Version 1
: Received: 21 July 2020 / Approved: 22 July 2020 / Online: 22 July 2020 (11:19:36 CEST)
Version 2
: Received: 26 July 2020 / Approved: 27 July 2020 / Online: 27 July 2020 (11:51:22 CEST)
Kumar, S.; Lee, H.P. Recent Advances in Acoustic Metamaterials for Simultaneous Sound Attenuation and Air Ventilation Performances. Crystals2020, 10, 686.
Kumar, S.; Lee, H.P. Recent Advances in Acoustic Metamaterials for Simultaneous Sound Attenuation and Air Ventilation Performances. Crystals 2020, 10, 686.
Kumar, S.; Lee, H.P. Recent Advances in Acoustic Metamaterials for Simultaneous Sound Attenuation and Air Ventilation Performances. Crystals2020, 10, 686.
Kumar, S.; Lee, H.P. Recent Advances in Acoustic Metamaterials for Simultaneous Sound Attenuation and Air Ventilation Performances. Crystals 2020, 10, 686.
Abstract
In the past two decades, acoustic metamaterials have garnered much attention owing to their unique functional characteristics, which is difficult to be found in naturally available materials. The acoustic metamaterials have demonstrated to exhibit excellent acoustical characteristics that paved a new pathway for researchers to develop effective solutions for a wide variety of multifunctional applications such as low-frequency sound attenuation, sound wave manipulation, energy harvesting, acoustic focusing, acoustic cloaking, biomedical acoustics, and topological acoustics. This review provides an update on the acoustic metamaterials' recent progress for simultaneous sound attenuation and air ventilation performances. Several variants of acoustic metamaterials, such as locally resonant structures, space-coiling, holey and labyrinthine metamaterials, and Fano resonant materials, are discussed briefly. Finally, the current challenges and future outlook in this emerging field is discussed as well.
Keywords
acoustic metamaterials; Sound attenuation; Air ventilation; Acoustic resonance
Subject
Physical Sciences, Acoustics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Commenter: Sanjay Kumar
Commenter's Conflict of Interests: Author