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Wednesday | Salon 13 | 02:50 PM–03:10 PM
#12229, Investigating the Modal Behavior of a Violin Top and a Back Plate
Regarding structural dynamic behavior, the violin is a very versatile entity to study, since it combines many different effects in one single structure. Investigating this instrument means dealing with the uncertainty in natural materials, geometric non-linearities, many interfaces and sound radiation. Hence, this multifaceted structure serves as research subject for present work. The study starts with modal analyses of the raw spruce and maple woods, with the intention to show that an a priori material parameter identification is possible. The identified values serve as input for the orthotropic violin plates in the asso-ciated finite element model. Using 2D laser scanning vibrometry, the modal parameters are obtained for each plate. The components are supported on soft foams and on cotton wool in order to show the significant deviations in the measurement results with varying foam compliance.
Özge Akar Universität Erlangen-Nürnberg
Kai Willner Universität Erlangen-Nürnberg
Investigating the Modal Behavior of a Violin Top and a Back Plate