Design and Analysis of a Double Coaxial Magnetic Coupling to Improve Torque Density

Akcay, Yusuf; Tweedy, Oliver; Giangrande, Paolo; Galea, Michael

Abstract

Coaxial magnetic couplings are an attractive alternative to traditional mechanical machine couplings which bring several desirable advantages but are limited by their relatively low torque density and torque to mass ratio. The optimum magnetic design of a coaxial magnetic coupling possesses a significant volume of inactive material due to the radius of the permanent magnet arrays. In this paper, the torque density of a coaxial magnetic coupling is increased by up to 82% by utilizing a second set of permanent magnet rings to form a double coaxial magnetic coupling. The proposed design enhancement achieves the aim of reducing the total volume of the coupling, whilst maintaining the same mass and peak torque transmission capacity.

Citation

Akcay, Y., Tweedy, O., Giangrande, P., & Galea, M. (2021). Design and Analysis of a Double Coaxial Magnetic Coupling to Improve Torque Density. In IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society 13-16 Oct. 2021. https://doi.org/10.1109/iecon48115.2021.9589169

• Presentation Conference Type: Edited Proceedings
• Conference Name: IECON 2021 - 47th Annual Conference of the IEEE Industrial Electronics Society
• Start Date: Oct 13, 2021
• End Date: Oct 16, 2021
• Acceptance Date: Dec 1, 2020
• Online Publication Date: Nov 10, 2021
• Publication Date: Oct 13, 2021
• Deposit Date: Jun 15, 2023
• Publicly Available Date: Jul 6, 2023
• Publisher: Institute of Electrical and Electronics Engineers
• Book Title: IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society 13-16 Oct. 2021
• ISBN: 9781665402569
• DOI: https://doi.org/10.1109/iecon48115.2021.9589169
• Public URL: https://nottingham-repository.worktribe.com/output/21912465
• Publisher URL: https://ieeexplore.ieee.org/document/9589169