Resin infused transparent skin panel and method of making same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-003/24
B64C-001/14
B29D-031/505
출원번호
UP-0021005
(2008-01-28)
등록번호
US-7651756
(2010-02-24)
발명자
/ 주소
Albers, Robert G.
Nordman, Paul S.
출원인 / 주소
The Boeing Company
대리인 / 주소
Harness, Dickey & Pierce, P.L.C.
인용정보
피인용 횟수 :
10인용 특허 :
20
초록▼
An aircraft that has a structural skin panel. The structural skin panel has: at least one metal sheet having a cutout portion and a perimeter portion, the perimeter portion having a plurality of spaced apart perforations formed therein; and first and second fiber reinforced performs that are general
An aircraft that has a structural skin panel. The structural skin panel has: at least one metal sheet having a cutout portion and a perimeter portion, the perimeter portion having a plurality of spaced apart perforations formed therein; and first and second fiber reinforced performs that are generally transparent and that sandwich the at least one metal sheet therebetween and overlay the perimeter portion. An optically transparent resin saturates the first and second fiber reinforced performs and fills the perforations in the at least one metal sheet. Portions of the fiber reinforced preforms that overlay the cutout form a window portion in the structural skin panel.
대표청구항▼
The invention claimed is: 1. An aircraft comprising: a structural skin panel including: at least one metal sheet having a cutout portion and a perimeter portion, said perimeter portion having a plurality of spaced apart perforations formed therein; a first fiber reinforced preform disposed against
The invention claimed is: 1. An aircraft comprising: a structural skin panel including: at least one metal sheet having a cutout portion and a perimeter portion, said perimeter portion having a plurality of spaced apart perforations formed therein; a first fiber reinforced preform disposed against a first side of the at least one metal sheet to overlay said perimeter portion, the first fiber reinforced preform being comprised of fibers that are generally transparent, the first fiber reinforced preform having dimensions sufficient to cover said cutout portion and to at least substantially cover said perimeter portion; a second fiber reinforced preform disposed against a second side of the at least one metal sheet to thus sandwich said at least one metal sheet between said first and second fiber reinforced preforms; said second fiber reinforced preform being comprised of fibers that are generally transparent, the second fiber reinforced preform having dimensions sufficient to cover said cutout portion and to at least substantially cover said perimeter portion; and an optically transparent resin saturating the first and second fiber reinforced preforms, and filling the perforations in the at least one metal sheet, to form said structural skin panel, with portions of said first and second fiber reinforced preforms that overlay said cutout forming a window portion in said structural skin panel. 2. The aircraft of claim 1, wherein said at least one metal sheet is comprised of aluminum. 3. The aircraft of claim 1, wherein said at least one metal sheet is comprised of titanium. 4. The aircraft of claim 1, wherein the fiber reinforced preform includes a plurality of fiber mesh sheets one atop the other. 5. The aircraft of claim 1, further comprising: an additional pair of metal sheets, with one of said pair of metal sheets being disposed against said first one of said fiber reinforced preforms, and a second one of said pair of metal sheets disposed against said second fiber reinforced preform; each one of said pair of metal sheets having a perimeter portion that forms a central cutout portion, and being of dimensions to correspond with those of said at least one metal sheet, and each including a plurality of spaced apart perforations; and said resin saturating said perforations and said perimeter portions of said additional pair of metal sheets. 6. The aircraft of claim 1, wherein said first and second fiber reinforced preforms each comprise fibers arranged to provide bidirectional strength. 7. The aircraft of claim 1, wherein said first and second fiber reinforced preforms each comprise fibers arranged unidirectionally to provide strength along one axis. 8. The aircraft of claim 1, wherein said resin comprises an aliphatic epoxy resin. 9. The aircraft of claim 1, wherein an index of refraction of fibers of said first and second fiber reinforced preforms matches an index of refraction of said resin. 10. An aircraft comprising: a fuselage formed at least in part by a structural skin panel; said structural skin panel including: at least one metal sheet having a cutout portion and a perimeter portion, said perimeter portion having a plurality of spaced apart perforations formed therein, said cutout portion being of dimensions sufficiently large to form a passenger window for said aircraft; a first fiber reinforced preform disposed against a first side of the at least one metal sheet to overlay said perimeter portion, the first fiber reinforced preform being comprised of fibers that are generally optically transparent, the first fiber reinforced preform having dimensions sufficient to cover said cutout portion and to cover said perimeter portion; a second fiber reinforced preform disposed against a second side of the at least one metal sheet to thus sandwich said at least one metal sheet between said first and second fiber reinforced preforms; said second fiber reinforced preform being comprised of fibers that are generally optically transparent, the second fiber reinforced preform having dimensions sufficient to cover said cutout portion and to cover said perimeter portion; and an optically transparent resin having an index of refraction that matches an index of refraction of said fibers of said first and second fiber reinforced preform, and saturating the first and second fiber reinforced preforms, and filling the perforations in the at least one metal sheet, to form said structural skin panel, with portions of said first and second fiber reinforced preforms that overlay said cutout forming a window portion in said structural skin panel; and said optically transparent resin including an aliphatic epoxy resin. 