The control of chaotic attitude motion of a perturbed spacecraft

Several new chaotic attractors were found from the nonlinear dynamical system of attitude motion of a perturbed spacecraft. Investigation demonstrated that many well-known chaotic nonlinear systems like Lorenz system are the especial illustration of this system and periodically varying torque and long-term disturbing torque could force the non-chaotic nonlinear system into chaotic motion. Two conclusions about the figure, structure and the size of this class of chaotic attractor were educed. A more practicable and efficient nonlinear relay control techniques were utilized to suppress the chaos and control system to the given fixed point.