Computer Science – Performance
Scientific paper
Jan 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002iaf..confe.891v&link_type=abstract
IAF abstracts, 34th COSPAR Scientific Assembly, The Second World Space Congress, held 10-19 October, 2002 in Houston, TX, USA.,
Computer Science
Performance
Scientific paper
Innovative concepts become desirable to anticipate the emerging demand/cost of near and long term space missions. The synergistic system design could be an attractive approach for future spacecraft to cope with their demands. The idea of combining the Attitude Control System and the conventional Electrical Power System is presented here. The Combined Energy and Attitude Control System (CEACS) consisting of a double counter rotating flywheel assembly in the pitch axis, is investigated for small satellites in this article. First the standard design principle, miniaturization of large satellite components (e.g. flywheel), is viewed to verify the possibilities of down scaling. Then, the performance of CEACS is demonstrated for a selected configuration and mission. Another idea of incorporating the Attitude Control System into the Thermal Control System is investigated also in this paper. The Combined Attitude and Thermal Control System (CATCS) consisting of a "fluid wheel" and permanent magnets, couples an existing on-board temperature gradient with the magnetohydrodynamic (MHD) effects for its operation. The CATCS is proposed mainly for satellites which require active thermal controllers. The performance of CATCS is demonstrated for a reference configuration and mission. Both investigated systems, CEACS and CATCS, are potential synergisms for future spacecraft.
Fasoulas Stefanos
Varatharajoo Renuganth
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