Modal analysis of violin bodies with back plates made of different wood species
Modal analysis of violin bodies with back plates made of different wood species
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不同树种背板小提琴琴体的模态分析
DOI：
10.15376/biores.15.4.7687-7713
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发表时间：
2020
期刊：
影响因子：
1.5
通讯作者：
M. Câmpean
中科院分区：
文献类型：
--
作者：
V. G. Gliga;M. Stanciu;S. Năstac;M. Câmpean
这项研究调查了一些欧洲木材品种用于制造小提琴背板的潜力，以替代非常罕见的卷曲枫木。为此目的，使用冲击锤法进行了实验模态分析。模态分析是在顶板和背板上进行的，作为单独的结构，然后集成到小提琴主体中。模态分析设想确定本征频率（自然频率）、频谱分量的数量和品质因数，作为乐器声学性能的重要指标。一个多标准分析的基础上获得的这些指标的值允许有趣的调查结果有关选定的木材品种（角木，杨柳，灰，鸟眼枫木，胡桃木和白杨）的声学特性。和曲枫一样，它们都有特殊的美学，但只有角木、杨柳和白蜡木被证明也有声学潜力。
This research investigated the potential of some European wood species for use in the manufacturing of the back plates of violins as an alternative to the quite rare curly maple wood. An experimental modal analysis was employed for this purpose using the impact hammer method. The modal analysis was performed both on the top and back plates, as individual structures, and then after being integrated into the violin body. The modal analysis envisaged the determination of the eigenfrequencies (natural frequencies), the number of spectral components, and the quality factor, as important indicators of the acoustic performances of a musical instrument. A multi-criteria analysis based on the values obtained for these indicators allowed interesting findings concerning the acoustic properties of the selected wood species (hornbeam, willow, ash, bird-eye maple, walnut, and poplar). Same as curly maple, they all have special aesthetics, but only hornbeam, willow, and ash wood proved to have acoustic potential as well.