Adaptive piezoelectric metamaterials leveraging non-uniform local resonators

Ting Wang; Joshua Dupont; J. Tang

doi:10.1117/12.2658616

28 April 2023 Adaptive piezoelectric metamaterials leveraging non-uniform local resonators

Ting Wang, Joshua Dupont, J. Tang

Proceedings Volume 12483, Active and Passive Smart Structures and Integrated Systems XVII; 1248308 (2023) https://doi.org/10.1117/12.2658616
Event: SPIE Smart Structures + Nondestructive Evaluation, 2023, Long Beach, California, United States

Abstract

Metamaterials with locally resonant unit cells based on piezoelectric shunting have led to a new way of realizing elastic/acoustic wave manipulation with online tuning capability. One limitation of uniform locally resonant metamaterials with identical unit cells is their relatively narrow bandgap. Recently, the concept of graded metamaterials with non-uniform local resonators has emerged as a promising approach for improvement. In this research, we explore an adaptive piezoelectric metamaterial-based metamaterial design with spatially varying piezoelectric shunt circuits integrated with negative capacitance. Through systematic parametric analysis, a new design is identified to take advantage of the graded resonant shunt to enhance wave manipulation performance and enlarge the bandgap. Case investigations are presented to demonstrate the feasibility.

Conference Presentation

Citation Download Citation

Ting Wang, Joshua Dupont, and J. Tang "Adaptive piezoelectric metamaterials leveraging non-uniform local resonators", Proc. SPIE 12483, Active and Passive Smart Structures and Integrated Systems XVII, 1248308 (28 April 2023); https://doi.org/10.1117/12.2658616

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