11. The aircraft of claim 10, wherein said at least one metal sheet comprises an aluminum sheet. 12. The aircraft of claim 10, wherein said at least one metal sheet comprises a titanium sheet. 13. The aircraft of claim 10, wherein said first and second fiber reinforced preforms each comprise fibers arranged unidirectionally to provide strength along one axis. 14. The aircraft of claim 10, wherein said first and second fiber reinforced preforms each comprise fibers arranged to provide bidirectional strength. 15. A method of forming a structural skin panel for use in constructing a fuselage of an aircraft, the method comprising: providing at least one metal sheet; forming a cutout portion in a metal sheet such that a perimeter portion is left surrounding said cutout portion; forming a plurality of spaced apart perforations in said perimeter portion of said metal sheet; positioning a first fiber reinforced preform against a first side of said metal sheet to overlay said perimeter portion, the first fiber reinforced preform being comprised of fibers that are generally transparent, the first fiber reinforced preform having dimensions sufficient to cover said cutout portion and to at least substantially cover said perimeter portion; positioning a second fiber reinforced preform against a second side of said metal sheet to thus sandwich said metal sheet between said first and second fiber reinforced preforms, said second fiber reinforced preform being comprised of fibers that are generally transparent, the second fiber reinforced preform having dimensions sufficient to cover said cutout portion and to at least substantially cover said perimeter portion of said metal sheet; thoroughly wetting the first and second fiber reinforced preforms with a resin during a molding operation and such that said perforations in said metal sheet are filled with said resin; selecting said resin to have an index of refraction to at least substantially match an index of refraction of fibers being used to form said first and second fiber reinforced preforms; and allowing said resin to cure such that said first and second fiber reinforced preforms and said metal sheet to form said structural skin panel, with said cutout portion in said metal sheet forming a passenger window portion of said structural panel. 16. The method of claim 15, wherein providing at least one metal sheet comprises providing a titanium sheet. 17. The method of claim 15, wherein providing at least one metal sheet comprises providing an aluminum sheet. 18. The method of claim 15, wherein said operations of positioning said first and second fiber reinforced preforms each comprise positioning a fiber reinforced preform having fibers arranged to provide unidirectional strength. 19. The method of claim 15, wherein said operations of positioning said first and second fiber reinforced preforms each comprise positioning a fiber reinforced preform having fibers arranged to provide bidirectional strength. 20. An aircraft comprising: a unitary, structural skin panel that forms an integral, load bearing portion of the aircraft once installed in a fuselage of the aircraft, the skin panel including: at least one metal sheet having a cutout portion and a perimeter portion, said perimeter portion having a plurality of spaced apart perforations formed therein; a first fiber reinforced preform disposed against a first side of the at least one metal sheet to overlay said perimeter portion, the first fiber reinforced preform being comprised of fibers that are generally transparent, the first fiber reinforced preform having dimensions sufficient to cover said cutout portion and to at least substantially cover said perimeter portion; a second fiber reinforced preform disposed against a second side of the at least one metal sheet to thus sandwich said at least one metal sheet between said first and second fiber reinforced preforms; said second fiber reinforced preform being comprised of fibers that are generally transparent, the second fiber reinforced preform having dimensions sufficient to cover said cutout portion and to at least substantially cover said perimeter portion; an optically transparent resin saturating the first and second fiber reinforced preforms, and filling the perforations in the at least one metal sheet, to form said structural skin panel, with portions of said first and second fiber reinforced preforms that overlay said cutout forming a window portion in said structural skin panel; and wherein said first and second fiber reinforced preforms each comprise fibers arranged unidirectionally to provide strength along one axis.
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