Simulation study of the magnetic coupling between radial magnetic gears

Author

Yao, Y.D. ; Huan, D.R. ; Hsieh, C.C. ; Chiang, D.Y. ; Wang, S.J.

Author_Institution

Inst. of Phys., Acad. Sinica, Taipei, Taiwan

Volume

33

Issue

2

fYear

1997

fDate

3/1/1997 12:00:00 AM

Firstpage

2203

Lastpage

2206

Abstract

The torque of magnetic coupling with different magnetic poles has been investigated by theoretical computations with two dimensional modeling processes of finite element analysis. The torque is sensitive to the number of magnetic poles, the material of the magnetic gears, and the distance between the magnetic gears. For a 2 mm separation distance of two magnetic gears with 20 mm radius, the maximum torque occurs between 6 and 20 poles which is dependent on the thickness of the iron yoke inside the magnets, and on the magnetization configuration within a pole of the magnets. This is explained by analyzing the magnetic coupling strength of each pole. Finally, the computer calculation is tested using an experimental data taken from a sintered NdFeB magnetic gear

Keywords

digital simulation; electrical engineering computing; finite element analysis; magnetic devices; magnetisation; 2 mm; 20 mm; 2D finite element analysis; NdFeB; computer calculation; iron yoke thickness; magnetic coupling; magnetic coupling strength; magnetic gears separation distance; magnetic poles; magnetization configuration; radial magnetic gears; sintered NdFeB magnetic gear; Computational modeling; Couplings; Finite element methods; Gears; Iron; Magnetic analysis; Magnetic materials; Magnetic separation; Magnets; Torque;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.582770

Filename

582770