TY - GEN
T1 - High Performance Halbach Magnetic Couplings for Aircraft Transmission
AU - Sun, Liying
AU - Gao, Xiaohui
AU - Tong, Saisai
AU - Zhao, Zhe
N1 - Publisher Copyright:
© 2026 The Authors.
PY - 2026/3/3
Y1 - 2026/3/3
N2 - With the rapid advancement of More Electric Aircraft (MEA) technologies in modern aeronautics, magnetic couplings have become critical components in power transmission systems. Nevertheless, conventional designs suffer from inherent limitations including excessive weight, bulky dimensions, and high rotational inertia. This paper proposes a novel compact radial Halbach-type magnetic coupling that addresses these challenges through three key innovations: structural optimization of the traditional rotor configuration, magnetic circuit enhancement, and parameter refinement of permanent magnets. Compared to conventional radially magnetized couplings, the proposed design demonstrates a 26% increase in transmitted torque alongside an 18% reduction in overall volume. Finite element simulations reveal a 13% improvement in air-gap magnetic flux density over standard configurations. Furthermore, parametric analysis identifies the magnetic arc length ratio (α) as a critical design variable for torque optimization, while maintaining maximum torque capacity with reduced back-iron thickness. The developed solution achieves exceptional power density for mechanical magnetic transmission systems. Future work will establish a comprehensive mathematical model to further advance Halbach-type magnetic coupling design methodologies and industrial applications.
AB - With the rapid advancement of More Electric Aircraft (MEA) technologies in modern aeronautics, magnetic couplings have become critical components in power transmission systems. Nevertheless, conventional designs suffer from inherent limitations including excessive weight, bulky dimensions, and high rotational inertia. This paper proposes a novel compact radial Halbach-type magnetic coupling that addresses these challenges through three key innovations: structural optimization of the traditional rotor configuration, magnetic circuit enhancement, and parameter refinement of permanent magnets. Compared to conventional radially magnetized couplings, the proposed design demonstrates a 26% increase in transmitted torque alongside an 18% reduction in overall volume. Finite element simulations reveal a 13% improvement in air-gap magnetic flux density over standard configurations. Furthermore, parametric analysis identifies the magnetic arc length ratio (α) as a critical design variable for torque optimization, while maintaining maximum torque capacity with reduced back-iron thickness. The developed solution achieves exceptional power density for mechanical magnetic transmission systems. Future work will establish a comprehensive mathematical model to further advance Halbach-type magnetic coupling design methodologies and industrial applications.
KW - aircraft transmission system
KW - Halbach permanent magnetic coupling
KW - magnetic field optimization
KW - torque density
UR - https://www.scopus.com/pages/publications/105034839457
U2 - 10.3233/ATDE260069
DO - 10.3233/ATDE260069
M3 - 会议稿件
AN - SCOPUS:105034839457
T3 - Advances in Transdisciplinary Engineering
SP - 481
EP - 489
BT - Moving Integrated Product Development to Service Clouds in the Global Economy - Proceedings of the 21st ISPE Inc. International Conference on Concurrent Engineering, CE 2014
A2 - Lei, Xuelin
PB - IOS Press BV
T2 - 16th International Conference of Mechanical and Aerospace Engineering, ICMAE 2025
Y2 - 15 July 2025 through 18 July 2025
ER -