Comparative Analysis Between Axial and Coaxial Magnetic Couplings

Akcay, Y.; Giangrande, P.; Gerada, C.; Galea, M.

Abstract

The adoption of magnetic couplings enables the transmission of mechanical power relying on the magnetic fields interaction rather than a physical mechanical connection. Hence, the contactless speed/torque transmission leads to improvements in terms of efficiency and reliability, due to the absence of wear out between moving parts. For a specific application, the most appropriate magnetic coupling configuration (i.e. axial or coaxial) is usually identified through a trade-off study. In this paper, a comparative analysis between axial and coaxial magnetic couplings is presented using a two-dimensional subdomain approach. Based on a full-parametric geometry, two 2D analytical tools are developed for each magnetic coupling configuration. These analytical tools are validated against finite element results in order to prove their effectiveness. Finally, the implemented models are used to investigate the impact of parameters, such as permanent magnet span, airgap thickness and number of pole-pairs, on the maximum static torque.

Citation

Akcay, Y., Giangrande, P., Gerada, C., & Galea, M. (2020, September). Comparative Analysis Between Axial and Coaxial Magnetic Couplings. Presented at 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020), Online Conference

• Presentation Conference Type: Edited Proceedings
• Conference Name: 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020)
• Start Date: Sep 15, 2020
• End Date: Sep 17, 2020
• Publication Date: 2021
• Deposit Date: Jun 15, 2023
• Publicly Available Date: Jul 6, 2023
• Publisher: Institution of Engineering and Technology (IET)
• Book Title: The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020)
• ISBN: 9781839535420
• DOI: https://doi.org/10.1049/icp.2021.1147
• Public URL: https://nottingham-repository.worktribe.com/output/21912611
• Publisher URL: https://digital-library.theiet.org/content/conferences/10.1049/icp.2021.1147
• Related Public URLs: https://ieeexplore.ieee.org/document/9545251