Vibrating Mass Control Moment Gyroscope Dynamic Model Validation

摘要

A novel satellite attitude actuator based on vibrating masses had been previously proposed. In this work its dynamics are introduced and actuation schemes for its various stages are investigated. The resulting actuator was simulated in MATLAB/SIMULINK environment using the previously obtained dynamical model. To validate the simulation code, a simulation was also built in MSC ADAMS environment. Simulation results are also given to demonstrate the effects of various parameters on the performance of the actuator such as phase difference between the rotor and gimbal motions, and excitation frequency. The use of a pair of actuators to remove the unwanted oscillations in the axes other than the useful axis is also demonstrated. Finally, resonance tuning of the gimbal and rotor axis is addressed.