STRUCTURAL COMPONENT COMPRISING AT LEAST ONE MAIN-LOAD-BEARING COVERING SHELL AND A CARRIER STRUCTURE FOR FIXING THE MAIN-LOAD-BEARING COVERING SHELL, AND FLOW BODY COMPRISING SUCH A STRUCTURAL COMPONENT

• US 20140050884A1
• Filed: 01/16/2013
• Published: 02/20/2014
• Est. Priority Date: 07/20/2010
• Status: Active Grant

• Current Assignee: Airbus Operations GmbH (Airbus SE)
• Original Assignee: Airbus Operations GmbH (Airbus SE)
• Inventors: Zuardy, Ichwan, Zahlen, Pierre, Herrmann, Axel Siegfried
• Granted Patent: US 9,371,128 B2
• Time in Patent Office: Days
• US Class Current: 428/137
• CPC Class Codes: B29D 99/0021 provided with plain or filled structures, e.g. cores, placed between two or more plates or sheets, e.g. in a matrix
• CPC Class Codes: B32B 2266/0214 Materials belonging to B32B27/00
• CPC Class Codes: B32B 2266/04 Inorganic
• CPC Class Codes: B32B 2266/045 Metal
• CPC Class Codes: B32B 2307/102 Insulating
• CPC Class Codes: B32B 2307/54 Yield strength; Tensile strength
• CPC Class Codes: B32B 2307/5825 Tear resistant
• CPC Class Codes: B32B 2605/18 Aircraft blades, propellers B32B2603/00
• CPC Class Codes: B32B 2607/00 Walls, panels
• CPC Class Codes: B32B 3/02 characterised by features of form at particular places, e.g. in edge regions non-uniform thickness B32B3/263
• CPC Class Codes: B32B 3/06 for securing layers together; for attaching the product to another member, e.g. to a support , or to another product, e.g. groove/tongue, interlocking
• CPC Class Codes: B32B 3/08 characterised by added members at particular parts layer formed of separate pieces of material which are juxtaposed side-by-side B32B3/14, B32B3/18
• CPC Class Codes: B32B 3/28 characterised by a layer comprising a deformed thin sheet , i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled B32B29/08 takes precedence
• CPC Class Codes: B32B 3/30 characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs apertured layer B32B3/266; layer with cavities or internal voids B32B3/26
• CPC Class Codes: B32B 5/18 characterised by features of a layer of foamed material
• CPC Class Codes: B32B 7/04 Interconnection of layers
• CPC Class Codes: B64C 1/12 Construction or attachment of skin panels
• CPC Class Codes: B64C 3/20 Integral or sandwich constructions
• CPC Class Codes: B64C 3/26 Construction, shape, or attachment of separate skins, e.g. panels
• CPC Class Codes: B64D 2045/0085 Devices for aircraft health monitoring, e.g. monitoring flutter or vibration
• CPC Class Codes: B64D 45/00 : Aircraft indicators or protectors not otherwise provided for camouflage F41H3/00
• CPC Class Codes: G01N 19/08 : Detecting presence of flaws or irregularities
• CPC Class Codes: Y10T 428/239 : Complete cover or casing
• CPC Class Codes: Y10T 428/24 : Structurally defined web or sheet [e.g., overall dimension, etc.]
• CPC Class Codes: Y10T 428/24322 : Composite web or sheet
• CPC Class Codes: Y10T 428/249923 : Including interlaminar mechanical fastener

Abstract

Structural component including at least one covering shell and a carrier structure, the covering shell designed in the form of a sandwich and formed by an inner skin section, an outer skin section and a shear-load absorbing core layer disposed between the two sections and connecting the inner and the outer skin sections to one another in a planar manner. The carrier structure is formed by at least one panel-shaped connecting part extending between and transversely to the inner and outer skin sections and connected along a reference longitudinal direction to the covering shell. The connecting part is located outside the carrier structure and fastened to the inner skin section resting thereon in a planar manner, wherein at least one profiled support extending along the reference longitudinal direction is provided in the covering shell in order to form a reinforcing section in the connecting region of the panel-shaped connecting part.

