Design and Experimental Testing of a Magnetic Gear for an Electric Aircraft Drivetrain

Published In

IEEE Transactions on Industry Applications

Document Type

Citation

Publication Date

3-26-2023

Abstract

This paper presents the magnetic, thermal and mechanical design details as well as testing result for a high mass torque density coaxial magnetic gear (MG). The MG was designed for use in an electric aircraft application and has a 12.4:1 gear ratio. The MG was designed to be competitive with a mechanical equivalent aircraft gear and had a calculated total mass torque density of 53 Nm/kg with a rated torque of 229 Nm. The proof-of-principle MG used Garolite support parts, rather than carbon fiber and due to dimensional differences, the tested MG was shown to achieve a 23.5 Nm/kg torque density. The importance of using laminated magnets and the importance of accounting for both parallel and in-plane eddy current losses within the MG is highlighted.

Rights

© 2023 IEEE

DOI

10.1109/TIA.2023.3260060

Persistent Identifier

https://archives.pdx.edu/ds/psu/39696

Publisher

IEEE

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