Sound simulation-based design optimization of brass wind instruments - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of the Acoustical Society of America Année : 2019

Sound simulation-based design optimization of brass wind instruments

(1) , (2) , (3) , (4) , (3)
1
2
3
4

Résumé

A method for optimizing the inner shape of brass instruments using sound simulations is presented. This study considers different objective functions and constraints (representative of both the intonation and the spectrum of the instrument) for a relatively large number of design variables. A complete physics-based model, taking into account the instrument and the musician's embouchure, is used to simulate steady regimes of sounds by means of the harmonic balance technique, the instrument being represented by its input impedance. The design optimization variables are related to the geometrical dimensions of the resonator. The embouchure's parameters are varied during the optimization procedure to obtain an average behavior of the instrument. The objective and constraint functions of the optimization problem are evaluated using the physics-based simulation model, which is computationally expensive. Moreover, the gradients of the objective and constraint functions can be discontinuous, unavailable, or hard to approximate reliably. Therefore, a surrogate-assisted derivative-free optimization strategy using the mesh adaptive direct search algorithm was employed. One example of a B♭ trumpet's bore is used to demonstrate the effectiveness of the design optimization approach: the obtained results improve previously reported objective function values significantly.
Fichier principal
Vignette du fichier
JASA_OPTIM_2018_V16-1.pdf (1.21 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01963668 , version 1 (30-09-2019)

Identifiants

Citer

Robin Tournemenne, Jean-François Petiot, Bastien Talgorn, Joel Gilbert, Michael Kokkolaras. Sound simulation-based design optimization of brass wind instruments. Journal of the Acoustical Society of America, 2019, 145 (6), pp.3795-3804. ⟨10.1121/1.5111346⟩. ⟨hal-01963668⟩
244 Consultations
398 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More