Claims

1. Structural component with at least one main-load bearing skin shell and a support structure for fixing the skin shell,

wherein the skin shell is formed as sandwich and from an inner skin section, an outer skin section and a core layer which is disposed therebetween and which connects the inner and the outer skin section in a laminar manner,

characterized in that

the support structure is formed of a plate-shaped connection piece which extends between and across these and is connected with the skin shell along a reference longitudinal direction, wherein the plate-shaped connection piece is disposed at the support structure outside the support structure for supporting the skin shell and connected to the inner skin section adjacent to the inner skin section,

in the skin shell at least one profile carrier is disposed which extends along the reference longitudinal direction for forming reinforcement section in the connecting region of the plate-shaped connection piece, wherein the at least one profile carrier is connected to the inner skin section and outer skin section for stabilization of skin shell in the case of a damage of the same and which thereby supports the inner skin section and outer skin section with regard to each other from the outside.

2. Structural component according to claim 1, characterized in that in the connection region of the plate-shaped connection component along the reference longitudinal direction a multitude of reinforcement components are integrated.

3. Structural component according to claim 1, characterized in that at least some of the reinforcement components in each case are disposed in the core layer such that the inner ends thereof at least partially penetrate at least the inner skin section and/or the outer skin section, wherein in particular the inner skin section and the outer skin section in each case comprise several layers and at least a part of the reinforcement components penetrate at least a first layer.

27. Flow body with a structural component with a main-load bearing skin shell according to claim 1, wherein the main-load bearing skin shell is the skin of the flow body.

4. Structural component with at least one main-load bearing skin shell and a support structure for fixing the skin shell,

wherein the skin shell is formed as sandwich and from an inner skin section, an outer skin section and a core layer which is disposed therebetween and which connects the inner and the outer skin section in a laminar manner,

characterized in that

the support structure is formed from a plate-shaped connection piece which extends between and across these and is connected with the skin shell along a reference longitudinal direction, wherein the plate-shaped connection piece is disposed at the support structure outside the support structure for supporting the skin shell and connected to the inner skin section adjacent to the inner skin section,

that in the connection region of the plate-shaped connection component along the reference longitudinal direction a multitude of reinforcement components are integrated,

that at least some of the reinforcement components in each case are disposed in the core layer such that the inner ends thereof at least partially penetrate at least the inner skin section and/or the outer skin section.

5. Structural component according to claim 4, characterized in that the inner skin section and the outer skin section in each case comprise several layers, wherein the reinforcement components penetrate at least a first layer of the inner skin section and the outer skin section.

6. Structural component according to claim 4, characterized in that the skin shell at least one profile carrier is disposed which extends along the reference longitudinal direction for forming a reinforcement section in the connecting region of the plate-shaped connection component, which is connected to the inner skin section and outer skin section for stabilization of the skin shell in the case of a damage of the same and which thereby supports the inner skin section and outer skin section with regard to each other from the outside.

7. Structural component according to claim 4, characterized in that the support structure comprises at least one rib arrangement which extends between and across the same and is connected with the skin shell along a reference longitudinal direction for supporting the skin shell to the support structure in a laminar manner, wherein the support structure comprises:

the plate-shaped connection component which extends in the longitudinal direction of the rib arrangement and which is formed as a flange component, which is connected with a connecting region of the inner skin section of the skin shell and a rib which follows on from the flange component and protrudes from the skin shell in a reference longitudinal direction of the rib arrangement.

8. Structural component according to claim 4, characterized in that the connection piece for connecting the same with skin shell (B) is in a laminar manner bonded to the inner skin section due to an adhesive or is connected thereto by means of fasteners like in particular rivets.

9. Structural component according to claim 4, characterized in that reinforcement components are integrated in an intermediate region along the reference longitudinal direction and along a lateral end of the skin shell section.

