宁工程技术大学,2006.Wang T B.Modeling and Simulation of the Vertical Vibration System of Tandem Cold Mill[D].Fuxin:Liaoning Technical University,2006.
[9]刘力,岳海龙,邹家祥.高速冷轧机辊缝摩擦系数影响素的研究[J].重型机械,2001,(2):9-12.Liu L,Yue H L,Zou J X.Study on the influence factors of friction coefficient of high speed cold rolling mill roll[J].Heavy Duty Machinery,2001,(2):9-12.
[10]王瑞鹏.热轧过程中轧机耦合振动机理研究[D].秦皇岛:燕山大学,2012.Wang R P.Study on the Mechanism of Rolling Mill Coupling Vibration in Hot Rolling Process[D].Qinhuangdao:Yanshan University,