Composite material structure for aircraft fuselage and...

B - Operations – Transporting – 64 – C

Patent

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Details

B64C 1/00 (2006.01) B29C 70/34 (2006.01)

Patent

CA 2677039

The present invention provides a closed structure of composite material for aircraft fuselage shaped on a male tool from which it can be separated in a predetermined direction, wherein said structure comprises a sole outer panel and a plurality of interior longitudinal rigid supports integrated in said panel, in such a way that the dilation coefficient of the male tool is greater than the dilation coefficient of the composite material of the structure, thereby facilitating in a sole operation extraction of the manufactured structure, formed by the panel and the integrated rigid supports. The present invention also supplies a method for manufacture of a structure enclosed as described.

La présente invention concerne une structure fermée en matière composée pour le fuselage d'un aéronef formée sur un instrument mâle susceptible de s'en détacher dans une direction déterminée. La structure comprend un seul panneau extérieur et une pluralité de raidisseurs longitudinaux intérieurs intégrés dans le panneau de sorte que le coefficient de dilatation de l'instrument mâle soit supérieur au coefficient de dilatation de la matière composée de la structure, avec pour effet une extraction en une seule fois de la structure préalablement fabriquée, formée par le panneau et les raidisseurs intérieurs intégrés. La présente invention concerne également un procédé de fabrication d'une telle structure fermée.

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