Modeling sound-insulation layers in vibroacoustic systems

C. Fernandez (1, 2) , Christian Soize (1) , L. Gagliardini (2)

1 LaM - Laboratoire de Mécanique
2 PSA Peugeot Citroen

This paper presents a new approach in modeling layered sound absorbing materials. This approach builds a probabilistic model based on the fuzzy structure theory and takes into account internal resonances of the structure. An experimental identification of the mean parameters of the model and its experimental validation are presented.

Mots clés: sound-insulation layers; vibroacoustic; fuzzy structure theory; random uncertainties

Domaines: Acoustique [physics.class-ph]; Acoustique [physics.class-ph]; Vibrations [physics.class-ph]; Vibrations [physics.class-ph]; Statistiques [math.ST]; Théorie [stat.TH]

C. Fernandez, Christian Soize, L. Gagliardini. Modeling sound-insulation layers in vibroacoustic systems. 1st International Conference on Uncertainty in Structural Dynamics, 2007, University of Sheffield, Jun 2007, Sheffield, United Kingdom. pp.Pages: 1-10. ⟨hal-00689711⟩