摘要
鉴于初轧机轧制过程中振动的非线性和边界可动，建立了初轧机在轧制过程中主传动系统的扭转自激振动模型·通过对所建模型的研究表明，该系统具有多种非线性振动形式，这为分析、诊断及控制这一类具有混沌行为系统的振动提供了理论依据·
A simple dynamic model based on the self excited vibration in rolling mills was presented. The vibrational system is nonlinear and its boundaries are oscillating. There are different forms of nonlinear vibrations in the system. Periodic, quasi periodic and chaotic vibrations can be easily observed. Such nonlinear dynamic techniques as Poincare sections were employed to ascertain the different vibrational forms. The frictional coefficients and boundaries vibrating frequencies were treated as the system parameters and the chaotic behavior of the model was observed near the resonant region. Chaotic vibration and other phenomena found in the mechanical system can be used as the key information to diagnose and control the vibrations of such systems.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1999年第4期376-379,共4页
Journal of Northeastern University(Natural Science)
基金
教育部博士点基金
关键词
机械系统
自激振动
机械振动
轧制
混沌行为
mechanical system, self excited vibration, boundary, chaotic behavior.
