Strain isolation layer assemblies and methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F24J-002/46
H01L-031/042
출원번호
US-0286202
(2011-10-31)
등록번호
US-8957303
(2015-02-17)
발명자
/ 주소
Grip, Robert Erik
Rawdon, Blaine Knight
Crooks, Tab Hunter
Stoia, Michael F.
출원인 / 주소
The Boeing Company
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
In an embodiment of the disclosure, there is provided a strain isolation layer assembly. The assembly has a rigid solar layer; a strain isolation layer having a discontinuous configuration, a vertical rigidity, and a horizontal shear flexibility; and an underlying substrate layer. The strain isolati
In an embodiment of the disclosure, there is provided a strain isolation layer assembly. The assembly has a rigid solar layer; a strain isolation layer having a discontinuous configuration, a vertical rigidity, and a horizontal shear flexibility; and an underlying substrate layer. The strain isolation layer is coupled between the rigid solar layer and the underlying substrate layer to form a strain isolation layer assembly, such that the strain isolation layer isolates the rigid solar layer to reduce one or more strains induced on the rigid solar layer.
대표청구항▼
1. A strain isolation layer assembly comprising: a rigid solar layer;a sandwich structure attached to the rigid solar layer, the sandwich structure comprising a core layer bonded between a first facesheet layer and a second facesheet layer, the first and second facesheet layers each comprised of a t
1. A strain isolation layer assembly comprising: a rigid solar layer;a sandwich structure attached to the rigid solar layer, the sandwich structure comprising a core layer bonded between a first facesheet layer and a second facesheet layer, the first and second facesheet layers each comprised of a thermoplastic material selected from the group consisting of one or more of carbon fiber reinforced polypheylene sulfide (PPS), carbon fiber reinforced polyetheretherketone (PEEK), carbon fiber reinforced polyetherketoneketone (PEKK), and carbon fiber reinforced polyethyleneimine (PEI), and the first facesheet layer continuously mounted above the core layer and bonded to the rigid solar layer, and the second facesheet layer continuously mounted below the core layer;a strain isolation layer bonded below the second facesheet layer, the strain isolation layer having a discontinuous configuration, a vertical rigidity in an out-of-plane direction, and a horizontal shear flexibility in an in-plane direction; and,an underlying substrate layer;wherein the strain isolation layer is coupled between the rigid solar layer and the underlying substrate layer to form a strain isolation layer assembly, such that the strain isolation layer isolates the rigid solar layer to reduce one or more strains induced on the rigid solar layer. 2. The assembly of claim 1 wherein the core layer is comprised of a composite material selected from a group comprising polymethacrylimide (PMI) based structural foam, styrene foam, polyvinyl chloride (PVC) foam, urethane foam, polypropylene foam, polyimide foam, acrylic foam, carbon fiber reinforced plastics, aramid fiber reinforced plastics, polymer matrix composite material, and polyurethanes. 3. The assembly of claim 1 wherein the core layer comprises a thermoplastic honeycomb sandwich core. 4. The assembly of claim 1 wherein the rigid solar layer is selected from a group comprising one or more solar panels, one or more solar cells, a solar panel array comprising one or more solar modules of solar cells, and a solar panel laminated assembly. 5. The assembly of claim 1 wherein the rigid solar layer has a thickness in a range of from about 0.006 inch to about 0.030 inch. 6. The assembly of claim 1 wherein the strain isolation layer is selected from a group comprising a perforated foam strain isolation layer, a column support strain isolation layer, a hinged support strain isolation layer, a foam blade support strain isolation layer, a looped fiber strain isolation layer, and a sliced foam strain isolation layer. 7. The assembly of claim 1 wherein the vertical rigidity of the strain isolation layer stabilizes the rigid solar layer to resist compressive buckling and wrinkling. 8. The assembly of claim 1 wherein the strain isolation layer has a shear modulus of about 0.03 psi (pounds per square inch) to about 1 psi (pounds per square inch). 9. The assembly of claim 1 wherein the horizontal shear flexibility reduces a structural strain and a thermal strain between the underlying substrate layer and the rigid solar layer. 10. The assembly of claim 1 wherein the underlying substrate layer is a structure selected from a group comprising an aircraft, a spacecraft, a satellite, a space station, a rotorcraft, a watercraft, an automobile, a truck, a bus, and an architectural structure. 11. The assembly of claim 1 wherein the one or more strains is selected from a group comprising a mechanical strain selected from a group comprising a compressive strain, a tensile strain and a torsional strain; and a thermal strain comprising a differential thermal expansion strain relating to coefficients of thermal expansion. 