实际尺寸乐器音板用云杉属木材的声学振动特性  

Acoustic Vibration Property of Full-Size Spruce Wood Soundboard of Musical Instruments

作　　者：刘镇波[1] 沈隽[1] 刘一星[1] 刘明[1] 张华君 商继红 

机构地区：[1]东北林业大学生物质材料科学与技术教育部重点实验室,哈尔滨150040 [2]四川省川雅木业有限公司,成都610101

出　　处：《林业科学》2007年第8期100-105,共6页Scientia Silvae Sinicae

基　　金：国家自然科学基金项目(30371128);东北林业大学青年科研基金项目

摘　　要：以生产中使用的实际尺寸乐器音板用云杉属木材为研究对象,应用基于打击音的快速傅里叶变换分析的振动方法测定远东红皮云杉、长白鱼鳞云杉、西藏林芝云杉、美国西加云杉声学振动特性。采用综合坐标法与综合评分法对不同树种的长度L≤1400mm样本空间、L>1400mm样本空间及不同树种分别组成样本空间进行综合振动性能分析,得出此次试验样本的综合振动性能优劣顺序基本为:西藏林芝云杉>长白鱼鳞云杉>远东红皮云杉>美国西加云杉,而且这2种综合分析方法的结果具有显著相关性。结果表明:可应用本研究方法评价乐器音板用木材的综合振动性能。For former researches were focusing on the small-size wood samples,this paper studied on the acoustic vibration property of full-size spruce wood soundboard of musical instruments by natural frequency measurement system of fast Fourier transform（FFT）.Species included Picea glehnii,P.jezoensis,P.likiangensis and P.sitchensis.They were divided into three separate groups respectively.In the first group,the length of sample was less than or equal to 1 400 mm（L≤1 400？mm）.In the second,that was more than 1 400 mm（L〉1 400 mm）.The third one was single species.The vibration property of each sample group was evaluating by comprehensive coordinate method and comprehensive marking method.The classified quality of the species was ranked：P.likiangensis〉P.jezoensis〉 P.glehnii〉 P.sitchensis.Moreover,it showed a significant correlation between the results of these two statistics methods.It indicated that the method could be suitable for evaluating vibration properties for musical instrument soundboard in real production.

关 键 词：乐器 音板 木材 振动特性 

分 类 号：S781.38[农业科学—木材科学与技术]