Tunable acoustic absorption system for an aircraft cabin

Details Tunable acoustic absorption system for an aircraft cabin Tunable acoustic absorption system for an aircraft cabin

B - Operations, Transporting

64

C

B64C 1/40 (2006.01)

Patent

CA 2600930

A tunable acoustic absorption system according to the present invention includes an airframe batting area; a primary soundproofing blanket area; an interior trim panel area; and a hard trim area, which are layered over an aircraft outer skin. Specifically tailoring or "tuning" materials within each area to the particular aircraft acoustic signature achieves significant increases in acoustic absorption achieved over conventional generic sound treatments.

La présente invention concerne un système d~absorption acoustique accordable qui comprend une zone de feutrage de cellule ; une zone de couverture d~insonorisation primaire ; une zone de panneau de garniture intérieure ; et une zone de garniture qui sont posées les unes sur les autres sur l~enveloppe externe d~un aéronef. Le fait de personnaliser spécifiquement ou 'accorder' les matériaux dans chacune des zones en fonction de la signature acoustique particulière de l~aéronef permet d~augmenter sensiblement l~absorption acoustique obtenue par comparaison aux traitements classiques du son générique.

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