Proceedings of the 2014 International Conference on Mechatronics, Control and Electronic Engineering

A New Sound Absorption Improvement Strategy under Low Frequency for a Rigid Micro-perforated Panel Absorbers

Authors
Shumei Liu, Ping Li, Zibo Li, Likai Zhu
Corresponding Author
Shumei Liu
Available Online March 2014.
DOI
https://doi.org/10.2991/mce-14.2014.52How to use a DOI?
Keywords
micro-perforated panel; low frequency; finite flexible; membrane; sound absorption capability
Abstract
A micro-perforated panel absorbers (MPPs) is one of the most promising alternatives among the various types of the next-generation sound absorbers. However, the low frequency noise is difficult to tackle using the general MPPs. According to the high absorption performance of the combination of the membrane absorbers with MPPs and a finite flexible micro-perforated panel backed by an air cavity, the experimental study on the combination of a rigid and a finite flexible micro-perforated panel is carried out to reduce the noise in the low frequency. The results indicate that the resonance shifts to the low frequency. Meanwhile, the peak value becomes higher in the absorption curve of a conventional MPPs, which surface is attached to a finite flexible MPPs or a membrane, in comparison with the normal MPPs. These data demonstrate the great potential of the combination a rigid MPPs with a flexible MPPs in low frequency noise reduction.
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Proceedings
2014 International Conference on Mechatronics, Control and Electronic Engineering (MCE-14)
Part of series
Advances in Intelligent Systems Research
Publication Date
March 2014
ISBN
978-94-62520-31-8
ISSN
1951-6851
DOI
https://doi.org/10.2991/mce-14.2014.52How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Shumei Liu
AU  - Ping Li
AU  - Zibo Li
AU  - Likai Zhu
PY  - 2014/03
DA  - 2014/03
TI  - A New Sound Absorption Improvement Strategy under Low Frequency for a Rigid Micro-perforated Panel Absorbers
BT  - 2014 International Conference on Mechatronics, Control and Electronic Engineering (MCE-14)
PB  - Atlantis Press
SP  - 237
EP  - 240
SN  - 1951-6851
UR  - https://doi.org/10.2991/mce-14.2014.52
DO  - https://doi.org/10.2991/mce-14.2014.52
ID  - Liu2014/03
ER  -