The Nutation Damping Control of a Spacecraft

Details The Nutation Damping Control of a Spacecraft The Nutation Damping Control of a Spacecraft

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jass...11..281l&link_type=abstract

Journal of Astronomy and Space Science, vol. 11, no. 2, p. 281-295.

Astronomy and Astrophysics

Astronomy

Scientific paper

In this paper, the Variable Structure System(VSS) theory with new continuous switching dynamic equation is used to design an automatic controller for the active nutation damping in momentum bias stabilized spacecraft. In the application of VSS theory to a linearized multivariable system with the nutation damping system, there exist some disadvantages such as how to determine the switching gains and how to reduce the chattering phenomina and reaching phase in input and state trajectories. To solve these drawbacks, this paper presents the continuous switching dynamic equation instead if the discontinuous switching logics to obtain the sliding mode. The new design approach is much simpler than the VSS theory. And there do not exist chattering phenomina in this method because the obtained control inputs are continuous. Simultaneously the reaching phase is reduced by a suitable choice of design factor.

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