Research on Axial Magnetic Force and Rotor Mechanical Stress of an Air-Cored Axial-Flux Permanent Magnet Machine Based on 3D FEM

Due to its compact construction and high power density, the axial-flux permanent-magnet (AFPM) machine with coreless stator has obtained more and more attention and interest from researchers. For an AFPM machine with coreless stator, the axial magnetic attraction force may cause the rotors’ deflecti...

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Bibliographic Details
Published inApplied Mechanics and Materials Vol. 105-107; pp. 160 - 163
Main Authors Cao, Yong Juan, Jin, Long, Huang, Yun Kai
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.01.2012
Subjects
Axial Magnetic Force
Stress Analysis
Coreless Stator
Axial-Flux Permanent-Magnet (AFPM)
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Summary:Due to its compact construction and high power density, the axial-flux permanent-magnet (AFPM) machine with coreless stator has obtained more and more attention and interest from researchers. For an AFPM machine with coreless stator, the axial magnetic attraction force may cause the rotors’ deflection and affect the machine’s reliability. In this paper, the magnetic field and the rotor mechanical strength of a coreless stator AFPM machine are studied. Finite-element method and analytic method are both used to calculate the axial attraction magnetic force between the two rotor discs. Structure finite-element analysis is used to simulate the maximum stress and deflection due to the axial magnetic force. The research is very significant to the power density elevation of the AFPM machine.
Bibliography:Selected, peer reviewed papers from the 2011 International Conference on Vibration, Structural Engineering and Measurement (ICVSEM 2011), October 21-23, 2011, Shanghai, China
ISBN:9783037852644
303785264X
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.105-107.160