Proceedings of the 2014 International Conference on Physics and its Applications

The Effect pf Non-Homogenous Perforation Pattern on Sound Absorption Bandwidth of Micro-Perforate Panel

Authors
Iwan Prasetiyo, Joko Sarwono, Indra Sihar
Corresponding Author
Iwan Prasetiyo
Available Online September 2014.
DOI
10.2991/icopia-14.2015.7How to use a DOI?
Keywords
Micro-perforated panel, non-homogenous perforation pattern, extending absorption bandwidth, excess sound absorber
Abstract

Absorption bandwidth of conventional Micro-Perforated Panel backed by air cavity is limited around 1 octave bands particularly for pore diameter close to 1 mm. Compared with porous material, the absorption bandwidth is relatively narrow. Hence, its applications may become limited. This research shows that multiple-peaks as result of the use of the non-homogenous perforation pattern are useful in extending the bsorption bandwidth. An analytical model is used to predict the absorption coefficient while experimental results are provided for validation

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2014 International Conference on Physics and its Applications
Series
Advances in Physics Research
Publication Date
September 2014
ISBN
978-94-62520-51-6
ISSN
2352-541X
DOI
10.2991/icopia-14.2015.7How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Iwan Prasetiyo
AU  - Joko Sarwono
AU  - Indra Sihar
PY  - 2014/09
DA  - 2014/09
TI  - The Effect pf Non-Homogenous Perforation Pattern on Sound Absorption Bandwidth of Micro-Perforate Panel
BT  - Proceedings of the 2014 International Conference on Physics and its Applications
PB  - Atlantis Press
SP  - 35
EP  - 40
SN  - 2352-541X
UR  - https://doi.org/10.2991/icopia-14.2015.7
DO  - 10.2991/icopia-14.2015.7
ID  - Prasetiyo2014/09
ER  -