Simulation study of the magnetic coupling between radial magnetic gears
- 1 March 1997
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Magnetics
- Vol. 33 (2) , 2203-2206
- https://doi.org/10.1109/20.582770
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
This publication has 6 references indexed in Scilit:
- Theoretical computations for the torque of magnetic couplingIEEE Transactions on Magnetics, 1995
- A three-dimensional model for computing the torque of radial couplingsIEEE Transactions on Magnetics, 1995
- The radial magnetic coupling studies between magnetic gearsIEEE Transactions on Magnetics, 1995
- Effect of magnetization profiles on the torque of magnetic couplingJournal of Applied Physics, 1994
- Formulas for the force and torque of axial couplingsIEEE Transactions on Magnetics, 1993
- A new type of permanent magnet couplingIEEE Transactions on Magnetics, 1981