Abstract: A wing segment for an aircraft includes a first skin element with a material having anisotropic characteristics and a rib element arranged between leading and trailing edges of the wing segment. The first skin element is attached to the rib element such that deformation of the skin element results in a twist of the wing segment with respect to a main extension direction of the wing segment. The wing segment further includes a control unit to control deformation of the skin element in order to adjust the twist of the wing segment to achieve a predetermined twist of the wing segment.

Abstract: Awing box of an aircraft with a stiffened shell structure, consisting of fiber reinforced material includes a skin for absorbing shear loads, and several stringers arranged on the inner side of the wing box for absorbing axial loads, in which at least 60% of the mass of the stiffened shell structure is concentrated in the stringers, wherein the stringers provide at least 80% of the axial stiffness of the stiffened shell structure. In the specific case of wing structure, this embodiment allows the use of unbalanced laminates for the skin to induce higher nose-down twist of the wing box without any loss in bending stiffness and so envisaging higher weight saving capability.

Abstract: The invention relates to a strut system for the stabilization of the shell (2) of an aerodynamic aircraft component in a commercial aircraft, comprising a pair of connection supports (4a, 4b) connected on the inside to the shell (2) and opposing each other, between which connection supports (4a, 4b) several struts (5) extend to form a latticework structure (3), which struts (5) in nodal points (6a, 6b) arranged on the ends are non-detachably connected to the connection supports (4a, 4b), wherein the area extension of the latticework structure (3) is aligned in such a manner relative to a middle plane of symmetry (11) that the struts (5), formed with an open symmetrical cross section, as well as the cross section of the connection supports (4a, 4b), are arranged so as to be symmetrical to the aforesaid.

Abstract: Awing box of an aircraft with a stiffened shell structure, consisting of fiber reinforced material includes a skin for absorbing shear loads, and several stringers arranged on the inner side of the wing box for absorbing axial loads, in which at least 60% of the mass of the stiffened shell structure is concentrated in the stringers, wherein the stringers provide at least 80% of the axial stiffness of the stiffened shell structure. In the specific case of wing structure, this embodiment allows the use of unbalanced laminates for the skin to induce higher nose-down twist of the wing box without any loss in bending stiffness and so envisaging higher weight saving capability.

Abstract: A pressure bulkhead for an aerospace fuselage includes a bulkhead main portion having an approximately flat shape in unloaded state; and a frame supporting and connecting said bulkhead main portion to the fuselage; wherein said bulkhead main portion includes an airtight structure having a reticular component.

Abstract: The invention relates to a strut system for the stabilisation of the shell (2) of an aerodynamic aircraft component in a commercial aircraft, comprising a pair of connection supports (4a, 4b) connected on the inside to the shell (2) and opposing each other, between which connection supports (4a, 4b) several struts (5) extend to form a latticework structure (3), which struts (5) in nodal points (6a, 6b) arranged on the ends are non-detachably connected to the connection supports (4a, 4b), wherein the area extension of the latticework structure (3) is aligned in such a manner relative to a middle plane of symmetry (11) that the struts (5), foamed with an open symmetrical cross section, as well as the cross section of the connection supports (4a, 4b), are arranged so as to be symmetrical to the aforesaid.

Abstract: A pressure bulkhead for an aerospace fuselage includes a bulkhead main portion having an approximately flat shape in unloaded state; and a frame supporting and connecting said bulkhead main portion to the fuselage; wherein said bulkhead main portion includes an airtight structure having a reticular component.