Low-Frequency, Open, Sound-Insulation Barrier by Two Oppositely Oriented Helmholtz Resonators

In this work, a low-frequency, open, sound-insulation barrier, composed of a single layer of periodic subwavelength units (with a thickness of λ/28), is demonstrated both numerically and experimentally. Each unit was constructed using two identical, oppositely oriented Helmholtz resonators, which we...

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Bibliographic Details

Published in:	Micromachines
Main Authors:	Yi-Jun Guan, Yong Ge, Hong-Xiang Sun, Shou-Qi Yuan, Xiao-Jun Liu
Format:	Article
Language:	English
Published:	MDPI AG 2021-12-01
Subjects:	sound insulation low-frequency sound open barrier ventilation Helmholtz resonators
Online Access:	https://www.mdpi.com/2072-666X/12/12/1544