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Torque characteristic analysis of slotted disk magnetic couplers
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Chaojun YANG1, 2, Kaixuan WANG1, Yafei GUO1, Zhicheng ZHU1
Journal of Mechanical Transmission | 2026, 50(1) : 1 - 8
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Journal of Mechanical Transmission | 2026, 50(1): 1-8
• Special Topic of Magnetic Transmission •
Torque characteristic analysis of slotted disk magnetic couplers
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Chaojun YANG1, 2, Kaixuan WANG1, Yafei GUO1, Zhicheng ZHU1
Affiliations
  • 1.School of Mechanical Engineering, Jiangsu University, Zhenjiang212013, China
  • 2.State Key Laboratory of Mechanical Transmission for Advanced Equipment, Chongqing University, Chongqing400044, China
Published: 2026-01-15 doi: 10.16578/j.issn.1004.2539.2026.01.001
Outline
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Objective

For slotted disk magnetic couplers, the slotted conductor disk complicates the magnetic circuit during operation, increasing the difficulty of calculating electromagnetic torque. A reliable electromagnetic torque prediction model was established, and its torque characteristics were studied.

Methods

A 18-pole 16-slot disk magnetic coupler was studied. Firstly, via the equivalent magnetic circuit method, induced eddy currents from adjacent and self-magnetic circuits were introduced as a branch into a new model. Considering 3D end effects and combining Ampere's and Kirchhoff's laws, air gap flux and output torque expressions were derived. Secondly, the coupler was simulated and analyzed by the finite element simulation software, obtaining distributions of air gap magnetic field and eddy currents, and torque variations with air gap thickness and speed difference under adjacent eddy current influence. Finally, a test platform was established to verify theoretical and simulation results.

Results

The results show that the results of theoretical calculation, finite element simulation and test are basically consistent. The proposed theoretical model has high accuracy, providing a reliable prediction model for studying the torque performance of such couplers.

Slotted disk magnetic coupler  /  Equivalent magnetic circuit method  /  Output torque  /  Neighboring eddy current  /  Air-gap magnetic field
Chaojun YANG, Kaixuan WANG, Yafei GUO, Zhicheng ZHU. Torque characteristic analysis of slotted disk magnetic couplers[J]. Journal of Mechanical Transmission, 2026 , 50 (1) : 1 -8 . DOI: 10.16578/j.issn.1004.2539.2026.01.001
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Year 2026 volume 50 Issue 1
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Article Info
doi: 10.16578/j.issn.1004.2539.2026.01.001
  • Receive Date：2024-08-14
  • Online Date：2026-05-20
  • Published：2026-01-15
Article Data
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History
  • Received：2024-08-14
  • Revised：2024-11-28
Affiliations
    1.School of Mechanical Engineering, Jiangsu University, Zhenjiang212013, China
    2.State Key Laboratory of Mechanical Transmission for Advanced Equipment, Chongqing University, Chongqing400044, China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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