고속 비행 환경에서의 압전 지능형 조종익 성능 개선

Abstract

In order to substitute a conventional fin operated by hydraulic actuator, structural analysis of three smart fins embedded with single crystal composite piezoelectric actuators was attempted in this thesis. Structural analysis on piezoelectric actuators employed on the present smart fins using ANSYS showed good correlation with the in-house MATLAB simulation based on classical laminated plate theory, and experimental result. Structural behaviors were analyzed regarding the resulting deflections for each smart fin under specific voltage input. In addition, computational fluid dynamics analysis was conducted on the structures so as to derive the final deflection under aerodynamic load of Mach number 0.5 flight. The present designs and analysis will be extend-ed to future applications such as the control surface component in the wing structures of the unmanned air vehicle and commercial aircraft.