DOI QR코드

DOI QR Code

Magnetic force Characteristics of the Speed Reducer using Magnetic Focusing

자기 포커싱 방법을 적용한 감속 장치의 자기력 특성에 관한 연구

  • Jung, Kwangsuk (Department of Mechanical Engineering, Korea National Univ. of Transportation)
  • 정광석 (한국교통대학교 기계자동차항공공학부 기계공학전공)
  • Received : 2021.10.14
  • Accepted : 2021.10.28
  • Published : 2021.11.30

Abstract

The magnetic gear, which amplifies the torque by filtering the magnetic field generated by the low-speed permanent magnet with a modulator, can exclude gear contact and can be effectively applied when there are environmental restrictions. In this paper, we discuss the magnetic force characteristics of a magnetic gear using a magnetic focusing array that replaces a general permanent magnet array magnetized in a radial direction along the circumferential direction. The torque increasing effect of the discussed array, known as an arrangement that increases the principal component by focusing a radial magnetic field, is compared with that of a general magnetic gear. In particular, in a magnetic gear using such an array, the sensitivity of torque according to variables is analyzed to see how various variables known as factors affecting torque have an effect.

Keywords

Acknowledgement

본 연구는 2021년도 한국교통대학교 교내연구비의 지원을 받아 수행한 연구임.

References

  1. L. Jian, G. Xu, G., Y. Gong, J. Song, J. Liang, and M. Chang, "Electromagnetic Design and Analysis of a Novel Magnetic-gear-integrated Wind Power Generator using Time-stepping Finite Element Method", Progress in Electromagnetics Research, Vol. 113, p.351-367, 2011. https://doi.org/10.2528/PIER10121603
  2. M. S. Kim and K. S. Jung, "Magnet Gear with Two-axial Magnetic Paths", J. Korean Soc. Precis. Eng., Vol. 31, No. 6, p.543-550, 2014. https://doi.org/10.7736/KSPE.2014.31.6.543
  3. R.C. Holehouse, K. Atallah and J. Wang, "Design and realization of a linear magnetic gear", IEEE Trans. on Magnetics, Vol. 47, No. 10, p.4171-4714, 2011. https://doi.org/10.1109/TMAG.2011.2157101
  4. S.J. Lee and K.S. Jung, "Characteristics study of a magnet gear speed reducer Speed control of the magnet gear-based speed reducer with a unified harmonic modulator", J. of Korean Soc. Manuf. Technol., Vol. 24, No. 3, p.348-354, 2015.
  5. L. Jian and K. Chau, "A coaxial magnetic gear with Halbach permanent-magnet arrays", IEEE Trans. on Energy Conversion, Vol. 25, No. 2, p.319-328, 2010. https://doi.org/10.1109/TEC.2010.2046997
  6. K. Jung, "Speed control of the magnet gear-based speed reducer for non-contact power transmission", J. of Korea Academia-Industrial Cooperation Soc., Vol. 17, No. 7, p.380-388, 2016. https://doi.org/10.5762/KAIS.2016.17.7.380