Spacecraft Reduced-Attitude Control with a Variable Speed CMG

Gaetano Livornese (Autor)

Buch | Softcover

112 Seiten

2020
Edizioni Accademiche Italiane (Verlag)
978-620-2-08835-0 (ISBN)

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A Variable Speed Control Moment Gyro (VSCMG) is a novel actuator for spacecraft attitude control and represents the future of current momentum exchange devices. The proposed concept consists of a spacecraft with a single VSCMG for attitude control: this particular actuator design is proposed for the purpose of high manoeuvrability with a minimal actuator configuration. The system under investigation is under-actuated and the full-attitude cannot be controlled. Based on this consideration, a reduced-attitude representation is proposed and exploited to control the spacecraft for pointing the bore-sight. Here it is developed, for the first time, a completely new, non-singular and nonlinear control law able to re-point at discrete intervals or track a pointing reference continuously. The asymptotic stability of the system, in the different operative modes, is proved using Lyapunov stability theory. The controls are demonstrated with numerical simulations and then further validated with an application to a 12U CubeSat rendezvous utilizing a single throttable electric thruster.

Livornese, Gaetano Gaetano Livornese received his B.Eng. degree in Aerospace Engineering in 2017 and his M.Eng. degree in Space Engineering in 2020 from the Department of Aerospace Science and Technology, Politecnico di Milano, Milan. His research interests focus on the topics of orbital mechanics, space propulsion and guidance, navigation and control.

Erscheinungsdatum	24.07.2020
Sprache	englisch
Maße	152 x 229 mm
Gewicht	177 g
Themenwelt	Technik ► Fahrzeugbau / Schiffbau
Themenwelt	Technik ► Luft- / Raumfahrttechnik
Schlagworte	astrodynamics • Attitude • CMG • Control • CONTROLL • cubesat • guidance • Gyro • Lyapunov • Mechanics • Moment • Orbital • Rendezvous • Satellite • spacecraft • Speed • stability • thruster • Variable
ISBN-10	620-2-08835-4 / 6202088354
ISBN-13	978-620-2-08835-0 / 9786202088350
Zustand	Neuware