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Vibration model of piano soundboards

Abstract : Modal observations of a piano soundboard are compared with results predicted by a model consisting of weakly coupled homogeneous sub-structures. The model is entirely determined by the coarse geometry of the soundboard (main plate, ribs, bridges, cut-off corners) and by the elastic parameters of the wood species. It can also be used to predict the point-mobility at the bridge (where strings are attached) or far from it. The agreement between observations and model predictions is excellent, both in the low- and high-frequency regimes (respectively below and above approximately 1 kHz). Applications include a comparison between the characteristics of different pianos as well as the influence of the wood properties on the point-mobility. Some consequences in terms of acoustical radiation will also be presented.
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Contributor : Xavier Boutillon <>
Submitted on : Thursday, April 25, 2013 - 11:33:13 AM
Last modification on : Thursday, December 19, 2019 - 1:20:24 AM
Document(s) archivé(s) le : Friday, July 26, 2013 - 4:02:52 AM


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  • HAL Id : hal-00817740, version 1


Xavier Boutillon, Kerem Ege. Vibration model of piano soundboards. Waves 2013, Jun 2013, Tunis, Tunisia. ⟨hal-00817740⟩



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