The challenges of miniaturisation for a magnetic bearing wheel

Details The challenges of miniaturisation for a magnetic bearing wheel The challenges of miniaturisation for a magnetic bearing wheel

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.480...17s&link_type=abstract

In: Proceedings of the 9th European Space Mechanisms and Tribology Symposium, 19-21 September 2001, Liège, Belgium. Compiled by

Computer Science

Mechanisms Miniaturisation

Scientific paper

Reaction and momentum wheels have become standard equipment for three-axis attitude control of conventional satellite classes like those used for telecommunication and remote sensing missions. Owing to very compact mechanical designs and highly integrated electronics, wheels are now also more and more interesting for small satellites in the mass range up to about 200 kg with increasingly demanding requirements on attitude control. In this context, the development of a miniature wheel with a magnetic bearing is discussed. The paper focuses on the magnetic bearing design process, using magnetic field CAE tools, and on the overall wheel design. A prototype of a compact magnetic bearing wheel, currently under construction, is presented. Moreover, control aspects of the magnetic bearing and the drive motor design are described, and an outlook on potential further improvements and future development steps is given.

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