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Sound Absorption Analysis on Micro-Perforated Panel Sound Absorber with Multiple Size Air Cavities
| Content Provider | Semantic Scholar |
|---|---|
| Author | Tan, Weihong Afendi Ahmad, Raja Daud, Ruslizam Shukry, Mustafa Cheng, E. M. |
| Copyright Year | 2015 |
| Abstract | Micro-perforated panel (MPP) sound absorber has been widely used for the noise reduction and is considered a promising alternative to the traditional porous materials. The acoustic performance of MPP sound absorber depends on 4 major design parameters, such as perforation diameter, air cavity depth, distance between perforations, and thickness of MPP. In this experimental study, analysis of sound absorption coefficient of the MPP sound absorber with multiple size air cavities was conducted. There are 4 groups multiple size of air cavity to be investigated. Results show the first and second major peaks of sound absorption coefficient curve are changing inversely when D2 is getting higher. The frequency band of the major peaks will shift as changing the D2. This phenomenon also had been observed by others research as the air cavity becomes deeper, the peak value is getting higher and it will shift to the lower frequency band. Index Term-Micro-perforated panel (MPP), sound absorption, sound absorber, and air cavity. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://ijens.org/Vol_15_I_05/142405-1505-6868-IJMME-IJENS.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
