A Study on passive magnetic bearing with Halbach magnetized array

摘要：

To improve the stiffness of permanent magnetic bearings with limited magnet material, a configuration of axial magnetic bearing with segmented Halbach array is proposed. Only radial and axial magnetization is needed, which is much easy to realize compared to ideal Halbach magnetization. Its suspension force and stiffness are studied using FEM, and some optimization is also made. The simulation results show that this kind of axial magnetic bearing with a set of given parameters has a maximal stiffness as high as 2×106N/m. Having a more complex structure compared to magnetic bearing with only entire magnet bulk, this magnetic bearing is more appropriate to the application that has a high demand for stiffness and a strict volume constraint.

关键词： Finite Element Method Halbach magnetic field passive magnetic bearing

作者: Xu Feipeng Li Tiecai Liu Yajing

作者单位: Electrical Engineering College, Harbin Institute of Technology, Harbin, Heilongjiang province, China

会议类型: 国际会议

会议名称: 11th International Conference on Electrical Machines and Systems(第11届国际电机与系统会议)

会议地点: 武汉

会议语种:英文

页码: 1-4

在线出版日期: 2008-10-17（万方平台首次上网日期，不代表论文的发表时间）