DYNAMICS AND CONTROL OF SPACECRAFT WITH RETARGETING FLEXIBLE ANTENNAS

This investigation is concerned with the dynamics and control of a spacecraft comprising a rigid platform and a given number Of retargeting flexible antennas. The mission consists of maneuvering the antennas so as to coincide with preselected lines of sight while stabilizing the platform in an inertial space and suppressing the elastic vibration of the antennas. The paper contains the derivation of the equations of motion by a Lagrangian approach using quasicoordinates, as well as a procedure for designing the feedback controls. A numerical example involving a spacecraft consisting of a rigid platform and a flexible antenna is presented. © 1990 American Institute of Aeronautics and Astronautics, Inc., All rights reserved.