A novel attitude control technique for miniature spacecraft
A novel attitude control technique for miniature spacecraft
- New search for: Li, J.
- New search for: Koh, S.K.
- New search for: Ananthasuresh, G.K.
- New search for: Ayyaswamy, P.S.
- New search for: Ananthakrishnan, S.
- New search for: Li, J.
- New search for: Koh, S.K.
- New search for: Ananthasuresh, G.K.
- New search for: Ayyaswamy, P.S.
- New search for: Ananthakrishnan, S.
Ae novel attitude control technique for miniature spacecraft using MEMS actuators is presented in this paper. In this technique, a permanent net change in the orientation of the spacecraft is achieved even though the individual microactuators are all brought to their unactivated state at the end of an attitude-changing maneuver. This is ideally suited for untethered systems such as spacecraft because continuous supply of power is not necessary to retain the new orientation. The technique exploits the non-commutative property of finite rotations of a rigid-body. That is, a sequence of fully-reversed rotations about three orthogonal axes results in net change in the orientation of the spacecraft The limited torque capacity of microactuators is overcome by using an array of actuators and accomplishing the attitude-change maneuver in several small steps. An ensuing problem of planning such a maneuver is stated. The practical feasibility of the technique is demonstrated using electro-thermal microactuators.
Document information
A novel attitude control technique for miniature spacecraft
Eine neue Technik zur Lageregelung bei Miniatur-Raumfahrzeugen
2001
4 Seiten, 6 Bilder, 1 Tabelle, 5 Quellen
Conference paper
English
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