Theoretical computations of the magnetic coupling between magnetic gears

Author

Yao, Y.D. ; Huang, D.R. ; Lin, S.M. ; Wang, S.J.

Author_Institution

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

Volume

32

Issue

3

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

710

Lastpage

713

Abstract

The torque of magnetic coupling with different magnetic poles has been investigated by theoretical computations with both 2D and 3D modelling processes of the finite element analysis. The torque can be increased by increasing the number of poles for magnetic coupling between magnetic gears with 2 mm separation distance, provided that the number of poles is less than 10. However, the torque is inversely proportional to the number of poles when its number is larger than 10. This phenomenon is explained by analyzing the magnetic coupling strength of different poles. The 3D computer simulations are in excellent agreement with the experimental values. The 2D computer simulations can be improved by a “two magnetization vectors within a pole” technique; i.e. by properly rotating the angle between the two magnetization vectors

Keywords

digital simulation; electrical engineering; electrical engineering computing; electromagnetic induction; finite element analysis; magnetic devices; permanent magnets; simulation; torque; 2 mm; 2D computer simulations; 2D modelling; 3D computer simulations; 3D modelling; experimental values; magnetic coupling; magnetic gears; magnetic poles; magnetization vectors; separation distance; torque; Bonding; Computer simulation; Couplings; Finite element methods; Gears; Magnetic analysis; Magnetic devices; Magnetic separation; Magnetization; Magnets; Torque;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.497338

Filename

497338