Basic Study About Large-Scale Acoustic Analysis of Violin Based on Domain Decomposition
Shota TANI, Akihiro Kudo, Amane Takei, Masao Yokoyama, Genki YAGAWA · Keisan Rikigaku Koenkai koen ronbunshu/Keisan Rikigaku Kouenkai kouen rombunshuu · 2022
Recent advances in numerical computation technology have popularized wave acoustic analysis, which is used in the design of musical instruments. The goal of this study is to shorten the production time and reduce the cost of musical instruments by predicting the sound behavior of a violin as the object of analysis. The analysis model was created based on CT scan data of a Stradivarius violin, and the open software ADVENTURE_Sound was used as the analysis tool. ADVENTURE_Sound is characterized by its ability to perform detailed analysis with tens to hundreds of millions of degrees-of-freedom meshes and its high parallel efficiency even in massively parallel computing environments consisting of tens of thousands of processors. In conclusion, we confirmed that a steady-state analysis of a high-definition violin model is successfully performed with more than tens of millions of elements.