Regional activation of a composite plate using selective actuation from multiple piezoelectric actuators
Part Of
Proceedings of SPIE - The International Society for Optical Engineering
Journal Volume
13433
Start Page
134330Z
Date Issued
2025-05-05
Author(s)
Editor(s)
Gutierrez Soto, Mariantonieta
Mailen, Russell W.
Pinto, Fulvio
Abstract
This paper reports on a method to create regional activation of a 2-D composite plate using multiple piezoelectric actuators. We derived an analytical solution to design the spatial locations of multiple piezoelectric actuators that attach to the surface of a 2-D composite plate. The composite plate consisted of a thin glass layer and a polymer layer, with dimensions of 90 mm × 73 mm. In our study, eleven PZT piezoelectric plates were bonded on together on top of it, and their spatial locations were determined by bending angle differences of the modal functions in the X and Y directions and the integral differences of the modal function in the X and Y directions. We calculated the contribution of each PZT piezoelectric patch to the selected bending modes. To induce vibration in the specific regions, we utilized the superposition of Φ41 and Φ43, Φ24 and Φ44, as well as Φ31 and Φ33, to achieve effective excitation of the bending modes. Thus, by employing multiple actuators, we selectively activated the composite plate corresponding to specific bending modes which enabled excitation in different regions and ensured the presence of antinodes in the desired areas. Finally, finite element analysis was used to verify that the displacement at the central point of a specific piezoelectric plate can reach more than 2 μm.
Event(s)
Multifunctional Materials and Structures 2025. 17 March 2025 - 20 March 2025, Vancouver.
Subjects
displacement
piezoelectric actuator
Publisher
SPIE
Type
conference paper