Honeycomb core structure for use in a structural panel for a...

B - Operations – Transporting – 32 – B

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B32B 3/12 (2006.01) B32B 3/18 (2006.01) B64C 1/40 (2006.01) G10K 11/172 (2006.01)

Patent

CA 2751070

The invention relates to a honeycomb core structure (202) for use in a structural panel for a jet engine nacelle, comprising at least one block with a honeycomb core (A, B) having a central part (5a, 5b) with core honeycomb cells (7a, 7b) and at least two lateral parts (9a, 9b) each comprising a number of honeycomb joining cells (11a, 11 b) of which at least one part of the honeycomb joining cells (11a, 11 b) has at least one additional wall (201a, 201 b) to form a join, the honeycomb core block(s) (A, B) being connected by at least one joint zone (213) formed by punching two additional walls (201a, 201b) superimposed one o the other and provided by honeycomb joining cells (11a, 11 b) belonging to the distinct lateral parts (9a, 9b). The invention further relates to a structural panel and a nacelle comprising such a structure (202) and a method for producing such a structure (202).

L'invention concerne une structure à âme alvéolaire (202) apte à être utilisée dans un panneau structurant pour une nacelle de turboréacteur comprenant au moins un bloc à âme alvéolaire (A, B) comprenant une partie centrale (5a, 5b) comportant des cellules alvéolaires de coeur (7a, 7b) et au moins deux parties latérales (9a, 9b) comportant chacune une pluralité de cellules alvéolaires de jonction (11a, 11 b) dont au moins une partie des cellules alvéolaires de jonction (11 11 b) comporte au moins une paroi supplémentaire (201a, 201 b) apte à former une jonction, le ou les blocs à âme alvéolaire (A, B) étant liés par au moins une zone de jonction (213) formée par poinçonnage de deux parois supplémentaires (201a, 201b) superposées l'une sur l'autre et provenant de cellules alvéolaires de jonction (11a, 11 b) appartenant à des parties latérales (9a, 9b) distinctes. L'invention concerne également un panneau structurant et une nacelle comportant une telle structure (202) ainsi qu'un procédé de fabrication d'une telle structure (202).

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