摘要
本文采用驻波管法测定杉木、马尾松、檫树等福建十种主要用材树种的法向吸声系数ａｑ，并进行单一因素影响的实验，以探讨入射声波频率、树种、厚度、含水率及纹理方向对ａｑ的影响，对实验规律进行定性分析．
In this paper,the normal sound-absorbing coefficients ap of ten main kinds of wood (such as Chinese fir,masson pine,sassafras tzumu,etc) in Fujian are examined by the method of stationary wave tube.Meanwhile the experiment about sole factor is made so as to go further into the effects on ap in the frequency of acoustic waves acted on the material surface, species, thicknesses, waret content and grain direction of wood,and to make qualitaive analysis about the expriment law.
出处
《福建林学院学报》
CSCD
1994年第4期306-310,共5页
Journal of Fujian College of Forestry
基金
福建省教育委员会科研基金
关键词
驻波管法
吸声系数
木材
吸声性能
standing-wave tube, acoustic absorptivity, acoustic impedance
tangen plane.
