Underactuated spacecraft can be detumbled using a variable structure controller. The algorithm converges to a sliding surface on which exponential decay of the angular velocities occurs. Lower maximum torque magnitudes results in slower convergence to the sliding surface. Once the spacecraft is at rest, a series of at most three rotations about the two active axes is used to reorient the spacecraft. Simple linear controllers can be used for the reorientation maneuvers.
ASJC Scopus subject areas
- Control and Systems Engineering
- Aerospace Engineering
- Space and Planetary Science
- Electrical and Electronic Engineering
- Applied Mathematics