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.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2008年第10期1158-1162,共5页
Journal of University of Science and Technology Beijing
