The Effect pf Non-Homogenous Perforation Pattern on Sound Absorption Bandwidth of Micro-Perforate Panel
- 10.2991/icopia-14.2015.7How to use a DOI?
- Micro-perforated panel, non-homogenous perforation pattern, extending absorption bandwidth, excess sound absorber
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
- © 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 -