Smart Wing Flutter Suppression

摘要

In this work, it has been shown the effect of a piezoelectric material on postponing theflutter phenomenon and even removing it completely on a regular wing. First, the system response ofa smart wing with only plunge DOF and pitch DOF are presented. Using an efficient piezopatch caneffectively decay the oscillations of the smart wing in a very short time. In addition, implementingone piezopatch in the plunge DOF of a regular wing with three DOF can postpone the flutter speedby 81.41, which is a considerable increase in the flutter speed. We then present the effect of addingone more piezopatch to a smart wing in the pitch DOF to further postpone the flutter phenomenon.The flutter speed in a smart wing can be postponed by 115.96, which is a very considerable value.Finally, adding one more piezopatch on a smart wing in the control DOF can completely remove theflutter phenomenon from the wing, which represents a great achievement in the dynamic aeroelecticbehavior of a wing.