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최정섭(J. S. Choi),경진호(J. H. Kyung),노승국(S. K. Ro),박종권(J. K. Park) 한국생산제조학회 2006 한국공작기계학회 춘계학술대회논문집 Vol.2006 No.-
The design of a miniaturized air spindle system suspended a magnetic bearing is discussed in this paper. We designed and manufactured for the machine tool of micro factory system. The proposed spindle is consisted of air bearing unit for supporting both side of the radial and axial direction and a magnetic bearing unit for controlling in the radial direction. The used air bearing is aero-static type and the equipped magnetic bearing is a homo-polar type magnetic bearing which has 4 poles and 4 coils. This magnetic bearing is located in the top side of the spindle for improvement of damping of air spindle. The diameter and length of the spindle are 84㎜ and 112㎜, respectively. We discussed the performance of an air bearing and a magnetic bearing in analytical and experimental approach.
심포지엄 및 학술연구(學術硏究) 발표요지(發表要旨) : 제1분야: 잡초방제 ; 신규 합성된 N-phenylphtalimide 화합물의 제초활성 및토양 중 잔효지속성
최정섭 ( J. S. Choi ),김태준 ( T. J. Kim ),이병희 ( B. H. Lee ),송재은 ( J. E. Song ),고영관 ( Y. K. Ko ),장해성 ( H. S. Chang ),류재욱 ( J. W. Ryu ),김대황 ( D. W. Kim ),권오연 ( O. Y. Kwon ),조광연 ( K. Y. Cho ) 한국잡초학회 2004 한국잡초학회 별책(학술대회 초록집) Vol.24 No.2
최정섭(J. S. Choi),경진호(J. H. Kyung),노승국(S. K. Ro),김창기(C. K. Kim),박종권(J. K. Park) 한국생산제조학회 2006 한국생산제조시스템학회 학술발표대회 논문집 Vol.2006 No.5
The design of a miniaturized spindle system applied active magnetic bearings(MB) is discussed. The proposed system is consisted of radial and axial magnetic bearings. The radial magnetic bearing is hybrid type, permanent magnet for bias magnetic flux and electromagnet for control current. And the axial magnetic bearing is only used electromagnet. Therefor this system is a 5 degrees of freedom active control system. In this paper, we suggest the design specification, such as stiffness, length and width of each part, including permanent magnet. We will apply this spindle system to micro machine tool system for micro factory.