摘要
利用福建１０种主要树种法向吸声系数（ａ＿ｐ）的测定结果，探讨了法向吸声系数与入射声波频率（ｆ）的关系。回归分析发现ａ＿ｐ与ｆ满足：ａ＿ｐ＝ｂ＿０＋ｂ＿１ｆ＋ｂ＿２ｆ￣２＋ｂ＿３ｆ￣３，并且发现此关系式与树种、切面无关，可以认为是一个普遍规律。
This study was carred out by use of the determination results of normal sound coefficients of wood(a_p)for 10 major tree species from Fujian.The regression analysis of a_p and audio frequencies(f)showed that the formula a_p=b_0+b_1f+b_2f￣2+b_3f￣3 is fit for actual conditions,which not only has not any relation to the tangent plane of wood but also can be regarded it as a general law.
出处
《浙江林学院学报》
CSCD
1995年第1期31-35,共5页
Journal of Zhejiang Forestry College
基金
福建省教委科研基金
关键词
木材
吸声特性
声频
回归分析
wood
sound absorption characteristics
normal sound absorption coefficient
audio frequencies
regression analysis
