穿孔中密度纤维板的吸声性能

朱广勇; 彭立民; 刘毅; 傅峰; 王东; 宋博骐

doi:10.19455/j.mcgy.2015.02.001

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专辑

穿孔中密度纤维板的吸声性能
Sound Absorption of Perforated Medium Density Fiberboard
1. 中国林科院木材工业研究所
2. 国家林业局木材科学与技术重点实验室
3. 北京林业大学
2015年29卷第2期页码：5-8
DOI： 10.19455/j.mcgy.2015.02.001

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[1]朱广勇,彭立民,刘毅,傅峰,王东,宋博骐.穿孔中密度纤维板的吸声性能[J].木材工业,2015,29(02):5-8.

ZHU Guang-yong, PENG Li-min, LIU Yi, et al. Sound Absorption of Perforated Medium Density Fiberboard[J]. China Wood Industry, 2015,29(2):5-8.
[1]朱广勇,彭立民,刘毅,傅峰,王东,宋博骐.穿孔中密度纤维板的吸声性能[J].木材工业,2015,29(02):5-8. DOI： 10.19455/j.mcgy.2015.02.001.

ZHU Guang-yong, PENG Li-min, LIU Yi, et al. Sound Absorption of Perforated Medium Density Fiberboard[J]. China Wood Industry, 2015,29(2):5-8. DOI： 10.19455/j.mcgy.2015.02.001.

摘要

为了给穿孔中密度纤维板（MDF）的设计、加工及应用提供依据,采用阻抗管传递函数法,测试分析板厚、孔径、穿孔率和板后空腔深度对其吸声性能的影响。结果表明:穿孔MDF的吸声性能受板厚、孔径、穿孔率和板后空腔深度的共同影响,按优化工艺参数（板厚15mm,孔径3mm,穿孔率3.14%,4,.91%,空腔深度50mm）,穿孔MDF的吸声系数峰值可超过0.6。

Abstract

In order to provide a theoretical basis for designing and processing perforated medium density fiberboard（perforated MDF）for sound absorption,the effects of hole diameter,perforation rate and cavity depth behind the perforated MDF were evaluated by impedance-tube transfer function method.Under the following optimum conditions,such as 15 mm thickness,3.14%,4,.91% perforation rate and 50 mm cavity depth behind the perforated MDF,the maximum sound absorption coefficient for perforated MDF could reach 0.6.