Design and Active Vibration Control of UAV EO/IR Sensor Mount Using Rubber Element and Piezoelectric Actuator

고무와 압전작동기를 이용한 무인항공기 EO/IR 센서 마운트의 설계 및 능동 진동 제어

This paper presents an inertia type of piezostack based active mount for unmanned aero vehicle (UAV) camera system. After identifying the stiffness and damping properties of the rubber element and piezostack a mechanical model of the active mount system is established. The governing equation of mount is them derived and expressed in a state space farm. Subsequently, a sliding mode controller which is robust to uncertain parameters is designed in order to reduce the vibration imposed according to the military specification associated with UAV camera mount system operation. Control performances such as acceleration and transmitted force are evaluated through both computer simulation and experimental implementation.