Abstract
In this work, it has been shown the effect of a piezoelectric material on postponing the flutter phenomenon and even removing it completely on a regular wing. First, the system response of a smart wing with only plunge DOF and pitch DOF are presented. Using an efficient piezopatch can effectively decay the oscillations of the smart wing in a very short time. In addition, implementing one piezopatch in the plunge DOF of a regular wing with three DOF can postpone the flutter speed by 81.41%, which is a considerable increase in the flutter speed. We then present the effect of adding one 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 the flutter phenomenon from the wing, which represents a great achievement in the dynamic aeroelectic behavior of a wing.
Highlights
Aeroelastic analysis of a modern wing with high flexibility is crucial
We show that the flutter speed can be further increased by having two piezopatches
degrees of freedom (DOF) can postpone the flutter speed by 81.41%, which is a considerable increase in the flutter speed
Summary
Aeroelastic analysis of a modern wing with high flexibility is crucial. The ability to control the aeroelastic instability due to high flexibility is very important to achieve the desired aerodynamic performance in a wing design [1,2]. Adding a shunt circuit to a piezoelectric material can create a piezopatch to effectively modify the wing’s aeroelastic behaviour. The use of shunted piezopatch permits damping augmentation in the wing structure without causing any instability They need little to no power and are simple to apply. The effect of piezoelectric material on increasing the flutter speed is investigated in detail by considering a simple aeroelastic system.
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