1. The effect of permanent magnet position on axial and radial load capability in axial hybrid magnetic bearing
- Author
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Zhang Yunpeng, Liu Shuqin, Houfu Wang, and Gao Shuning
- Subjects
010302 applied physics ,Materials science ,business.industry ,Mechanical Engineering ,Magnetic bearing ,Structural engineering ,Condensed Matter Physics ,01 natural sciences ,Electronic, Optical and Magnetic Materials ,Mechanics of Materials ,Position (vector) ,Magnet ,0103 physical sciences ,Electrical and Electronic Engineering ,business - Abstract
The axial and radial load capacity of axial hybrid magnetic bearing (HMB) is critical for the magnetic levitation system. In this paper, the effect of permanent magnet (PM) position on axial and radial magnetic force and stiffness in axial HMB is investigated. Six different configurations are considered and the equivalent magnetic circuits of HMBs for each configuration is built and studied based on the distribution of magnetic field and magnetic leakage. The dependence of axial and radial magnetic force and stiffness on the axial displacement, radial displacement and control current is calculated and investigated for different configurations. To validate the calculated results, the axial and radial magnetic forces for each configuration are simulated by finite element method. A good agreement between the calculated and simulated results validated the proposed magnetic circuit models.
- Published
- 2021