Journal of Institute of Convergence Technology (융복합기술연구소 논문집)

Institute of Convergence Technology (한국교통대학교 융복합기술연구소)
권호 표지
DOI QR코드

DOI QR Code

Influence of Harmonic Modulator Shape on the Cogging Force of Magnetic Gear

고조파 조절기 형상이 자석 기어의 코깅 자기력에 미치는 영향 분석

  • Kwangsuk, Jung (Department of Mechanical Engineering, Korea National Univ. of Transportation)
  • 정광석 (한국교통대학교 기계자동차항공공학부 기계공학전공)
  • Received : 2022.10.21
  • Accepted : 2022.11.09
  • Published : 2022.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

The reduction ratio of the magnetic gear is determined by the ratio of the number of poles between the high-speed permanent magnet layer and the low-speed permanent magnet layer. In general, it is known that the greater the least common multiple of both poles, the smaller the torque ripple called by cogging of the magnetic force generated in the magnetic gear. However, little is known about the effect of the harmonic modulator that filters the magnetic field in the magnetic gear to magnetically couple the high-speed side and the low-speed side except for the number of poles. In this study, torque ripple characteristics according to changes in modulator shape such as opening ratio and tooth thickness are analyzed using a finite element analysis tool.

Keywords

Acknowledgement

본 연구는 2022년도 한국교통대학교 교내연구비의 지원을 받아 수행한 연구임.

References

  1. P. Rasmussen, T. Andersen, F. Jorgensen, and O. Nielsen, "Development of a High-Performance Magnetic Gear", IEE Trans. on Industry Applications 41 (3), p.764, 2005.
  2. S. Mezani, K. Atallah, and D. Howe, "A HighPerformance Axial-Field Magnetic Gear", J. of Applied Physics 99 (8), 08R303, 2006.
  3. M. S. Kim and K. S. Jung, "Magnet Gear With Two-Axial Magnetic Paths", J. Korean Soc. Precis. Eng. 31 (6), p.543, 2014.
  4. K. S. Jung, "Speed Control of The Magnet GearBased Speed Reducer For Non-contact Power Transmission", J. of the Korea Academia-Industrial cooperation Society 17 (7), p.380, 2016.
  5. H. H. Won and K. S. Jung, "Power Transmission Characteristics of the Magnetic Gear Reducer with a Variable Gear Ratio", J. Korean Soc. Precis. Eng. 36(1), p.45, 2019.
  6. K. Atallah, S. D. Calverley, and D. Howe, "Design, Analysis and Realization of a High Performance Magnetic Gear", IEE Proc.-Electr. Power Appl. 151 (2), p.135, 2004.
  7. K. S. Jung, "Magnetic Force Characteristics of the Speed Reducer using Magnetic Focusing", J. of Institute of Convergence Technology 11 (1), p.7, 2021.