Large Scale Parallel Vibration Analysis of Stradivarius Using Domain Decomposition Method
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Modern analysis of violins has been carried out and many experimental studies based on modal and acoustic analysis have been reported [1-3]. Since a violin consists of many parts, including not only large parts such as the front and side plates, but also smaller parts such as pegs and end pins, experimental and numerical analysis is extremely difficult due to its complex shape and structure and the individual differences in the wood used in the violin. The high cost of making violins makes it difficult to produce a sufficient number of violins for parametric studies. In addition, as violins are cultural artefacts, it is also difficult to obtain data for experiments. Therefore, numerical simulation has been used to study violins. In this study, the Finite Element Method (FEM) of the ADVENTURE system, a large-scale parallel simulation software, was used to analyse the vibration and acoustics of the world-famous Stradivarius. Since the violin is mainly made of woods such as maple, spruce and ebony, which have orthotropic properties, it was analysed with physical properties in three orthogonal directions, the longitudinal grain direction, the radial annual ring direction and the direction tangential to the annual ring. The future aim of the study is to lead to the elucidation of the principles of the acoustics produced by this famous instrument.
