IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0234807
(2005-09-23)
|
등록번호 |
US-7681835
(2010-04-21)
|
발명자
/ 주소 |
- Simpson, Craig B.
- Ashton, Larry J.
- Allman, Mike G.
- Tuttle, Steven T.
|
출원인 / 주소 |
- Rocky Mountain Composites, Inc.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
14 인용 특허 :
33 |
초록
▼
A single piece co-cured composite wing is disclosed. The wing has a flying surface and structural members. In one embodiment the structural members may be a plurality of spars. The spars may have various shapes to increase the buckling strength. The spars may be wave shaped, such as a sinusoidal sha
A single piece co-cured composite wing is disclosed. The wing has a flying surface and structural members. In one embodiment the structural members may be a plurality of spars. The spars may have various shapes to increase the buckling strength. The spars may be wave shaped, such as a sinusoidal shape. The flying surface and the structural members are co-cured in order to form a single piece, integral wing structure. A process for manufacturing a single piece co-cured wing is also disclosed. The process may include laying out composite sheets for the flying surface of the wing. Then, the composite material of the spars is arranged around a plurality of pressurizable forms. Finally, the composite material is cured in a clamshell frame. A single piece co-cured composite structure is also disclosed that includes an outer skin, and inner skin, a frame, and a stringer.
대표청구항
▼
What is claimed and desired to be secured by United States Letters Patent is: 1. A single piece co-cured composite structure comprising: a composite skin, the skin comprising an inner skin and an outer skin; a composite frame having a length, the frame comprising a core of fibers, wherein the frame
What is claimed and desired to be secured by United States Letters Patent is: 1. A single piece co-cured composite structure comprising: a composite skin, the skin comprising an inner skin and an outer skin; a composite frame having a length, the frame comprising a core of fibers, wherein the frame extends inward from the outer skin; and a composite stringer having a length, the stringer comprising a core of fibers, wherein the stringer extends inward from the outer skin, wherein the fibers of the core of the frame is interwoven with the fibers of the core of the stringer, wherein the skin, the frame, and the stringer form a single piece co-cured composite structure. 2. The apparatus, as recited in claim 1, wherein the core of the frame comprises unidirectional fibers aligned along the length of the frame. 3. The apparatus, as recited in claim 1, wherein the core of the stringer comprises unidirectional fibers aligned along the length of the stringer. 4. The apparatus, as recited in claim 1, wherein the fibers of the frame and stringer are woven together in successive layers. 5. The apparatus, as recited in claim 1, wherein the frame extends through the inner skin. 6. The apparatus, as recited in claim 1, wherein the stringer extends through the inner skin. 7. The apparatus, as recited in claim 1, wherein the frame comprises a frame base, wherein the frame base is interwoven with the skin. 8. The apparatus, as recited in claim 1, wherein the stringer comprises a stringer base, wherein the stringer base is interwoven with the skin. 9. The apparatus, as recited in claim 1, wherein the frame comprises a frame shear-ply that extends partially around the core of the frame. 10. The apparatus, as recited in claim 9, wherein the frame shear-ply is comprised of fibers orientated about 45° relative to the length of the frame. 11. The apparatus, as recited in claim 1, wherein the stringer comprises a stringer shear-ply that extends partially around the core of the stringer. 12. The apparatus, as recited in claim 11, wherein the stringer shear-ply is comprised of fibers orientated about 45° relative to the length of the stringer. 13. A single piece co-cured composite structure comprising: a composite skin comprising an inner skin and an outer skin; a composite frame having fibers, the frame extending inward from the outer skin; and a composite stringer having fibers, the stringer extending inward from the outer skin, wherein the fibers of the stringer are interwoven with the fibers of the frame, wherein the skin, the frame, and the stringer form a single piece co-cured composite structure. 14. The apparatus, as recited in claim 13, wherein the fibers of the frame and the fibers of the stringer are interwoven with the skin. 15. The apparatus, as recited in claim 13, wherein the frame comprises a frame shear-ply, wherein the frame shear-ply is comprised of fibers orientated about 45° relative to the length of the frame. 16. The apparatus, as recited in claim 13, wherein the stringer comprises a stringer shear-ply, wherein the stringer shear-ply is comprised of fibers orientated about 45° relative to the length of the stringer. 17. The apparatus, as recited in claim 13, wherein the frame comprises fibers aligned along the length of the frame. 18. The apparatus, as recited in claim 13, wherein the stringer comprises fibers aligned along the length of the stringer. 19. A method for manufacturing a single piece co-cured structure comprising a skin, a frame, and a stringer, the skin comprising an inner skin and an outer skin, wherein the skin, frame, and stringer are interwoven together, the method comprising: forming the inner skin of composite material on a mandrel comprising a frame provision and a stringer provision; cutting the inner skin along the frame provision; disposing a frame shear-ply of composite material within the frame provision to form the frame, the frame shear-ply covering a portion of the inner skin; cutting the inner skin along the stringer provision; disposing a stringer shear-ply of composite material within the stringer provision to form the stringer, the stringer shear-ply covering a portion of the inner skin; forming the outer skin of composite material over the inner skin, frame shear-ply, and stringer shear-ply; co-curing the skin, the frame, and the stringer as a single piece composite structure. 20. The method of claim 19, further comprising cutting the frame shear-ply along the stringer provision. 21. The method of claim 19, further comprising cutting the stringer shear-ply along the stringer provision. 22. The method of claim 19, further comprising removing the mandrel. 23. The method of claim 19, further comprising disposing frame core composite material within frame provision so that the frame shear-ply material partially surrounds the frame core composite material. 24. The method of claim 23, wherein the frame core composite material comprises unidirectional fibers aligned with the length of the frame provision. 25. The method of claim 19, further comprising disposing stringer core composite material within stringer provision so that the stringer shear-ply material partially surrounds the stringer core composite material. 26. The method of claim 25, wherein the stringer core composite material comprises unidirectional fibers aligned with the length of the stringer provision. 27. The method of claim 25, wherein frame comprises frame core composite material, the frame core composite material interwoven with the stringer core composite material. 28. The method of claim 19, further comprising disposing an insert tool within the frame provision of the mandrel. 29. The method of claim 28, wherein the insert tool comprises an insert stringer provision to facilitate interweaving the stringer with the frame. 30. The method of claim 28, further comprising disposing an inner support skin on the insert tool to help form the frame. 31. The method of claim 28, further comprising removing the insert tool from the frame provision of the mandrel, once the single piece composite structure has been cured. 32. The method of claim 19, further comprising disposing an insert tool within the stringer provision. 33. The method of claim 32, further comprising removing the insert tool from the stringer provision of the mandrel, once the single piece composite structure has been cured. 34. The method of claim 33, wherein an insert tool is disposed within the frame provision, wherein the insert tool disposed within the frame provision and the insert tool disposed within the stringer provision overlap. 35. The method of claim 19, further comprising disposing intersection pads at an intersection of the frame provision with the stringer provision on the mandrel.
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