Orateur
M.
ARNAUD DUVAL
(Trèves CERA APS)
Description
Developing acoustically effective acoustic materials require not only a deep knowledge in vibro-acoustics, but also in the product-process parameters allowing the manufacturing of these optimized materials. Simulating the processes like foaming or thermoforming and link the corresponding results with the performance of the future feasible acoustic package is now key. For the latter, micro-macro approaches enable the chemist and the acoustic engineer to speak the same language using microstructure morphologies and converge together to an optimum poroelastic material design. The computed Biot parameters can then be integrated in large vibro-acoustic broadband simulation models, for determining the best acoustic multi-layer concepts and their optimal localization for weight reduction purpose for example. This comprehensive acoustic package optimization methodology will be illustrated in this presentation.
Auteur
M.
ARNAUD DUVAL
(Trèves CERA APS)