Nonlinear vibration characteristics of a rolling mill system considering the roughness of rolling interface

被引：0
|
作者：
Sun Y. [1 ]
Xiao H. [1 ]
Xu J. [1 ]
机构：
[1] Collaborative Innovation Center of Steel Technology, Beijing University of Science and Technology, Beijing
来源：
Xiao, Huifang | 1600年 / Chinese Vibration Engineering Society卷 / 36期
关键词：
Nonlinear; Rolling mill; Rough interface; Vertical vibration;
D O I：
10.13465/j.cnki.jvs.2017.08.018
中图分类号：
学科分类号：
摘要：
The surface topography of the rolling interface can change the interface dynamics, and influences the dynamic response of a rolling mill system. Considering the roughness of the rolling interface, the nonlinear dynamic model of the rolling mill system was established. The nonlinear stiffness and natural frequency characteristics of the rolling system with different rough surface topography were calculated and compared with the traditional rolling mill model using Duffing oscillator to describe the interface stiffness. The main resonance amplitude-frequency characteristics of the rolling mill system were solved by using the method of multiple scales, and the expression of the jump frequency and the corresponding amplitude of the forced vibration response were derived. The influence of the rolling surface roughness, excitation load, nonlinear stiffness ratio and damping on the dynamic response characteristics of the rolling mill was analyzed. The results provide theoretical reference for suppressing rolling mill vibration. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：113 / 120
页数：7
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