Phase-shift analysis of locally resonant piezoelectric metasurface

Joshua M. Dupont; Ting Wang; J. Tang

doi:10.1117/12.2613398

19 April 2022 Phase-shift analysis of locally resonant piezoelectric metasurface

Joshua M. Dupont, Ting Wang, J. Tang

Proceedings Volume 12048, Health Monitoring of Structural and Biological Systems XVI; 120480I (2022) https://doi.org/10.1117/12.2613398
Event: SPIE Smart Structures + Nondestructive Evaluation, 2022, Long Beach, California, United States

Abstract

Piezoelectric transducers (PZTs) bonded to the surface of structural members introduces electromechanical coupling. By connecting tunable circuitry across the electrodes, this coupling can be used to realize local resonances and bandgaps which alter the dynamics of the vibrating structure. The objective of this paper is to present the results of an experimental method used to acquire the phase-shifts of elastic waves propagating through these locally resonant structures. In this study, inductive (LC) shunts are used to form the local resonances and implement elastic phase-shifts. We first analyze the dispersive properties of the piezoelectric unit cell analytically, utilizing the transformation matrix method. Then the experimental tuning procedures are described in detail, and phase-shift results are demonstrated.

Conference Presentation

Citation Download Citation

Joshua M. Dupont, Ting Wang, and J. Tang "Phase-shift analysis of locally resonant piezoelectric metasurface", Proc. SPIE 12048, Health Monitoring of Structural and Biological Systems XVI, 120480I (19 April 2022); https://doi.org/10.1117/12.2613398

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