Optimized torsion box for an aircraft

摘要

An aircraft lifting surface with a torsion box of a composite material including an upper skin, a lower skin, a front spar, a rear spar, one or more intermediate spars and transverse ribs arranged between the rear spar and an adjacent intermediate spar and/or between the front spar and the adjacent intermediate spar.

主权项

1. An aircraft lifting surface comprising:
a torsion box and leading and trailing edges; the torsion box comprising an upper skin, a lower skin, a front spar, a rear spar and intermediate spars of a composite material, wherein the torsion box further comprises a plurality of transverse ribs of a composite material arranged between the rear spar and the intermediate spar adjacent the rear spar or between the front spar and the intermediate spar adjacent the front spar, and the torsion box further comprises at least one longitudinal stringer in a cell of the torsion box delimited by spars which do not include transverse ribs.