Design of Multiple Parallel-Arranged Perforated Panel Absorbers for Low Frequency Sound Absorption

A particular structure that consists of four parallel-arranged perforated panel absorbers (PPAs) is proposed for the low frequency sound absorption within a constraint space. The apertures of the perforated panels are set to ≥1.5 mm, and the number of orifices is much less and therefore easier to be...

Descripción completa

Detalles Bibliográficos
Autores principales: Li, Xin, Wu, Qianqian, Kang, Ludi, Liu, Bilong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6651148/
https://www.ncbi.nlm.nih.gov/pubmed/31261868
http://dx.doi.org/10.3390/ma12132099
_version_ 1783438278231326720
author Li, Xin
Wu, Qianqian
Kang, Ludi
Liu, Bilong
author_facet Li, Xin
Wu, Qianqian
Kang, Ludi
Liu, Bilong
author_sort Li, Xin
collection PubMed
description A particular structure that consists of four parallel-arranged perforated panel absorbers (PPAs) is proposed for the low frequency sound absorption within a constraint space. The apertures of the perforated panels are set to ≥1.5 mm, and the number of orifices is much less and therefore easier to be produced in comparison with that of the micro perforated panel (MPP). A simple approximation model by using acoustic-electrical analogy is described to calculate the sound absorption coefficient of such device subject to normal wave incidence. Theoretical and experimental results demonstrate that the device can provide more than one octave sound absorption bandwidth at low frequencies.
format Online
Article
Text
id pubmed-6651148
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-66511482019-08-07 Design of Multiple Parallel-Arranged Perforated Panel Absorbers for Low Frequency Sound Absorption Li, Xin Wu, Qianqian Kang, Ludi Liu, Bilong Materials (Basel) Article A particular structure that consists of four parallel-arranged perforated panel absorbers (PPAs) is proposed for the low frequency sound absorption within a constraint space. The apertures of the perforated panels are set to ≥1.5 mm, and the number of orifices is much less and therefore easier to be produced in comparison with that of the micro perforated panel (MPP). A simple approximation model by using acoustic-electrical analogy is described to calculate the sound absorption coefficient of such device subject to normal wave incidence. Theoretical and experimental results demonstrate that the device can provide more than one octave sound absorption bandwidth at low frequencies. MDPI 2019-06-29 /pmc/articles/PMC6651148/ /pubmed/31261868 http://dx.doi.org/10.3390/ma12132099 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Xin
Wu, Qianqian
Kang, Ludi
Liu, Bilong
Design of Multiple Parallel-Arranged Perforated Panel Absorbers for Low Frequency Sound Absorption
title Design of Multiple Parallel-Arranged Perforated Panel Absorbers for Low Frequency Sound Absorption
title_full Design of Multiple Parallel-Arranged Perforated Panel Absorbers for Low Frequency Sound Absorption
title_fullStr Design of Multiple Parallel-Arranged Perforated Panel Absorbers for Low Frequency Sound Absorption
title_full_unstemmed Design of Multiple Parallel-Arranged Perforated Panel Absorbers for Low Frequency Sound Absorption
title_short Design of Multiple Parallel-Arranged Perforated Panel Absorbers for Low Frequency Sound Absorption
title_sort design of multiple parallel-arranged perforated panel absorbers for low frequency sound absorption
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6651148/
https://www.ncbi.nlm.nih.gov/pubmed/31261868
http://dx.doi.org/10.3390/ma12132099
work_keys_str_mv AT lixin designofmultipleparallelarrangedperforatedpanelabsorbersforlowfrequencysoundabsorption
AT wuqianqian designofmultipleparallelarrangedperforatedpanelabsorbersforlowfrequencysoundabsorption
AT kangludi designofmultipleparallelarrangedperforatedpanelabsorbersforlowfrequencysoundabsorption
AT liubilong designofmultipleparallelarrangedperforatedpanelabsorbersforlowfrequencysoundabsorption

Ejemplares similares