earticle

영어

Leading edge icing jeopardizes the aerodynamic performance of wing and the fly safety of airplane. Macro fiber composite(MFC) piezoelectric actuator possess favorable flexibility and large force output ability, which makes MFC quite suitable for the excitation of large curvature thin-walled structures such as wing leading edge. In this study, MFC is adopted for leading edge in flight deicing application. Key challenges of leading edge in flight deicing with MFC were investigated by finite element methodology and simulation approach, which include fundamental analysis of vibration deicing method, leading edge deicing excitation mode and MFC placement scheme determination. Base on thermal-elastic analogy modeling theory, asymmetric temperature load modeling method is proposed for the special actuation effect simulation of twist type MFC for deicing. Simulation results demonstrate the third natural vibration mode can be utilized for leading edge deicing with lowest energy consumption and twist type MFC has great potential for leading edge in flight deicing application.