轴向混合磁力轴承的刚度与阻尼特性研究  

Stiffness and damping characteristics of axial hybrid magnetic bearing

作　　者：许贞俊 XU Zhenjun

机构地区：[1]贵州装备制造职业学院,贵州贵阳550000

出　　处：《现代机械》2022年第4期76-79,共4页Modern Machinery

摘　　要：针对电磁部分与刚度和阻尼的关系进行了研究,得出了本磁力轴承在PD控制下的频率特性和频域里力及位移的关系,为本混合轴向磁力轴承控制系统的设计做出了初步方案。同时根据有限元中磁力轴承动力学表征的特点,将磁力轴承等效为弹簧,得出了表征刚度与表征阻尼,为有限元分析边界条件的加载提供了依据。The relationship between the electromagnetic part and the stiffness and damping of the magnetic bearing is studied,and the frequency characteristics of the magnetic bearing under PD control and the relationship between the force and displacement in the frequency domain are obtained.A preliminary design scheme of the control system of the hybrid axial magnetic bearing has been made.According to the dynamic characteristics of the magnetic bearing,the magnetic bearing is equivalent to a spring,and the characteristic stiffness and damping are obtained to provide basis for the loading of the boundary conditions for finite element analysis.

关 键 词：磁力轴承 刚度 阻尼 控制系统 

分 类 号：TH133.3[机械工程—机械制造及自动化]