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

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 ea...

Full description

Bibliographic Details
Main Authors: Xin Li, Qianqian Wu, Ludi Kang, Bilong Liu
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Materials
Subjects:
perforated panel
absorber array
low frequency absorption
Online Access:https://www.mdpi.com/1996-1944/12/13/2099
id doaj-46640ee6c0634358813aa8dbd9f6808b
record_format Article
spelling doaj-46640ee6c0634358813aa8dbd9f6808b2020-11-24T21:27:38ZengMDPI AGMaterials1996-19442019-06-011213209910.3390/ma12132099ma12132099Design of Multiple Parallel-Arranged Perforated Panel Absorbers for Low Frequency Sound AbsorptionXin Li0Qianqian Wu1Ludi Kang2Bilong Liu3School of Mechanical & Automobile Engineering, Qingdao University of Technology, No. 777 Jialingjiang Road, Qingdao 266520, ChinaSchool of Mechanical & Automobile Engineering, Qingdao University of Technology, No. 777 Jialingjiang Road, Qingdao 266520, ChinaSchool of Mechanical & Automobile Engineering, Qingdao University of Technology, No. 777 Jialingjiang Road, Qingdao 266520, ChinaSchool of Mechanical & Automobile Engineering, Qingdao University of Technology, No. 777 Jialingjiang Road, Qingdao 266520, ChinaA 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.https://www.mdpi.com/1996-1944/12/13/2099perforated panelabsorber arraylow frequency absorption
collection DOAJ
language English
format Article
sources DOAJ
author Xin Li
Qianqian Wu
Ludi Kang
Bilong Liu
spellingShingle Xin Li
Qianqian Wu
Ludi Kang
Bilong Liu
Design of Multiple Parallel-Arranged Perforated Panel Absorbers for Low Frequency Sound Absorption
Materials
perforated panel
absorber array
low frequency absorption
author_facet Xin Li
Qianqian Wu
Ludi Kang
Bilong Liu
author_sort Xin Li
title 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_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_sort design of multiple parallel-arranged perforated panel absorbers for low frequency sound absorption
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2019-06-01
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.
topic perforated panel
absorber array
low frequency absorption
url https://www.mdpi.com/1996-1944/12/13/2099
work_keys_str_mv AT xinli designofmultipleparallelarrangedperforatedpanelabsorbersforlowfrequencysoundabsorption
AT qianqianwu designofmultipleparallelarrangedperforatedpanelabsorbersforlowfrequencysoundabsorption
AT ludikang designofmultipleparallelarrangedperforatedpanelabsorbersforlowfrequencysoundabsorption
AT bilongliu designofmultipleparallelarrangedperforatedpanelabsorbersforlowfrequencysoundabsorption
_version_ 1725974352293265408

Similar Items