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Communication Dans Un Congrès Année : 2013

Vibration model of piano soundboards

Résumé

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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Dates et versions

hal-00817740 , version 1 (25-04-2013)

Identifiants

  • HAL Id : hal-00817740 , version 1

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