This paper investigates the problem of controlling both translational and rotational motions for small-satellite formation using only aerodynamic forces. A new arrangement for actuators with six plates mounted on each spacecraft is suggested, such that aerodynamic forces and torques are produced simultaneously. In this work, the coupling between the position and attitude dynamics is unique, which mainly comes from the features of the aerodynamic models and the configuration of atmospheric-based actuators. Thus, a novel coupled orbit-attitude model is established. Considering the uncertainties in the atmospheric-density model at low-Earth orbit, a sliding-mode controller is developed based on the coupled model. An optimal process is proposed to determine the particular command, such that it can accurately drive each individual aerodynamic plate, while minimizing the variations of the commands. A series of simulations are performed to validate the effectiveness of the method, demonstrating that both position and attitude motion in a formation can be precisely controlled under atmospheric-density uncertainties.
Roto-Translational Spacecraft Formation Control Using Aerodynamic Forces
2017
Aufsatz (Zeitschrift)
Englisch
Roto-Translational Spacecraft Formation Control Using Aerodynamic Forces
Online Contents | 2017
|Spacecraft Coupled Roto-translational Time-Optimal Control for Rendezvous Missions
Springer Verlag | 2023
|Differential-drag-based roto-translational control for propellant-less spacecraft
Online Contents | 2015
|