穿孔中密度纤维板的吸声性能  

Sound Absorption of Perforated Medium Density Fiberboard

作　　者：朱广勇[1,2] 彭立民[1,2] 刘毅[3] 傅峰[1,2] 王东[1,2] 宋博骐[1,2] 

机构地区：[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,北京100091 [3]北京林业大学,北京100083

出　　处：《木材工业》2015年第2期5-8,共4页China Wood Industry

基　　金："十二五"国家科技支撑计划课题"家装材与室外材增值制造技术研究与示范"(2012BAD24B02)

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。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.

关 键 词：穿孔中密度纤维板 吸声系数 孔径 穿孔率 空腔深度 

分 类 号：TS653.6[轻工技术与工程]