G - Physics – 10 – K
Patent
G - Physics
10
K
G10K 11/168 (2006.01) F02C 7/045 (2006.01)
Patent
CA 2682306
The invention relates to a method for producing an acoustically resistive structure which can be mounted on a honeycomb structure such as to produce a skin for acoustical treatment, said acoustically resistive structure including at least one porous layer (34) and at least one reinforcing structure (36) which are glued together. The invention is characterised in that the method comprises the following steps in which: an amorphous adhesive is applied to the at least one reinforcing structure (36), the reinforcing structure (36) is subsequently perforated or micro-perforated, and the at least one porous layer is applied against the surface of the reinforcing structure (36) that was coated with amorphous adhesive.
L'objet de l'invention est un procédé de réalisation d'une structure acoustiquement résistive susceptible d'être rapportée sur une structure alvéolaire de manière à obtenir un revêtement pour le traitement acoustique, ladite structure acoustiquement résistive comprenant au moins une couche poreuse (34) et au moins une structure de renfort (36) assemblées par collage, caractérisé en ce qu'il consiste à: appliquer une colle de type amorphe sur ladite au moins une structure de renfort (36); perforer ou micro-perforée la structure de renfort (36) après l'application de la colle de type amorphe; et appliquer contre la face de la structure de renfort (36) revêtue de colle de type amorphe ladite au moins une couche poreuse.
Bossis Jean-Christophe
Lalane Jacques
Menier Christophe
Poignonec Jean-Marc
Airbus France
Airbus Operations Sas
Robic
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