Maximum Null Motion Algorithm for Single Gimbal Control Moment Gyroscopes

Dynamic Analysis and Testing of a Single Gimbal Control Momentum Gyroscope

“…In (2) it is observed that occurs F    -the angular acceleration of the inertial mass and G     -the acceleration of the gyroscopic axis. The torques due to these accelerations are not used for CMG control and they occur only at the beginning and end of the rotational movements of the inertial mass and the gyroscopic axis.…”

“…A spacecraft is a vehicle designed to operate, with or without a human crew, in a controlled orbit or trajectory, located outside the lower atmosphere of the Earth, so at altitudes above 65 km [1][2][3][4][5].…”

“…Main types of spacecrafts [1][2][3][4][5]: satellites are spacecraft intended for observing the Earth or other cosmic objects or phenomens (stars, planets, comets, asteroids, etc. ), of telecommunications, military, navigation, weather, recognition, etc .…”

“…Attitude Control Systems (ACS) have the role of stabilizing spacecrafts and directing them in the desired direction, during their mission and against the disruptive moments to which these vehicles are subjected [1][2][3][4][5].…”

“…1. Because spacecraft is more of a rotational motion than a translational one, the position of the vehicle is described and can be controlled by means of three angles of rotation around the three main axes passing through the center mass of the vehicle, called [1][2][3][4][5]:…”