克里特岛天琴座空气共振的有限元研究

IF 1.9 Q3 ENGINEERING, MECHANICAL
Vibration Pub Date : 2023-10-18 DOI:10.3390/vibration6040056
Nikolaos M. Papadakis, Nikolaos Nikolidakis, Georgios E. Stavroulakis
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引用次数: 0

摘要

克里特岛琴弦是希腊克里特岛上非常流行的一种弦乐器,也是其音乐传统的重要组成部分。对于弦乐器来说,空模共振在其声音中起着至关重要的作用,特别是在低频范围内。本文采用有限元法研究了一架克里特岛琴弦的空模共振问题。采用两种不同的有限元声学模型:首先,将克里特琴弦体处理为刚性的压力声学模型用于提供近似结果。其次,采用声-结构相互作用模型进行更精确的表征。此外,还进行了声学测量以确定空气模式共振频率。研究结果表明,声-结构相互作用模型与实际测量的共振频率有3.7%的差异。相比之下,与实际测量结果相比,压力声学解决方案大约高出13.8%。综上所述,本研究的发现支持了这样一种观点,即利用有限元声-结构相互作用模型可以更准确地预测乐器的振动声学行为,从而可以确定可用于控制乐器音调和音质的关键方面。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
FEM Investigation of the Air Resonance in a Cretan Lyra
Cretan lyra is a stringed instrument very popular on the island of Crete, Greece, and an important part of its musical tradition. For stringed musical instruments, the air mode resonance plays a vital part in their sound, especially in the low frequency range. For this study, the air mode resonance of a Cretan lyra is investigated with the use of finite element method (FEM). Two different FEM acoustic models were utilized: First, a pressure acoustics model with the Cretan lyra body treated as rigid was used to provide an approximate result. Secondly, an acoustic–structure interaction model was applied for a more accurate representation. In addition, acoustic measurements were performed to identify the air mode resonance frequency. The results of this study reveal that the acoustic–structure interaction model has a 3.7% difference regarding the actual measurements of the resonance frequency. In contrast, the pressure acoustics solution is approximately 13.8% too high compared with the actual measurements. Taken together, the findings of this study support the idea that utilizing the FEM acoustic–structure interaction models could possibly predict the vibroacoustic behavior of musical instruments more accurately, which in turn can enable the determination of key aspects that can be used to control the instrument’s tone and sound quality.
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来源期刊
CiteScore
3.20
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