接合方式の異なるエレキギターの振動エネルギー伝搬解析

抄録

Electric guitars are designed to generate sound of strings' vibration by amplify electrified signals with electromagnetic pick-ups. Resonance of body is not considered, so usually bodies are made of solid woods and raw sound radiation is very small. Advantage of electric guitars are that tone and volume are easily modified with various effectors. Thus, dominant factors of the sound is electric, but still mechanical structure of the guitar influence on the tones. In previous researches, there are some reports those mentioned about influence of woods' characteristics, but there are few reports in terms of vibration propagation analysis. On the other hand, authors aim on reduction of noise and vibration with devices be inspired of mechanism of instruments. In this study, relation between vibration characteristics and coupling methods of guitar is discussed with statistical energy analysis, so called SEA. First, influence of strings on vibration propagation characteristics is discussed with experimental SEA. Then, relation between vibration propagation and two coupling methods is discussed; number of bolts to fasten neck and body is changed. Finally correlation between sound tone, vibration propagation characteristics, and two coupling methods are reported. still In this study, focus on vibration energy propagation characteristics of structure. Therefore, the picking for which reproducibility has been secured was adopted.