Abstract
In this paper, innovative axial magnetic levitation bearings with high redundancy and low heating characteristics are designed for axial magnetic bearings, the design criteria for stacked redundant axial magnetic bearings are proposed, and a finite element model of innovative axial magnetic levitation on bearings is established to conduct the combined thermal and magnetic simulation analysis of innovative axial magnetic levitation bearings, thus analyzing temperature field and eddy current energy consumption distribution of the structure. A comparative analysis is also performed on temperature field and eddy current energy consumption distribution of classic axial magnetic bearings with the same volume. The study shows that, under the same volume and current conditions, the eddy current loss generated by the stacked six-ring structure is smaller than that generated by the traditional concentric two-ring structure, and the temperature rise of the stacked six-ring structure is smaller than that of the traditional concentric two-ring structure.
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