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Research into Dendro-Acoustic Properties of Intro-duced Clones’ Wood as Material for Manufacturing Musical Instruments

机译：克隆克隆木材作为乐器制造材料的树突声学特性研究

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Background and Purpose: Studies of the physical-mechanical and acoustic properties of maple wood as a potential material for musical instruments manufacturing are extremely scarce. Related to this, dendro-acoustic studies of maples introduced by geographic origin are of great practical importance in order to create target plantations with predicted technical quality of wood. Materials and Methods: Maples from abroad introduced by geographic origin into the Botanical Garden of the Volga State University of Technology of the Republic of Mari El of Russia were used for the research. For comparison, the Norway maple of local origin (Acer platanoides L.) was selected. The studies were carried out by the frequency-amplitude method for determining Young's dynamic modulus and the acoustic constant of sound emission according to the criterion of academician N. Andreyev. Results: It was revealed that there are differences in the density and dendroacoustic indices of maple wood of local origin and maple trees introduced by geographic origin. Norway maple (Acer platanoides L.) turned out to possess the largest acoustic constant characterizing the resonant properties of wood. Introduced maple trees, plane-tree maple (Acer pseudoplatanus L.) and sugar maple (Acer saccharinum L.) are only slightly inferior in terms of this indicator. Conclusions: The dendroacoustic properties of maple wood are generally much lower than that of resonant spruce. Consequently, the acoustic role of maple wood in the back plates of the violin and other string instruments is completely different than that of the top plate made from the resonant material of coniferous species. To reveal this difference in more detail, comparative studies and dendroacoustic identification of maple wood in blanks and musical instruments with different levels of acoustic characteristics are necessary.
机译：背景与目的：枫木作为乐器制造的潜在材料的物理机械和声学特性的研究极为匮乏。与此相关的是，由地理起源引入的枫树的树状声学研究对于建立具有可预测的木材技术质量的目标人工林具有重要的现实意义。材料和方法：本研究使用了按地理起源从国外引入俄罗斯的马里埃尔共和国伏尔加国立技术大学植物园的枫树。为了比较，选择了本地产的挪威枫树（Acer platanoides L.）。根据院士安德烈耶夫（N. Andreyev）的准则，采用频率-振幅方法确定杨氏动态模量和声发射声常数。结果：结果表明，当地产的枫木和按地理来源引进的枫树的密度和树突声指数存在差异。挪威枫树（Acer platanoides L.）拥有最大的声学常数，代表了木材的共振特性。就此指标而言，引入的枫树，平面树枫树（Acer pseudoplatanus L.）和糖枫树（Acer saccharinum L.）略逊一筹。结论：枫木的树状声学特性通常远低于共振云杉。因此，枫木在小提琴和其他弦乐器的后板上的声学作用与由针叶树种的共振材料制成的顶板的声学作用完全不同。为了更详细地揭示这种差异，有必要对空白和具有不同声学特性的乐器中的枫木进行比较研究和树状声学识别。

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