Research and Development of Magnetic Bearing Flywheels for Attitude Control of Spacecraft

  • Atsushi Nakajima


Magnetic bearings for space and industrial applications have undergone considerable development in laboratories and industries. Since 1978, several types of magnetic bearings have been manufactured and tested in National Aerospace Laboratory (NAL), concentrating on the development of the magnetic bearings utilizing permanent magnets and their applications for space. Two degree-of-freedom (DOF) radially controlled magnetic bearings is a candidate of practical use as attitude control actuator of spacecraft. In order to evaluate the characteristics of this type magnetic bearings, on-orbit experiments under zero g condition were performed, i.e. magnetic bearing flywheel developed by NAL was launched by H-I rocket TF#1 into a 1500 km circular orbit on summer of 1986 and several experiments were carried out successfully. This paper summarizes the activities of NAL for research and development of magnetic bearings.


Electro Magnet Dupin 


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  1. 1.
    Hagiwara, S. tests of magnetically suspended flywheel for spacecraft(2nd report). JSME No.810–4 (1981), pp.67–69 (in Japanese).Google Scholar
  2. 2.
    Tsuchiya, K. Characteristics of Passively Stabilized Rotor Suspended by magnetic Bearing, (to be published).Google Scholar
  3. 3.
    Murakami, C. Flat Magnetic Bearing Reaction Wheel. 14th ISTS, Tokyo, pp647–654, 1984.Google Scholar
  4. 4.
    Murakami, C. Compact Type Model of 2-Axis Controlled Magnetic Bearing Reaction Wheel. 15th ISTS, Tokyo, pp.799–804 1986.Google Scholar
  5. 5.
    Nakajima, A. and Development of Magnetic Bearings. 16th ISTS, Sapporo, 1988.Google Scholar
  6. 6.
    Murakami, C. 0n-0rbit Experimental Plan of a Magnetic Bearing Flywheel. 15th ISTS, Tokyo, pp.793–798 1986.Google Scholar
  7. 7.
    Yabuuchi, K. Compact Magnetic Bearing for Gimballed Momentum Wheel. Proc. of 17th AMS, JPL, PP.333–342, May, 1983.Google Scholar
  8. 8.
    Inoue, M. Active Magnetic Bearing Flywheel. Proceedings of the 28th Space Sciences and Technology Conference, Sendai, 2D8 pp.342–343, 1984 (in Japanese).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • Atsushi Nakajima
    • 1
  1. 1.Space Technology Research GroupNational Aerospace LaboratoryTokyoJapan

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