An Analytical Study on the Magnetic Levitation System Using a Halbach Magnet Array

Halbach 배열 영구자석을 이용한 자기 부상계의 해석에 관한 연구

  • 문석준 (한국기계연구원 시스템엔지니어링연구본부) ;
  • 윤동원 (한국기계연구원 지능형생산시스템연구본부) ;
  • 조흥제 (한국기계연구원 시스템엔지니어링연구본부) ;
  • 박성환 (한국기계연구원 시스템엔지니어링연구본부) ;
  • 김병현 (한국기계연구원 시스템엔지니어링연구본부)
  • Published : 2007.11.20


Typically, three types of levitation technologies are applied to magnetic levitation systems: electromagnetic suspension, electrodynamic suspension, and hybrid electromagnetic suspension. A Halbach array is a special arrangement of permanent magnets which augments the magnetic field on one side of the device while cancelling the field to near zero on the other side. The application of this Halbach array magnet to the electrodynamic suspension has been recently studied in order to increase the levitation capability. This paper is focused on an analytical method of the magnetic levitation system using Halbach array magnet. The suitability of the proposed method is verified with comparing to the finite element method. In addition, dynamic stability of the magnetic levitation system is discussed. From this study, it is confirmed that the proposed method provides a reasonable solution with less computation time compared to the finite element method and the magnetic levitation system using Halbach array magnet is stable dynamically.


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