Acoustic metamaterials capable of both sound insulation and energy harvesting

Junfei Li; Xiaoming Zhou; Guoliang Huang; Gengkai Hu

doi:10.1088/0964-1726/25/4/045013

Acoustic metamaterials capable of both sound insulation and energy harvesting

Junfei Li, Xiaoming Zhou, Guoliang Huang, Gengkai Hu

School of Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

95 Citations (Scopus)

Abstract

Membrane-type acoustic metamaterials are well known for low-frequency sound insulation. In this work, by introducing a flexible piezoelectric patch, we propose sound-insulation metamaterials with the ability of energy harvesting from sound waves. The dual functionality of the metamaterial device has been verified by experimental results, which show an over 20 dB sound transmission loss and a maximum energy conversion efficiency up to 15.3% simultaneously. This novel property makes the metamaterial device more suitable for noise control applications.

Original language	English
Article number	045013
Journal	Smart Materials and Structures
Volume	25
Issue number	4
DOIs	https://doi.org/10.1088/0964-1726/25/4/045013
Publication status	Published - 14 Mar 2016

Keywords

PVDF membrane
acoustic metamaterials
energy harvesting

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10.1088/0964-1726/25/4/045013

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Li, J., Zhou, X., Huang, G., & Hu, G. (2016). Acoustic metamaterials capable of both sound insulation and energy harvesting. Smart Materials and Structures, 25(4), Article 045013. https://doi.org/10.1088/0964-1726/25/4/045013

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Acoustic metamaterials capable of both sound insulation and energy harvesting

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Keywords

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