Transactions of Materials and Heat Treatment

Title：Study on coupling vibration mechanization and characteristics of multi-degree-of-freedom cold rolling mill

Authors： Peng Rongrong Gong Changfen Wang Shuai Feng Xiaoyan

Unit： Nanchang Institute of Technology

KeyWords： cold rolling mill multi-degree-of-freedom dynamic rolling force coupling vibration chaos

ClassificationCode：TH113；O322

year,vol(issue):pagenumber：2017,42(10):119-126

Abstract：

By analyzing the interaction of rolling force in both vertical and horizontal directions and the actual mechanical structure of cold rolling mill rolls, the verticalhorizontal coupling nonlinear vibration model of multidegreeoffreedom cold rolling mill rolls under the influence of dynamic rolling force was established. Then, the various sensitive parameters were selected in dynamic rolling force variation by taking advantage of parameters in the proportion of the rolling force variation, and the dynamic equation of multidegreeoffreedom coupling system for rolling mill was obtained, which is solved by applying the harmonic balance method. Furthermore, the characteristic curve of frequency amplitude of rolling mill with multidegreeoffreedom coupling system under different excitation forces was obtained by simulation based on the actual parameters of rolling mill, and the evolution approach of the horizontal period doubling bifurcation and chaos was studied under the certain parameters. Therefore, the coupling system also shows rich bifurcation and chaos phenomenon in the vertical direction. Finally, the dynamic behavior of coupling system was analyzed and verified by adopting bifurcation diagram, phase diagram, the maximum Lyapunov index and Poincare section.

Funds：

江西省教育厅科学技术研究项目(GJJ151240)；南昌工学院科技计划项目（GJKJ-2015-32）

作者简介：彭荣荣（1987-），男，硕士，讲师，E-mail：15294476178@163.com

Reference：

[1]闫晓强. 热连轧机机电液耦合振动控制[J]. 机械工程学报，2011, 47(17):61-65.

Yan X Q. Machinery-electric-hydraulic coupling vibration control of hot continuous rolling mills[J]. Journal of Mechanical Engineering, 2011, 47(17):61-65.

[2]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):321-325.

Shi R, Zhao J, Peng Y, et al. Mill verticaltorsion coupling dynamic vibration analysis based on experimental study[J]. Journal of Experimental Mechanics, 2012，27(3):321-325.

[3]王瑞鹏，彭艳，张阳，等. 轧机耦合振动机理研究[J]. 机械工程学报，2013, 49(12):66-71.

Wang R P，Peng Y，Zhang Y，et al. Mechanism research of rolling mill coupled vibration [J]. Journal of Mechanical Engineering, 2013, 49(12):66-71.

[4]侯东晓，刘浩然，李纪召，等. 轧件不对称滞后变形下动态轧制力建模及仿真研究[J]. 机械工程学报，2012, 48(14):38-43.

Hou D X, Liu H R, Li J Z, et al. Modeling and simulation of dynamically rolling force under the asymmetric hysteretic deformation of workpiece[J]. Journal of Mechanical Engineering, 2012, 48(14):38-43.

[5]侯东晓，朱月，刘浩然，等. 基于动态轧制力的冷轧机非线性振动特性研究[J]. 机械工程学报，2013, 49(14):45-50.

Hou D X, Zhu Y, Liu H R, et al. Research on nonlinear vibration characteristics of cold rolling mill based on dynamic rolling force[J]. Journal of Mechanical Engineering, 2013, 49(14):45-50.

[6]刘彬，赵红旭，朱月，等. 基于动态轧制力的冷轧机两自由度垂直振动特性[J]. 中国机械工程，2014, 25(17): 2344-2350.

Liu B, Zhao H X, Zhu Y, et al. Two degree of freedom vertical vibration characteristics of cold rolling mill based on dynamic rolling force [J]. China Mechanical Engineering, 2014, 25(17):2344-2350.

[7]刘浩然，张莹，时培明，等. 基于动态轧制力的四辊冷轧机七自由度振动特性研究[J]. 振动与冲击，2015, 34(22): 98-102, 120.

Liu H R, Zhang Y, Shi P M, et al. Vibration characteristics of a cold rolling mill with a model of seven degrees of freedom and their influence on dynamic rolling force [J]. Journal of Vibration and Shock, 2015, 34(22): 98-102, 120.

[8]张瑞成，马寅州. 基于动态轧制力的轧机垂扭耦合系统非线性振动机理研究[J] 机械设计与制造，2016, (7): 146-149.

Zhang R C, Ma Y Z. Study on the nonlinear vibration of the vertical-torsion coupling system for rolling mill based on dynamic rolling force [J]. Machinery Design & Manufacture, 2016, (7):146-149.

[9]侯东晓，彭荣荣，刘浩然. 变摩擦力下板带轧机辊系垂直-水平耦合振动特性[J] 东北大学学报: 自然科学版，2013, 34(11): 1615-1619.

Hou D X, Peng R R, Liu H R. Vertical-horizontal coupling vibration characteristics of strip mill rolls under the variable friction [J]. Journal of Northeastern University: Natural Science, 2013, 34 (11): 1615-1619.

[10]彭荣荣. 轧机辊系垂直-水平耦合振动控制机理模型与特性研究[D]. 秦皇岛：燕山大学，2014.

Peng R R. Study on Vertical-horizontal Coupling Vibration Control Mechanism Model and Characteristic of Rolling Mill Rolls [D]. Qinhuangdao: Yanshan University, 2014.

[11]李万祥. 高维含间隙振动系统的分岔与混沌研究[J]. 机械振动，2004, 26(5):479-483.

Li W X. Bifurcation and chaos of multi-degree-of-freedom system with clearance[J]. Journal of Mechanical Strength, 2004, 26 (5): 479-483.

[12]彭荣荣. 冷连轧机辊系参激刚度颤振特性研究[J]. 锻压技术，2016, 41(10):108-112.

Peng R R. Research on vibration characteristics of parametrically excited stiffness for cold rolling mill rolls[J]. Forging & Stamping Technology, 2016, 41(10):108-112.

[13]古志明，王树国，杨昊. 一类双自由度碰撞振动系统的分岔与混沌分析[J]. 兰州交通大学学学报，2012, 31 (1): 146-148.

Gu Z M, Wang S G, Yang H. Bifurcation and chaos analysis of vibroimpact system with twodegreeoffreedom[J]. Journal of Lanzhou Jiaotong University，2012,31 (1): 146-148.

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