METHOD FOR MANUFACTURING AN ADAPTIVE WING WITH FLEXIBLE GAPLESS MECHANIZATION Russian patent published in 2022 - IPC B64C3/48 

FIELD: aircraft industry.

SUBSTANCE: invention relates to the field of aircraft (airplanes, cruise and feathered missiles, helicopters), in particular to the adaptive elements of their designs and methods for their manufacture. The method for manufacturing an adaptive wing with flexible gapless mechanization is characterized by the fact that first the frame of the nose part of the wing and the frame of the tail part of the wing are made, consisting of pivotally connected rotary links. The links consist of: rigid for bending and torsion stringers with a height equal to the local thickness of the profile, while the stringers are made integral with the hinge joints for mating with the ribs, and the front of the frame of the bow and the shank of the frame of the tail of the wing are made in the form of supporting stringers profiled according to the profile of the wing solid section with a chord size of at least 5-10% of the local wing chord; elastomeric panels consisting of SDS cells, the central elements of which are oriented normal to the axis of rotation of their link, while the central elements are momentarily connected to the support stringers of adjacent links, to form a single curvilinear chain of SDS cells, in which the end of one SDS cell coincides with the beginning of another. The planes of all elements of SDS-cells: central, supporting and peripheral ones are oriented normally to the median plane of the flexible gapless mechanization. SDS-cells are made of different heights both along the chord and along the span of the wing, in accordance with the aerodynamic profile of the wing in the area of ​​flexible gapless mechanization, underestimated by the thickness of the elastic film or tensile fabric stretched over the frame, while in sections of the profile with a local profile height of less than 5 10% of the local chord, in the area of ​​the front end of the nose and tail of the tail of the wing, elastomeric panels adjacent to the front of the nose and tail of the tail of the wing, are made with a height equal to the local profile thickness, and in sections of the profile with a local profile height of more than 5-10 % of the local chord, in the area of ​​the wing box, the elastomeric panels adjacent to the wing box are made in the form of two halves of the upper and lower, with the height of each of them not less than 40% of the local profile thickness. Next, curvilinear power ribs of variable geometry are made in such a way that the axes of rotation of the pivotally connected deflectable sections of the power ribs adjacent to each other are oriented parallel to the spanwise direction of the respective support stringers of the adjacent link. Next, the stringers are mounted to the ribs by means of hinge joints, power drives are mounted to deflect the frame links, then the space between the walls of the supporting stringers, the walls of the central, supporting and peripheral elements of the SDS cells, as well as the walls of the deflected sections of the power ribs, is filled with a self-foaming elastomeric filler. Next, the frame of the nose part of the wing and the frame of the tail part of the wing are covered with a pre-stretched elastic film or an extensible fabric. Next, the frame of the nose part of the wing and the frame of the tail part of the wing are connected with a caisson with a rigid detachable connection. Curvilinear power ribs of variable geometry, support stringers, as well as SDS-cells are made by the method for rapid 3-D prototyping or by the method for three-dimensional weaving, controlled by a weaving production computer.

EFFECT: adaptive wing with flexible gapless mechanization manufacturing method improvement.

2 cl, 4 dwg