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The present paper investigates the chaotic attitudedynamics and reorientation maneuver for completely vis-cous liquid-filled spacecraft with flexible appendage.All ofthe equations of motion are derived by using Lagrangianmechanics and then transformed into a form consisting of anunperturbed part plus perturbed terms so that the system'snonlinear characteristics can be exploited in phase space.Emphases are laid on the chaotic attitude dynamics producedfrom certain sets of physical parameter values of the space-craft when energy dissipation acts to derive the body fromminor to major axis spin.Numerical solutions of these equa-tions show that the attitude dynamics of liquid-filled flexiblespacecraft possesses characteristics common to random,non-periodic solutions and chaos,and it is demonstrated that thedesired reorientation maneuver is guaranteed by using a pairof thruster impulses.The control strategy for reorientationmaneuver is designed and the numerical simulation resultsare presented for both the uncontrolled and controlled spinstransition.
The present paper investigates the chaotic attitudedynamics and reorientation maneuver for completely vis-cous liquid-filled spacecraft with flexible appendage. All of the equations of motion are derived by using Lagrangian mechanisms and then transformed into a form consisting of an unperturbed part plus perturbed terms so that the the system 'snonlinear characteristics can be exploited in phase space. Emphases are laid on the chaotic attitude dynamics produced from certain sets of physical parameter values of the space-craft when energy dissipation acts to derive the body from minor to major axis spin. Numerical Solutions of these equa- tions show that the attitude dynamics of liquid-filled flexible spacecraft possesses characteristics common to random, non-periodic solutions and chaos, and it is demonstrated that thedesired reorientation maneuver is guaranteed by using a pairof thruster impulses. The control strategy for reorientationmaneuver is designed and the numerical simulation resultsare present ed for both the uncontrolled and controlled spinstransition.