초록 ▼

An aircraft body structure is disclosed and has a skeleton frame including a plurality of interconnected frame elements. A skin layer is affixed to at least a portion of the frame elements. The skin layer has an exterior surface and an opposite interior surface. A composite reinforcing layer is affi

An aircraft body structure is disclosed and has a skeleton frame including a plurality of interconnected frame elements. A skin layer is affixed to at least a portion of the frame elements. The skin layer has an exterior surface and an opposite interior surface. A composite reinforcing layer is affixed to at least a substantial portion of the interior surface of the skin layer. The composite reinforcing layer has a reinforcing material combined with a non-flammable polymer foam material in a variety of different manners.

대표청구항 ▼

1. An aircraft body structure comprising: a skeleton frame having a plurality of interconnected frame elements;a skin layer affixed to at least a portion of the frame elements, the skin layer having an exterior surface and an opposite interior surface; anda composite, non-laminate reinforcing layer

1. An aircraft body structure comprising: a skeleton frame having a plurality of interconnected frame elements;a skin layer affixed to at least a portion of the frame elements, the skin layer having an exterior surface and an opposite interior surface; anda composite, non-laminate reinforcing layer directly bonded to at least a substantial portion of the interior surface of the skin layer, the composite, non-laminate reinforcing layer including a reinforcing material embedded in a polymer foam material, the reinforcing material comprising at least one mesh grid sheet fabricated from a material selected from the group consisting of, poly(p-phenylene terephthalamide) aramid fiber, poly(m-phenylene terephthalamide) aramid fiber, polyaramid fiber, polyarylate fiber, poly(phenylene sulfide) fiber, and mixtures thereof.2. An aircraft body structure as defined in claim 1, wherein the skeleton frame elements include at least a plurality of interconnected bulkheads and wherein the skin layer is affixed to an exterior side of the bulkheads.3. An aircraft body structure as defined in claim 1, wherein the polymer foam material comprises a closed cell foam material.4. An aircraft body structure as defined in claim 1, wherein the polymer foam material comprises an insulating material.5. An aircraft body structure as defined in claim 1, wherein the polymer foam material comprises polyisocyanurate foam.6. An aircraft body structure as defined in claim 1, wherein the polymer foam material comprises polyurethane foam.7. An aircraft body structure as defined in claim 1, wherein the at least one sheet is a mesh grid sheet of aramid fiber material.8. An aircraft body structure as defined in claim 1, wherein the at least one sheet is a mesh grid sheet having a plurality of interconnected linear fibers.9. An aircraft body structure as defined in claim 1, wherein the at least one sheet is a mesh grid having a plurality of interconnected curvilinear fibers.10. An aircraft body structure as defined in claim 1, wherein the reinforcing material further comprises a plurality of discrete strengthening fibers interspersed and embedded within a layer of the polymer foam material.11. An aircraft body structure as defined in claim 10, wherein the discrete fibers are silicone nitride fibers.12. An aircraft body structure as defined in claim 1, wherein the composite reinforcing layer is also affixed to a portion of the frame elements.13. An aircraft body structure comprising: a skeleton frame having a plurality of interconnected frame elements;a skin layer affixed to at least a portion of the frame elements, the skin layer having an exterior surface and an opposite interior surface; anda composite, non-laminate reinforcing layer directly affixed to at least a portion of the interior surface of the skin layer, the composite, non-laminate reinforcing layer including a mesh grid sheet of reinforcing material within a polymer foam insulating and closed-cell material, the mesh grid sheet comprising a fiber material selected from the group consisting of poly(p-phenylene terephthalamide) aramid fiber, poly(m-phenylene terephthalamide) aramid fiber, polyaramid fiber, polyarylate fiber, poly(phenylene sulfide) fiber, and mixtures thereof.