• CN：11-2187/TH
• ISSN：0577-6686

›› 2012, Vol. 48 ›› Issue (14): 38-43.

• 论文 •

### 轧件不对称滞后变形下动态轧制力建模及仿真研究

1. 东北大学秦皇岛分校自动化工程系;燕山大学信息科学与工程学院
• 发布日期:2012-07-20

### Modeling and Simulation of Dynamically Rolling Force under the Asymmetric Hysteretic Deformation of Workpiece

HOU Dongxiao;LIU Haoran;LI Jizhao;LIU Fei

1. Department of Automatic Engineering, Northeastern University at Qinhuangdao Institute of Information Technology and Engineering, Yanshan University
• Published:2012-07-20

Abstract: By the analysis of the effects caused by the roller vibration on the elastic-plastic deformation state of workpiece, the changing characteristics and the quantic of the rolling force under different directions of vibration are discussed, and a dynamical rolling force model with asymmetric hysteresis deformation impact is established. By taking the 1780 rolling mill for example, the simulation of the dynamical rolling force is performed, then the hysteresis variation characteristic between the rolling force and the vibration amplitude of roller under the change of the factors such as roller radius, roller speed, forward tension, backward tension, entry thickness and so on. It can be indicated from the simulation results that the incessant accretion of the roller radius will lead to the enlargement of the hysteresis region, which means that the increment of the energy dissipation of the system. However, minishing the roller speed and the entry thickness of the steel plate can narrow the hysteresis region, reducing the energy dissipation. Besides, the characteristic of micro-tension manipulation of hot tandem mill is verified by analysing the disciplinarian of the hysteresis curves under the variation of the forward tension and the backward tension. The results can be used to study and inhibit the rolling mill vibration.