Experimental investigation of sound absorption properties of perforated date palm fibers panel
作者： A K Elwaleed , N Nikabdullah , M J M Nor , M F M Tahir , R Zulkifli
DOI: 10.1088/1757-899X/46/1/012027
关键词: Materials science 、 Single layer 、 Air gap (plumbing) 、 Palm 、 Palm fiber 、 Composite material 、 Absorption (acoustics) 、 Noise reduction coefficient 、 Impedance tube
摘要: This paper presents the sound absorption properties of a natural waste date palm fiber perforated panel. A single layer fibers was tested in this study for its properties. The experimental measurements were carried out using impedance tube at acoustic lab, Faculty Engineering, Universiti Kebangsaan Malaysia. experiment conducted panel without air gap, with gap and plate facing. Three thicknesses 10 mm, 20 mm 30 used between sample rigid backing tube. results showed that when facing coefficient improved higher lower frequency ranges. increase coincided reduction medium absorption. However, could be by different densities or
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