Browse > Article

Implementation of permanent Magnetic Repulsion Type of Magnetic Levitation Table Using One Degree-of-freedom Active Control  

Jo, Yeong-Geun (미래산업주식회사 미래연구센터)
Choe, Gi-Bong (한국기계연구원 지능형 정밀기계연구부 로봇제어그룹)
Tadahiko Shinshi (동경공업대학(일본) 정밀공학연구소)
Akira Shimokohbe (동경공업대학(일본) 정밀공학연구소)
Publication Information
Journal of the Korean Society for Precision Engineering / v.19, no.7, 2002 , pp. 125-132 More about this Journal
Abstract
This paper shows an experimental magnetic levitation table using one degree-of-freedom active control. The magnetic levitation table using repulsions of permanent magnets was theoretically presented already. Thus the objective of this paper is to prove stable levitation with only one degree-of-freedom active control experimentally. For the design of the system, at first, permanent magnets are selected. Secondly, the spring constants of the virtual spring are obtained by simulation. Thirdly, the moving magnets are arranged using a stable layout relation. Fourthly, a linear voice coil motor is designed. Finally, the magnetic levitation system is manufactured. The phenomenon of stable levitation in the manufactured table is proven by means of dynamic time and frequency responses. The differences between the theoretical natural frequencies and experimental ones are analyzed. Also, stable range in the control direction is shown experimentally.
Keywords
Permanent magnet; Repulsion; Magnetic levitation; Stable layout relation; Linear voice coil motor;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Jayawant B.V., 'Electromagnetic suspension and levitation techniques,' Proceedings of The Royal Society of London, Vol. A416, pp. 245-320, 1988
2 Kagan D., 'Building a magnetic levitation toy,' Physics Teacher, Vol. 31, pp. 432-433, 1993   DOI   ScienceOn
3 Simon M.D., Heflinger L.O., Ridgway S.L., 'Spin stabilized magnetic levitation,' American Journal of Physics, Vol. 65, No. 4, pp. 286-292, 1997   DOI   ScienceOn
4 Berry M.V., 'The Levitron$^{TM}$: an adiabatic trap for spins,' Proceedings of The Royal Society of London, Vol. A452, pp. 1207-1220, 1996
5 최기봉, 조영근, 신시 타다히코, 시모코베 아키라, '영구자석에 의한 반발형 자기부상 테이블의 안정성 해석,' 한국정밀공학회지, Vo. 19, No. 7, pp. 36-42, 2002   과학기술학회마을
6 Jones T.B., Washizu M., Gans R., 'Simple theory for the Levitron$^{\circledR}$,' Journal of Applied Physics, Vol. 82, No. 2, pp. 883-888, 1997   DOI   ScienceOn
7 Mukhopadhyay S.C., Ohji T., Iwahara M., Yamada S., Matsumura F., 'Disturbance attenuation and H$^{\infty}$ control of repulsive type magnetic bearing,' IEEE Transactions on magnetics, Vol. 33, No. 5, pp. 4233-4235, 1997   DOI   ScienceOn
8 Polgreen G., 'Rail-ways with magnetic suspension,' The Engineer, Vol. 226, pp. 632-636, 1968
9 Carabelli S., Cerruti F., Delprete C., Majo F.D., Genta G., Zanolli S., 'A two active-axes suspension for maglev vehicles,' Proc. of the 5th International Symposium on Magnetic Bearings, Kanazawa, Japan, pp. 357-362, 1996
10 Carabelli S., Delprete C., Genta G., Zanolli S., 'Control of a two active-axes suspension for maglev vehicles,' Proceedings of the American Control Conference, Albuquerque, New Meixco, pp. 3962-3966, 1997   DOI
11 최기봉, 김수현, 곽윤근, '컴플라이언스를 갖는 웨이퍼 탐침 시스템용 미동 매니퓰레이터,' 한국정밀공학회지, Vol. 14, No. 9, pp. 68-79, 1997   과학기술학회마을