Design and Analysis of Axial Permanent Magnet Couplings Based on 3D FEM

Magnetic couplings are of considerable interest for many industrial applications because they can transmit torque from a primary driver to a follower, without mechanical contact. In particular, as they allow torque to be transmitted across a separation wall, axial permanent magnetic couplings (APMCs) are well suited for use in isolated systems such as vacuums or high-pressure vessels. This paper deals with the design and analysis of APMCs based on 3D finite element (FE) analysis. Finally, confirming that 3D FE results for the torque of the designed APMCs are validated extensively with the measured results, the validity of the design of the APMCs that satisfies the required specifications is confirmed. With the many advantages mentioned above, a permanent magnet coupling can be applied to a variety of industries.