Modelling the dynamics of the piano action: is apparent success real? - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Acta Acustica united with Acustica Année : 2014

Modelling the dynamics of the piano action: is apparent success real?

Résumé

The kinematics and the dynamics of the piano action mechanism have been much studied in the last 50 years and fairly sophisticated models have been proposed in the last decade. Surprisingly, simple as well as sophisticated models seem to yield very valuable simulations when compared to measurements. We propose here a very simple model, with only 1-degree of freedom, and compare its outcome with force and motion measurements obtained by playing a real piano mechanism. The model, purposely chosen as obviously too simple to be predictive of the dynamics of the grand piano action, appears either as very good or as very bad, depending on which physical quantities are used as the input and output. We discuss the sensitivity of the simulation results to the initial conditions and to noise and the sensitivity of the experimental/simulation comparisons to the chosen dynamical model. It is shown that force-driven simulations with position comparisons, as they are proposed in the literature, do not validate the dynamical models of the piano action. It is suggested that these models be validated with position-driven simulations and force comparisons.
Fichier principal
Vignette du fichier
Thorin2014_Hal.pdf (880.73 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-01193708 , version 1 (04-09-2015)

Licence

Paternité - Pas d'utilisation commerciale - Partage selon les Conditions Initiales

Identifiants

Citer

Anders Thorin, Xavier Boutillon, José Lozada. Modelling the dynamics of the piano action: is apparent success real?. Acta Acustica united with Acustica, 2014, pp.10. ⟨10.3813/AAA.918795⟩. ⟨hal-01193708⟩
1423 Consultations
1868 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More