Flexible Spacecraft Three Axis Attitude Maneuver by Active Vibration Control

M. Sayanjali; J. Roshanian; A. Ghafari

Volume 2, Issue 1 , April 2009, , Pages 43-50

Abstract
  In this paper, equation of motion of three axis attitude dynamic of flexible spacecraft is derived using combination of finite element method and Euler equation. Flexible appendafes are modeled by beam elements. Goal of control is target attitude of spacecraft from initial state to desired attitude and ...  Read More

Flexible Spacecraft Attitude Control using Hybrid Control Scheme of H∞ and Sliding Mode Control

M. Sayanjali; J. Roshanian; A. Ghafari

Volume 1, Issue 2 , December 2008, , Pages 51-56

Abstract
  In this paper, based on the Lagrange method, attitude motion equations for a flexible spacecraft have been derived. Flexible appendages are modeled by Euler-Bernoulli beam. Hybrid control scheme ofand sliding mode are used for attitude regulation. Switching between these to algorithm is determined using ...  Read More