A non-smooth simulation of the dynamics of the grand piano action - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2013

A non-smooth simulation of the dynamics of the grand piano action

Anders Thorin
Xavier Boutillon
  • Fonction : Auteur
  • PersonId : 842355
Xavier Merlhiot
José Lozada
  • Fonction : Auteur
  • PersonId : 842356

Résumé

Two models of the grand piano key mechanism are presented: a single-degree-of-freedom model and a model based on 6 rotating bodies, 13 contact zones with nonlinear springs, 3 of them (hammer-jack, jack-escapement button, hammer-check) being also subject to Coulomb friction. The latter model introduces discontinuities on the velocities. The problems raised by the usual regular-dynamics formulation are discussed and a non-smooth dynamics approach is proposed. Based on the comparison between experimental and simulation results, it is discussed whether the simulation should be driven by the force exerted by the pianist or by the displacement of the key.
Fichier principal
Vignette du fichier
Waves_thorin_HAL.pdf (301.44 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00817781 , version 1 (25-04-2013)

Identifiants

  • HAL Id : hal-00817781 , version 1

Citer

Anders Thorin, Xavier Boutillon, Xavier Merlhiot, José Lozada. A non-smooth simulation of the dynamics of the grand piano action. Waves 2013, Jun 2013, Tunis, Tunisia. ⟨hal-00817781⟩
578 Consultations
117 Téléchargements

Partager

Gmail Facebook X LinkedIn More