Wing variable camber trailing edge tip

摘要

A flexible tip for integration in a wing trailing edge employs a wing structure rear spar. A flexible upper skin is attached at a forward boundary to the spar and a rigid lower skin is interconnected to the flexible upper skin at a rigid tail piece. At least one actuation link is attached to the rigid tail piece and has a hinge at a forward edge of the rigid lower skin. At least one positioning slider is attached to the hinge which is movable from a neutral position to a first extended position urging the hinge aft for rotation of the rigid lower skin upward and flexing of the flexible upper skin in an upward camber and to a second retracted position urging the hinge forward for rotation of the rigid lower skin downward and flexing of the flexible upper skin in a downward camber.

主权项

1. An apparatus for varying a camber of an aircraft wing, comprising:
an aircraft wing; a flexible trailing edge connected to an aft end of the wing, said flexible trailing edge comprising; a fixed length flexible upper surface; a rigid lower surface extending from an actuation hinge; at least one actuation link on an inner surface of the rigid lower skin extending between the actuation hinge and a second hinge; and, a tail piece connected at the second hinge to the rigid lower surface and interconnecting the flexible upper surface, said tail piece conforming to a shape induced by flexing of the upper surface; at least one slider link having forward and aft ends, wherein the aft end of said slider link is secured to the flexible trailing edge rigid lower surface at the hinge; a bell crank actuating mechanism arranged internally to the wing, forward of said trailing edge rigid lower surface; wherein said bell crank actuating mechanism is pivotably connected to the forward end of the slider link; and wherein when the bell crank mechanism is actuated, the slider link moves in a forward and aft direction urging the hinge in a forward and aft direction causing the flexible upper surface to bend, selectively varying the wing camber.