The authors would like to thank the JMAG corporations for the use of their FEA software. This material is based upon work supported by the Department of Energy under Grant DE-EE0006801 as well as the North Carolina Coastal Studies Institute.
Electromagnetism -- Mathematical models, Magnetic suspension, Rotors -- Design and construction, Magnetic coupling, Permanent magnets
This paper derives the closed form 3-D analytical torque equations for an ideal radial Halbach rotor magnetic coupling. The performance of the radial Halbach coupling is then compared with an ideal axial Halbach rotor coupling. The closed form equations and comparison gives insight into the upper torque density limits of Nd-Fe-B based magnetic devices.
Li, Kang; Bird, Jonathan; and Acharya, Vedanadam M., "Ideal Radial Permanent Magnet Coupling Torque Density Analysis" (2017). Electrical and Computer Engineering Faculty Publications and Presentations. 420.