摘要
以胶合板、中密度纤维板和刨花板为试验材料,用驻波管法分别测量3种人造板的吸声系数。结果表明:总体上,人造板材料吸声系数随频率增加而增大;增加材料厚度可以略提高低频的吸声系数;厚度相近的胶合板吸声性能要好于其他2种材料;人造板材料的平均吸声系数不到20%,吸声效果并不理想。
The sound absorption coefficients of 3 wood -based boards including plywood, particleboard and medium density fiberboard were tested as materials with standing wave tube. And The results showed that the sound absorption coefficients of wood - based boards increased with the increasing frequency. The sound absorption coefficients under low frequency increased with the adding thickness of materials. The sound absorption of plywood better than another 2 materials under closed thickness. The average sound absorption coefficients of wood - based boards didn＇t achieve 20%. The sound absorption effect was not ideal
出处
《林业科技》
北大核心
2008年第2期51-53,共3页
Forestry Science & Technology
关键词
驻波管
吸声系数
人造板
Standing wave tube
Sound absorption coefficient
Wood -based board
