Abstract
The structure and working principle of a new hybrid magnetic bearing is introduced in this paper. To overcome the drawbacks of finite element method(FEM) in parameter design of hybrid magnetic bearing, a method based on the equivalent magnetic circuit method is proposed. The calculating equation and procedure for all parameters of the hybrid magnetic bearing are deduced in detail. The feasibility of the proposed method is verified through an example and the influence of the air gap length on other parameters is studied. The distribution of magnetic flux in the air gaps calculated by ANSYS is in good agreement with the design goal, which validates the proposed method.
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