|
|
|
| Compensative Vibration Model of Roll System Based on Horizontal Vibration of Rolled Piece |
| LIU Bin1,JIANG Jia-hao1,LIU Fei2,LIU Hao-ran2,LI Peng1 |
1. School of Electrical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
2. School of Informational Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China |
|
|
|
|
Abstract Considering the influence to the dynamic characteristics of rolling force and rolling friction from horizontal vibration of rolled piece, a compensative vibration model of roll system is established. According to the Lagrange principle of generalized dissipation, dynamic equilibrium equation is established respectively both in rolling direction and in vertical direction. With four-high strip mill of a factor as an example, simulating and analyzing the horizontal vibration velocity of rolled piece and the vibration displacement of roll under different rolling speeds. Five sets of rolling force data at different rolling speeds are obtained. Finally, the theoretical values of rolling force and the test data are compared with the model before and after optimization. Research results show that: the calculated values of the rolling force after optimization are far more close to the actual working condition;
|
|
Received: 13 January 2016
Published: 29 December 2017
|
|
|
|
|
|
［1］Brusa E, Lemma L. Numerical and experimental analysis of the dynamic effects in compact cluster mills for cold rolling［J］. Journal of Materials Processing Technology, 2009, 209(5): 2436-2445.
［2］刘彬, 蒋金水, 赵武, 等. 轧机转速波动测量的扭振监测实验研究［J］. 计量学报, 2007, 28(3):272-275.
［3］谢长贵, 曾海. 1220冷连轧机带钢表面振纹机理的研究［J］. 计量学报, 2015, 36(6):595-598.
［4］Niziol J, Swiatoniowski A. Numerical analysis of the vertical vibrations of rolling mills and their negative effect on the sheet quality［J］. Journal of Materials Processing Technology, 2005, 162/163(20):546-550.
［5］范小彬, 臧勇, 王会刚. 热连轧机垂直振动特性研究［J］. 中国机械工程, 2010, 21(15):1801-1804.
［6］Liu F, Liu B, Liu H R, et al. Vertical vibration of strip mill with the piecewise nonlinear constraint arising from hydraulic cylinder［J］. International Journal of Precision Engineering and Manufacturing, 2015, 16(9):1891-1898.
［7］王桥医, 黄海军, 李志华. 金属塑性加工工作界面非稳态润滑轧机振动控制［J］. 中南大学学报(自然科学版), 2010, 41(4):1418-1423.
［8］Yang X, Li Q, Tong C N, et al. Vertical vibration model for unsteady lubrication in rolls-strip interface of cold rolling mills［J］. Advances in Mechanical Engineering, 2012, 4(12):1432-1437.
［9］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.
［10］邹家祥. 冷连轧机系统振动控制［M］. 北京:冶金工业出版社, 1998. |
|
|
|
2018, Vol. 39 
