Structure Design and Optimization of the Radial Magnetic Bearing

According to different working environments and functional requirements, radial magnetic bearings (RMBs) have various design methods. Some methods’ lack of effectiveness or accuracy is likely cause significant differences in the structural performance bearings, which will serious problems such as limited bearing capacity complex control. This paper analyzes structure topology a according application scenario RMBs, then proposes general example an 8-pole based on circuit analysis reveals linearity between electromagnetic force current well air gap through finite element influence saturation load structure. After completing preliminary design, we further optimize structure, take genetic algorithm iterate coefficient, summarize prospect. The scheme optimization method proposed this only provide valuable reference for researchers factories when devising RMB devices.