12. An aircraft comprising: a strain isolation layer having a discontinuous configuration, a vertical rigidity in an out-of-plane direction, and a horizontal shear flexibility in an in-plane direction; and,the strain isolation layer joining a rigid solar layer attached to a sandwich structure to a surface of a flexible aircraft wing, such that the strain isolation layer isolates the rigid solar layer to reduce one or more strains induced on the rigid solar layer, and,the sandwich structure comprising a core layer bonded between a first facesheet layer and a second facesheet layer via respective bonding element layers, the first and second facesheet layers each comprised of a thermoplastic material selected from the group consisting of one or more of carbon fiber reinforced polypheylene sulfide (PPS), carbon fiber reinforced polyetheretherketone (PEEK), carbon fiber reinforced polyetherketoneketone (PEKK), and carbon fiber reinforced polyethyleneimine (PEI), and the first facesheet layer continuously mounted above the core layer and bonded to the rigid solar layer via another bonding element layer, and the second facesheet layer continuously mounted below the core layer and bonded to the strain isolation layer via another bonding element layer. 13. The aircraft of claim 12 wherein the core layer is comprised of a composite material selected from a group comprising polymethacrylimide (PMI) based structural foam, styrene foam, polyvinyl chloride (PVC) foam, urethane foam, polypropylene foam, polyimide foam, acrylic foam, carbon fiber reinforced plastics, aramid fiber reinforced plastics, polymer matrix composite material, and polyurethanes. 14. The aircraft of claim 12 wherein the rigid solar layer is selected from a group comprising one or more solar panels, one or more solar cells, a solar panel array comprising one or more solar modules of solar cells, and a solar panel laminated array. 15. The aircraft of claim 12 wherein the strain isolation layer is selected from a group comprising a perforated foam strain isolation layer, a column support strain isolation layer, a hinged support strain isolation layer, a foam blade support strain isolation layer, a looped fiber strain isolation layer, and a sliced foam strain isolation layer. 16. The aircraft of claim 12 wherein the strain isolation layer has a shear modulus of about 0.03 psi (pounds per square inch) to about 1 psi (pounds per square inch). 17. The aircraft of claim 12 wherein the one or more strains is selected from a group comprising a mechanical strain selected from a group comprising a compressive strain, a tensile strain and a torsional strain; and a thermal strain comprising a differential thermal expansion strain relating to coefficients of thermal expansion. 18. A method of reducing one or more strains on a rigid solar layer, the method comprising: providing a strain isolation layer having a discontinuous configuration, a vertical rigidity in an out-of-plane direction, and a horizontal shear flexibility in an in-plane direction; and,attaching the strain isolation layer between a rigid solar layer attached to a sandwich structure and an underlying substrate layer, such that the strain isolation layer isolates the rigid solar layer to reduce one or more strains induced on the rigid solar layer, and,the sandwich structure comprising a core layer bonded between a first facesheet layer and a second facesheet layer, the first and second facesheet layers each comprised of a thermoplastic material selected from the group consisting of one or more of carbon fiber reinforced polypheylene sulfide (PPS), carbon fiber reinforced polyetheretherketone (PEEK), carbon fiber reinforced polyetherketoneketone (PEKK), and carbon fiber reinforced polyethyleneimine (PEI), and the first facesheet layer continuously mounted above the core layer and bonded to the rigid solar layer, and the second facesheet layer continuously mounted below the core layer and bonded to the strain isolation layer. 19. The method of claim 18 wherein the core layer is comprised of a composite material selected from a group comprising polymethacrylimide (PMI) based structural foam, styrene foam, polyvinyl chloride (PVC) foam, urethane foam, polypropylene foam, polyimide foam, acrylic foam, carbon fiber reinforced plastics, aramid fiber reinforced plastics, polymer matrix composite material, and polyurethanes. 20. The method of claim 18 wherein the rigid solar layer is selected from a group comprising one or more solar panels, one or more solar cells, a solar panel array comprising one or more solar modules of solar cells, and a solar panel laminated array. 21. The method of claim 18 wherein the strain isolation layer is selected from a group comprising a perforated foam strain isolation layer, a column support strain isolation layer, a hinged support strain isolation layer, a foam blade support strain isolation layer, a looped fiber strain isolation layer, and a sliced foam strain isolation layer. 22. The method of claim 18 wherein the strain isolation layer has a shear modulus of about 0.03 psi (pounds per square inch) to about 1 psi (pounds per square inch). 23. The method of claim 18 wherein the one or more strains is selected from a group comprising a mechanical strain selected from a group comprising a compressive strain, a tensile strain and a torsional strain; and a thermal strain comprising a differential thermal expansion strain relating to coefficients of thermal expansion.
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