A stiffened structural component for an aircraft includes a first material sheet with a first surface, and at least one elongate bulge that bulges out in a direction transverse to the first surface in order to stiffen the structural component, wherein each of the at least one bulge comprises two edges that extend along the first surface, wherein a continuous bulging surface extends between the edges, and wherein the bulges are formed integrally into the first material sheet through pressing.

A method is proposed for installing system components in a portion of an aircraft fuselage. The method provides at least one planar structural arrangement to be secured on or in the aircraft fuselage, secures system components on the structural arrangement, couples system lines to the system components and arranges the system lines on the structural arrangement. The method includes positioning of the structural arrangement with the system components and system lines arranged thereon at a designated installation location of the structural arrangement, and mechanical coupling of the structural arrangement to the aircraft fuselage.

A method is proposed for installing system components in a portion of an aircraft fuselage. The method provides at least one planar structural arrangement to be secured on or in the aircraft fuselage, secures system components on the structural arrangement, couples system lines to the system components and arranges the system lines on the structural arrangement. The method includes positioning of the structural arrangement with the system components and system lines arranged thereon at a designated installation location of the structural arrangement, and mechanical coupling of the structural arrangement to the aircraft fuselage.

A safety system for aircraft passenger seats is described. A pallet that can be removably coupled to seats can also be removably coupled to the aircraft floor and one or more brackets, tension fittings, or machined straps that can be coupled to structural beams or components in an aircraft. A keel tension fitting can be attached to a keel beam and then be coupled to the pallet and thereby the seats. By attaching to the keel beam the safety system allows the seating arrangement (pallet and seats) to withstand greater stresses and forces, resulting in increased safety.

An example floor panel for a flooring system in a passenger vehicle includes a top sheet, a bottom sheet, a body situated between the top sheet and the bottom sheet, and an interlocking feature that extends outward from the body for slidably engaging an adjacent floor panel. An example flooring system in a passenger vehicle includes a first set of floor panels including panels rigidly attached to a structure of the passenger vehicle, and a second set of floor panels and each floor panel of the second set of floor panels has an interlocking feature for slidably engaging an adjacent floor panel and for enabling lateral relative motion to occur and restricting vertical relative motion between panels of the second set of floor panels and a respective adjacent floor panel.

An example floor panel for a flooring system in a passenger vehicle includes a top sheet, a bottom sheet, a body situated between the top sheet and the bottom sheet, and an interlocking feature that extends outward from the body for slidably engaging an adjacent floor panel. An example flooring system in a passenger vehicle includes a first set of floor panels including panels rigidly attached to a structure of the passenger vehicle, and a second set of floor panels and each floor panel of the second set of floor panels has an interlocking feature for slidably engaging an adjacent floor panel and for enabling lateral relative motion to occur and restricting vertical relative motion between panels of the second set of floor panels and a respective adjacent floor panel.

A floor fixing assembly for releasable fixing of a leg of a frame to a vehicle floor comprises at least one retaining peg which can be fixed to the vehicle floor. The floor fixing assembly furthermore comprises a frame fixing element, which is configured to be connected to the leg of the frame and comprises at least one receiving space for receiving the retaining peg. A clamping device is configured to be introduced into the receiving space of the frame fixing element in order to connect the frame fixing element to the retaining peg by form fit.

An aircraft includes a fuselage airframe and a wing airframe that is subject to flight loads. The fuselage airframe includes fore/aft floor beams having a plurality of floor intercostals laterally extending therebetween and fore/aft roof beams with a plurality of roof intercostals laterally extending therebetween. Each of a plurality of cabin frames extends generally vertically between respective floor and roof beams. The wing airframe includes forward and aft wing spars with a plurality of wing ribs extending therebetween. At least one fuel tank, that is configured to contain a pressurized fuel such as pressurized hydrogen fuel, integrally forms at least a portion of one of the beams, the intercostals, the frames, the spars and/or the ribs such that the fuel tank is subject to the flight loads.

A flooring system for enclosures or vehicles, such as an aircraft flooring architecture, includes a flooring panel with at least an upper layer, a core ply, and a bottom layer. The bottom layer of the flooring panel has a top face and a bottom face, an upper layer of the flooring panel has an upper face and a lower face, and a core ply of the flooring panel has an upper surface bonded to the lower face of the upper layer and a bottom surface bonded to the top face of the bottom layer. The bottom face of the bottom layer is located on a structural floor of an enclosure or vehicle, such as the aircraft, and the bottom layer of the flooring panel slides over the structural floor.

A flooring system for enclosures or vehicles, such as an aircraft flooring architecture, includes a flooring panel with at least an upper layer, a core ply, and a bottom layer. The bottom layer of the flooring panel has a top face and a bottom face, an upper layer of the flooring panel has an upper face and a lower face, and a core ply of the flooring panel has an upper surface bonded to the lower face of the upper layer and a bottom surface bonded to the top face of the bottom layer. The bottom face of the bottom layer is located on a structural floor of an enclosure or vehicle, such as the aircraft, and the bottom layer of the flooring panel slides over the structural floor.