Review of statistical energy analysis hypotheses in vibroacoustics - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences Année : 2014

Review of statistical energy analysis hypotheses in vibroacoustics

Résumé

This paper is a discussion of the equivalence between rain-on-the-roof excitation, diffuse field and modal energy equipartition hypotheses when using statistical energy analysis (SEA). A first example of a simply supported plate is taken to quantify whether a field is diffuse or the energy is equally distributed among modes. It is shown that the field can be diffuse in a certain region of the frequency-damping domain with a single point force but without energy equipartition. For a rain-on-the-roof excitation, the energy becomes equally distributed, and the diffuse field is enforced in all regions. A second example of two plates coupled by a light spring is discussed. It is shown that in addition to previous conclusions, the power exchanged between plates agrees with the statistical prediction of SEA if and only if the field is diffuse. The special case of energy equipartition confirms this observation.
Fichier principal
Vignette du fichier
Article_rsproca_V9.pdf (470.94 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-00918078 , version 1 (13-12-2013)

Identifiants

Citer

Thibault Lafont, Nicolas Totaro, Alain Le Bot. Review of statistical energy analysis hypotheses in vibroacoustics. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014, 470, pp.20130515. ⟨10.1098/rspa.2013.0515⟩. ⟨hal-00918078⟩
302 Consultations
957 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More