CSP轧机万向接轴弯扭耦合振动  

Coupling of lateral and torsional vibration for the spindle of a CSP mill

作　　者：闫晓强[1] 刘丽娜[1] 曹曦[1] 史灿[1] 

机构地区：[1]北京科技大学机械工程学院,北京100083

出　　处：《北京科技大学学报》2008年第10期1158-1162,共5页Journal of University of Science and Technology Beijing

摘　　要：以连续分布质量的轧机万向接轴为研究对象,考虑了万向接轴的倾角、自重、质量偏心以及阻尼的影响,从动力学角度建立了万向接轴的弯扭耦合振动方程,并对实测的数据给出了理论解释.从所得到的微分方程可以看出:当轴系存在不平衡时,扭转振动与弯曲振动之间存在着很明显的相互耦合关系;当轴系没有不平衡时,扭转振动会对弯曲振动产生影响,而弯曲振动对扭转振动没有影响.The spindle of a CSP mill was researched as continuous distributed mass. The spindle＇s angle, self-weight, mass unbalance and damp were all considered as influential factors. The equations of lateral-torsional coupling vibration for the spindle were established based on the dynamical theory to theoretically interpret field testing data. According to the differential equation of the mathematic model, the following conclusions can be drawn： if unbalance exists, the lateral vibration and torsional vibration are coupled distinctly; if unbalance does not exist, the torsional vibration can affect the lateral vibration, but the lateral vibration has not any effect on the torsional vibration.

关 键 词：CSP轧机 万向接轴 振动耦合 振动方程 分布质量模型 不平衡 

分 类 号：TG333.15[金属学及工艺—金属压力加工] TH113.1[机械工程—机械设计及理论]