桉木多层穿孔吸声板的制备及吸声性能评价

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英文篇名：Preparation of Perforated Acoustic Panels Made of Eucalyptus Plywood and Evaluation of Acoustic Absorption Properties of the Panels 作者：王军锋 ; 雷福娟 ; 黄腾华 英文作者：WANG Jun-feng;LEI Fu-juan;HUANG Teng-hua;Guangxi Zhuang Autonomous Region Forestry Research Institute; 关键词：桉木胶合板 ; 穿孔吸声板 ; 吸声系数 ; 吸声频率 英文关键词：Eucalyptus plywood;;perforated acoustic panel;;sound absorption coefficient;;acoustic frequency 中文刊名：MCGY 英文刊名：China Wood Industry 机构：广西壮族自治区林业科学研究院; 出版日期：2018-07-08 出版单位：木材工业 年：2018 期：v.32;No.174 基金：广西林业科技项目“桉木多层复合穿孔吸声板的研究”(桂林科研[2015]第14号);; 广西科技重大专项“饰面胶合板与细木工板制造关键技术研究及示范”(桂科AA17204087-13) 语种：中文; 页：MCGY201804002 页数：4 CN：04 ISSN：11-2726/S 分类号：6-9

摘要

采用桉木多层胶合板制备穿孔吸声板,探讨孔径、穿孔率、胶合板厚度等因素对其吸声性能的影响。结果表明:穿孔率和胶合板厚度对试板吸声性能的影响极显著,孔径无显著性影响;制备穿孔吸声板较优工艺为:孔径3 mm、穿孔率14%、板厚18 mm;在声波频率100~6 300 Hz范围内,穿孔吸声板的平均吸声系数为0.5,在1 700 Hz附近,穿孔吸声板吸声性能最好。
        Effects of aperture diameter, perforative ratio and thickness of perforated panels made of eucalyptus plywood on acoustic absorption properties of the panel were studied. The results showed that thickness and perforative ratio had significant impact on acoustic absorption properties of the panels. The perforated acoustic panels with 18 mm panel thickness, 3 mm aperture diameter and 14% perforative ratio showed good acoustic absorption properties. Average sound absorption coefficient of the panels could reach 0.5 in the range of 100~6 300 Hz of acoustic frequency but the panel had the best acoustic absorption performance at 1 700 Hz acoustic frequency.

引文

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