NUMERICAL MODEL APPLICATION TO PREDICT THE SOUND QUALITY OF AN INSTRUMENT.

It is well known that in an acoustic guitar, the hollow wooden body of the guitar, which forms the resonating chamber, plays an important role in the sound produced. In an electric guitar, the influence of the solid guitar body is not so crucial, yet some influence of the vibroacoustic material properties is expected but has not been scientifically confirmed so far. The aim of the research presented in this paper was to confirm the hypothesis and to investigate the influence of the material used for the solid body of an electric guitar on the final sound image. An experimental numerical model of the electric guitar was created to show how designers can be assisted with a tool that allows them to plan the characteristics of the sound to be produced at the design stage, when the material and shape for the body of the guitar have been determined. In order to develop a relevant numerical model of the electric guitar, we built a test bench to validate the numerical model. The results of the numerical simulation of the decay of the string vibrations as a function of the body material used agree well with the results of the experimental measurements, confirming the adequacy of the numerical model presented. [ABSTRACT FROM AUTHOR]