G - Physics – 10 – K
Patent
G - Physics
10
K
G10K 11/172 (2006.01) E04C 2/32 (2006.01) E04C 2/36 (2006.01) F02C 7/045 (2006.01) F02K 1/82 (2006.01)
Patent
CA 2488818
The invention concerns a method for making a soundproofing panel with at least one double resonator used for example on pods enclosing aircraft turbojets. Said method is characterized in that the septum is formed by assembling a plurality of parts against one of the honeycomb cores, said parts being cut out in foil, said parts being defined to enable the shape of the septum to be more or less adapted to extensible surfaces, said parts enabling significant reduction of the cost for perforating the septum.
L~invention propose un procédé de fabrication de panneaux acoustiques à double résonateur au moins utilisés par exemple sur les nacelles entourant les turboréacteurs des avions. Un tel procédé est remarquable en ce que le septum est constitué par l~assemblage d~une pluralité de pièces contre l~un des nids d~abeilles, ces pièces étant découpées dans du feuillard, ces pièces étant définies pour permettre l~approximation de la forme du septum par des surfaces développables, ces pièces permettant une réduction importante du coût de perçage du septum.
Aircelle
Hurel Hispano
Robic
LandOfFree
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