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This paper propose the stainless retaining cage of the FSCW-SPM servo motors for retaining the PM. Compared to the FSCW-SPM servo motors with normal stainless sleeve, there is low rotor eddy current losses by using the retaining cage. In this paper, the structure strength of the stainless retaining cage is analyzed and proven having the enough reliability.
This paper investigates the production tolerances and variations of the lamination and permanent magnet on the cogging torque of the surface permanent magnet (SPM) machine with mass production. The finite element analysis (FEA) and experiment contrasted analysis method is adopted to deal with the additional component cogging torque, of the 12 slots 10 poles combination SPM machine, caused by production...
This paper deeply discusses the effect of eccentricity, including static, dynamic and mixed eccentricity on the performance of FSCW SPM servo motor analytically and using finite element analysis (FEA) to validation. The effect of different kinds of eccentricity on magnetic field including magnet field and armature reaction field is described with three factor called modulation factor. The frequency...
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