Vibration Suppression of Composite Plate Reinforced by CNTs On Elastic Foundation Using Active Control Method

The issue of reducing the oscillations of the solar panels of satellites, which have the highest level of contact with solar radiation and aerodynamic forces, is important. Using of composite structures reinforced with carbon nanotubes increases the strength of these plates. The solar panels are vibrated by aerodynamic forces and solar radiations, and vibrations can be reduced with the help of piezoelectric patches and a controller design independent of the satellite control system. piezoelectric patches are active controllable elements that are used in both sensors and operators, and the use of an accurate and efficient model of their physical, electrical, and elastoelectric properties is required. In this study, first the dynamic model of the plate with a new structure in the state space is obtained and the equations are linearized. Then an active linear quadratic regulator controller is designed. The simulation results show vibration suppression of the plate and robust performance of the proposed controller in presence of the model uncertainties and environmental disturbances.