Efficiency comparison of CMS vibroacoustic formulations for uncertain damped problems - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2011

Efficiency comparison of CMS vibroacoustic formulations for uncertain damped problems

Résumé

When dealing with internal vibroacoustics, many formulations are available. The classical (u,p) approach uses physical variables (displacement of the structure, pressure in acoustic cavity), and alternatives exist based on a displacement or velocity potential variable instead of the acoustic pressure in the fluid. Each formulation has its own advantages and drawbacks which are addressed in this paper in the context of Component Mode Synthesis for model reduction, but globally all formulations exhibit the same behavior. Thus, the decoupled mode bases which are classically considered for CMS are identical in all formulations providing that the static pressure is not included in the formulation. So, the question addressed in this work deals with the strategies to take the static response of the fluid domain into account in the projection and on the ability of each formulation to adapt to these strategies. Many options are presented for each of the formulations and are applied for two study cases: a shoe box, that is a parallepipedic cavity and a curved box with a more complex geometry.
Fichier principal
Vignette du fichier
Ouisse2011.pdf (517.52 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Licence : CC BY - Paternité

Dates et versions

hal-02300611 , version 1 (22-02-2023)

Licence

Paternité

Identifiants

Citer

Morvan Ouisse, Emeline Sadoulet-Reboul. Efficiency comparison of CMS vibroacoustic formulations for uncertain damped problems. International Modal Analysis Conference, Jan 2011, Jacksonville, United States. pp.161-175, ⟨10.1007/978-1-4419-9507-0_17⟩. ⟨hal-02300611⟩
9 Consultations
11 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More