摘要
在考虑平整机工作界面摩擦状态的基础上,建立了轧辊水平振动的非线性力学模型,分析了界面摩擦状态的变化对轧辊水平运动的影响.应用相平面法分析了轧辊水平运动规律,并确定了粘着-滑动运动的极限环,定性地分析了轧辊水平运动的动力学特性.通过分析单辊驱动平整机水平颤振产生的条件及机理,得出了影响轧辊颤振的因素.
A nonlinear dynamic model of horizontal vibration was derived based on the analysis of friction state on rolling contact interface. The effects of the transform of friction state on the horizontal movement of a roll were discussed. Phase portrait technique was used to analyze the horizontal motion of a roll and determine a limit circle which could describe the path of sticking-sliding motion. The dynamic characteristics and mechanism of horizon chatter were analyzed. The critical parameters able to divide up the sticking-sliding motion requisition in the parameters plane were deduced.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2006年第10期973-977,共5页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金资助项目(No.59835170)
关键词
平整机
单辊驱动
颤振
极限环
相平面法
temper mill
single-roll drive
chatter
limit circle
phase portrait technique
