单辊驱动平整机水平颤振  

Horizon chatter in a single-roll driving temper rolling mill system

作　　者：侯福祥[1] 张杰[1] 史小路[1] 曹建国[1] 谢建强[2] 谭仁伟[2] 

机构地区：[1]北京科技大学机械工程学院,北京100083 [2]武汉钢铁(集团)公司,武汉430083

出　　处：《北京科技大学学报》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)

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.

关 键 词：平整机 单辊驱动 颤振 极限环 相平面法 

分 类 号：TG333.4[金属学及工艺—金属压力加工] TB123[理学—工程力学]