10. Structural component according to claim 9, characterized in that the intermediate region for the arrangement of the reinforcement devices extends in an area from an edge of the end of the core layer to a distance of a maximum of ten times the thickness of the skin shell.

11. Structural component according to claim 4, characterized in that several reinforcement components are disposed beside each other in an area across the longitudinal direction of the rib arrangement and in that several reinforcement components are disposed along reinforcement profiles and along the longitudinal direction of the rib arrangement.

12. Structural component according to claim 4, characterized in that at least one reinforcement profile carrier is provided which is formed of two profile plates, one of which is connected to the inner skin section and the respective other one is connected to the outer skin section, and a support rib that connects the aforesaid and that its profile cross section is a double-T profile cross section.

13. Structural component according to claim 12, characterized in that at edge portions which define the connecting region in each case two reinforcement profile carriers are disposed side by side, between which reinforcement components are inserted in the core layer.

14. Structural component according to claim 13, characterized in that reinforcement components are inserted such that the ends of a respective one of the reinforcement components at least partially penetrate a profile plate being disposed at the inner skin section and a profile plate being disposed at the outer skin section, the profile plates being part of reinforcement profile carriers which lay side by side to each other.

15. Structural component according to claim 4, characterized in that at least one reinforcement profile carrier is provided, which is formed of two profile plates and two support ribs, wherein one of the two profile plates is connected to the inner skin section and the other one of the two profile plates is connected to the outer skin section, in that the profile cross section of the reinforcement profile carrier is a box-shaped profile cross section.

16. Structural component according to claim 15, characterized in that reinforcement components are inserted such that the ends of a respective one of the reinforcement components at least partially penetrate a profile plate being disposed at the inner skin section and a profile plate being disposed at the outer skin section, the profile plates being part of the same reinforcement profile carrier.

17. Structural component according to claim 4, characterized in that along at least one reinforcement profile carrier in the longitudinal direction of the rib arrangement several reinforcement components are integrated which project through at least 85% of the shear-force-absorbing core layer in the latter'"'"'s thickness direction in order to improve the crack resistance of the skin shell in the outer edge section.

18. Structural component according to claim 4, characterized in that reinforcement components in the skin shell are in each case arranged, in each case as reinforcement devices, in groups of reinforcement components, which groups are situated in a volume component of the skin shell, wherein the volume components are arranged one behind the other along the rib longitudinal direction, wherein each group of a volume component in each case comprises a combination of at least two reinforcement components whose alignments in each case deviate by a maximum of 30 degrees from the thickness direction of the skin shell, and which are arranged in a regular or irregular manner around a centre axis of the volume component.

19. Structural component according to claim 18, characterized in that at least part of the reinforcement devices comprise pairs of reinforcement components whose reinforcement components in pairs comprise X-shaped orientations when viewed in the direction of the longitudinal extension of the outer edge section of the skin shell.

20. Structural component according to claim 4, characterized in that the angle between the longitudinal direction of the respective reinforcement component and the thickness direction of the skin shell at this position is within a range of between 45 degrees and 10 degrees.

21. Structural component according to claim 4, characterized in that reinforcement components at least in part are of a pin-shaped design.

22. Structural component according to claim 21, characterized in that one end of reinforcement components in each comprises a foot-like widened part.

23. Structural component according to one of claim 4, characterized in that reinforcement components are of a needle-shaped design.

24. Structural component according to claim 4, characterized in that the shear-force-absorbing core layer comprises a reinforcement region which extends in one of the two intermediate regions and along the rib arrangement longitudinal direction and across the longitudinal direction of the shear-force-absorbing core layer and through the same, wherein the reinforcement region comprises a material that provides at least twice the stiffness of the shear-force-absorbing core layer.

25. Structural component according to claim 24, characterized in that the core-layer reinforcement region comprises resin.

26. Structural component according to claim 24, characterized in that in each case several reinforcement components at least in part project through the reinforcement region.