View in EDS

Performance analysis and optimization of a new dual-modulated magnetic gear composite generator.

Saved in:
Bibliographic Details
Title: Performance analysis and optimization of a new dual-modulated magnetic gear composite generator.
Authors: Chen, Ming1 (AUTHOR), Zheng, Zheng1 (AUTHOR), Wang, Jungang1 (AUTHOR) mewjg@ecjtu.edu.cn, Mo, Rui Na2 (AUTHOR), Wang, Shizhao3 (AUTHOR)
Source: Journal of Mechanical Science & Technology. Apr2026, Vol. 40 Issue 4, p2751-2763. 13p.
Subjects: Magnetic flux, Torque, Finite element method, Magnetic properties, Response surfaces (Statistics), Magnetic coupling
Abstract: Axial magnetic gear compound motors offer high torque density and compactness but still face limitations such as weak modulation capability, low harmonic utilization, and restricted torque output. This paper proposes a novel dual-modulation axial magnetic gear compound motor (MEAMG) featuring a sum–difference flux-modulation ring and an armature stator integrated within the high-speed rotor. The resulting four-layer concentric topology enables simultaneous axial and radial flux paths without increasing machine volume, significantly enhancing flux linkage and torque generation. The MEAMG's operating principle is analyzed using magnetic field modulation theory, and its electromagnetic performance is evaluated through finite-element modeling. A Box–Behnken design (BBD)-based response surface method is further employed to optimize key structural parameters. Simulation results confirm substantial improvements in no-load back EMF and torque performance, demonstrating the effectiveness of the proposed compact dual-modulation design. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Mechanical Science & Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:Axial magnetic gear compound motors offer high torque density and compactness but still face limitations such as weak modulation capability, low harmonic utilization, and restricted torque output. This paper proposes a novel dual-modulation axial magnetic gear compound motor (MEAMG) featuring a sum–difference flux-modulation ring and an armature stator integrated within the high-speed rotor. The resulting four-layer concentric topology enables simultaneous axial and radial flux paths without increasing machine volume, significantly enhancing flux linkage and torque generation. The MEAMG's operating principle is analyzed using magnetic field modulation theory, and its electromagnetic performance is evaluated through finite-element modeling. A Box–Behnken design (BBD)-based response surface method is further employed to optimize key structural parameters. Simulation results confirm substantial improvements in no-load back EMF and torque performance, demonstrating the effectiveness of the proposed compact dual-modulation design. [ABSTRACT FROM AUTHOR]
ISSN:1738494X
DOI:10.1007/s12206-026-0332-8