The Experimental Research on the Sound Absorption Coefficient of Several Different Mytilaria Laosensis Veneering Boards

摘要：

The composite acoustics board with pore-tank structure and variable cross section structure are made of Medium Density Fiberboard(MDF) as base material, Mytilaria laosensis sheet as veneer board, and sound absorption mat as the substructure material with the micro-perforation interlayer structure. The test was carried out to compare the absorption coefficient of Mytilaria laosensis sheet and nine samples by standing wave tube The test result shows that Mytilaria laosensis sheet has a low soundabsorbing performance itself, and its soundabsorption coefficient in all frequency ranges less than 0.3 and cannot be used as the sound-absorption board alone; The variable cross section structure sound-absorption board has a better performance than the pore-tank structure; When using the microperforation layer structure, the sound absorption board performs better and the sound absorption coefficient improves markedly in middle and low frequency scope.

关键词： Mytilaria laosensis fibreboard micro-perforation structure sound absorption coefficient

作者: Su Chu-wang Yuan Quan-ping Huang Jing-da Yang Kang

作者单位: Forestry College of Guangxi University, Nanning,530003, China

会议类型: 国际会议

会议名称: Fourth International Conference on Advanced Design and Manufacturing(第四届先进设计与制造国际会议)

会议地点: 昆明

会议语种:英文

页码: 95-98

在线出版日期: 2011-09-21（万方平台首次上网日期，不代表论文的发表时间）