Comparison of sound absorption performance of aluminium and cardboard micro-perforated panel

被引：0
|
作者：
Or, K. H. [1 ,2 ]
Putra, A. [1 ,2 ]
Dan, R. M. [1 ,2 ]
Lim, Z. Y. [1 ,2 ]
机构：
[1] Univ Tekn Malaysia Melaka, Fac Mech Engn, Durian Tunggal 76100, Melaka, Malaysia
[2] Univ Tekn Malaysia Melaka, Ctr Adv Res Energy, Durian Tunggal 76100, Melaka, Malaysia
来源：
PROCEEDINGS OF MECHANICAL ENGINEERING RESEARCH DAY 2017 (MERD) | 2017年
关键词：
Micro-perforated panel; cardboard; sound absorption coefficient;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Blurry noise or echo can cause disturbance to human being, especially in big halls, classrooms, auditoriums, cinemas and offices. This paper discusses the application of aluminium and cardboard micro-perforated panels (MPP) as acoustic absorber. Samples of MPP with different materials and perforation ratios are fabricated. The effect of type of material, introduction of air gap behind the sample and perforation ratio on the sound absorption performance are investigated through impedance tube testing to obtain the sound absorption coefficient. Both the aluminium and cardboard MPP are found to be effective acoustic absorber, especially at lower frequencies.
引用
收藏
页码：468 / 470
页数：3
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