云杉属木材生长轮宽度变异系数对声振动参数的影响  

Effects of Variance Coefficient of Growth Ring Width on Sound Vibration Parameters of Picea Wood

作　　者：沈隽[1] 刘一星[1] 刘明[1] 刘玉[1] 冈野健[2] 和田昌久[2] 

机构地区：[1]东北林业大学,哈尔滨150040 [2]东京大学

出　　处：《东北林业大学学报》2005年第5期27-29,共3页Journal of Northeast Forestry University

基　　金：国家自然科学基金资助项目(C02060102)。

摘　　要：选择7种我国主要的云杉属树种木材和1种作对比用的美国产西加云杉,进行了弯曲振动条件下各项声振动特性参数的检测和比较,初步分析了这些振动参数与木材构造中生长轮宽度变异系数之间的关系。结果表明:生长轮宽度比较均匀的木材具有比较好的声学振动特性。Eight species of Picea wood were selected as experimental materials, among which one species produced in America was used as control. The Young＇s module, loss tangent （tang） , E/G parameters were examined and compared under bending vibration situation. Relationship between test data and variance coefficient of growth ring width was analyzed. Result showed that wood with even growth ring width had good vibration character, which would help to explain the effect of wood variance coefficient of growth ring on the vibration property of wood used to make musical instruments.

关 键 词：云杉属木材 生长轮宽度 变异系数 声振动参数 振动参数 动特性参数 西加云杉 振动条件 木材构造 初步分析 

分 类 号：S781.38[农业科学—木材科学与技术] S792.153[农业科学—林学]