A double Y-shaped cross-section spar (100) for an aircraft torsion box including a spar web (110) having an I-shaped cross-section, an upper part connected by the spar web (110), a lower part including lower flanges (130a, 130b) configured to be connectable to a first panel (1010) of the torsion box, a first cross-section opened triangular-shaped structure (120) including first and second lower vertices (120a, 120b) respectively joined to the lower flanges (130a, 130b) and an upper vertex (120c) connected to a first end of the spar web (110) and the upper part comprising upper flanges (130c, 130d) connectable to a second panel (1020) panel of the torsion box, a second cross-section opened triangular-shaped structure (140) including first and second upper vertices (140a, 140b) respectively joined to the upper flanges (130c, 130d) and a lower vertex (140c) connected to a second end of the spar web (110).
DOUBLE Y-SHAPED SPAR MADE OF COMPOSITE MATERIAL
2025-05-08
Patent
Electronic Resource
English
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