F4冷轧机工作辊耦合振动分析

Coupled Vibration Analysis on F4 Working Rolls of Cold Rolling Mill

在近几年对轧机的振动研究中,冷轧机的耦合振动研究已经逐渐成为了新的热点和难点。由于在轧机工作辊的工作界面处会发生三种不同属性振动,将以某厂F4冷轧机工作辊为研究对象,建立一种关于冷轧机工作辊三种属性振动的耦合振动简化模型。利用MATLAB计算该耦合模型的固有频率,并与耦合前分别进行比较,发现只有垂直水平振动固有频率相对有明显变化;依据耦合固有频率得到耦合振动的主振型和主振型曲线并对其进行分析,得出三种属性振动之间的相互影响。

In the last a few years in the research on the vibration of cold rolling mill,the research on the coupled vibration of cold rolling mill has become a new hot and difficultissue.Because three different properties vibration happened on the interface of work rolls,to work rollof F4 cold rolling mill as the research object,of some plant,itestablished a simplifiedmodel of work roll of the coupled vibration of three different vibrations.Calculated the natural frequency of coupled models with MATLAB,madeand analyzed the comparison with the natural frequency before coupled,finding that the natural frequency of vertical and horizontal vibration changed much comparably;based on coupled natural frequency of coupled vibration,got the vibration mode and the curve.Throughtheanalysis ofvibration modeand curve of each natural frequency,drawthe conclusion about mutual effect between the threedifferent vibrations.