STRINGER (OPTIONS), METHOD FOR CREATING A STRINGER MODEL, METHOD FOR MANUFACTURING A STRINGER, AIRCOMMUNICATION DEVICE (OPTIONS), FLIGHT VEHICLE (OPTIONS), COMPUTER AND PURCHASING UNIT

摘要

1. The stringer of an aerospace device, characterized in that it is made of a multilayer composite material, having a substantially L-shaped cross section along its length, and a geometry that changes along at least part of its length with increasing distance in the direction along its length, and containing a base and rib extending from the base, the first surface of the base, made with the possibility of its fit to the structure of the aerospace device, the second surface of the base located on the opposite side from the first surface, the third surface located on or in the rib on the same layer of composite material with the first surface, and the fourth surface located on the rib on the same side as the second surface, and the above geometry change is made in the form of a shift of the first surface in the direction to the second surface, the displacement of the fourth surface towards the third surface, and thereby reducing the risk of unwanted wrinkles, stresses or stretching of the layers of the composition material in the zone of change of the above geometry during manufacture. ! 2. The stringer according to claim 1, in which the aforementioned change in geometry along at least part of its length with increasing distance in the indicated direction is made in the form of a displacement of the second surface in the direction from the second surface to the first surface and a displacement of the third surface in the direction from the third surface to fourth surface. ! 3. The stringer according to claim 1 or 2, which in its cross section with the above-mentioned change in geometry along at least