Stiffeners for aircraft structural panels

Details Stiffeners for aircraft structural panels Stiffeners for aircraft structural panels

B - Operations, Transporting

64

C

B64C 1/00 (2006.01) B64C 1/12 (2006.01)

Patent

CA 2444227

An aircraft structural panel (10) of the skin-stiffener type such as is commonly used in aircraft construction, has a skin (15) supported by uniformly spaced stiffeners or frames (39). Stiffeners (39) are secured to skin (15) and extend outwardly from the associated skin (15). Each stiffener (39) has a horizontal body (38), an inner mounting flange (41), and an outer bowed flange (42). Mounting flange (41) and bowed flange (42) have free edges and respective inturned beads or curls (44, 46) are formed thereon for stiffening of flanges (41) and (42).

La présente invention concerne un panneau de structure d'aéronef (10) du type raidisseur de peau du type couramment utilisé dans la construction d'aéronefs, présentant une peau (15) supportée par des raidisseurs régulièrement répartis ou des cadres (39). Des raidisseurs (39) sont solidarisés à la peau (15) et s'étendent vers l'extérieur à partir de la peau (15) à laquelle ils sont associés. Chaque raidisseur (39) comporte un corps horizontal (38), une bride de fixation interne (41) et une bride externe arquée (42). La bride de fixation (41) et la bride arquée (42) présentent des bords libres et des moulures ou bourrelets tubulaires (44, 46) y sont formés permettant le raidissement des brides (41) et (42).

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