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公开(公告)号：US20180141246A1
公开(公告)日：2018-05-24
申请号：US15872706
申请日：2018-01-16
IPC分类号： B29C44/04 , B32B27/12 , B29C44/12 , B29C70/86 , B32B3/04 , B32B3/12 , B32B3/26 , B32B5/18 , B32B27/06 , B32B7/12 , B32B7/02 , B32B5/26 , B32B5/24 , B32B27/08
CPC分类号： B29C44/0415 , B29C44/128 , B29C70/865 , B32B3/04 , B32B3/12 , B32B3/263 , B32B5/18 , B32B5/245 , B32B5/26 , B32B7/02 , B32B7/12 , B32B27/065 , B32B27/08 , B32B27/12 , B32B2262/101 , B32B2262/106 , B32B2307/542 , B32B2605/18 , Y02T50/43 , Y10T428/24149 , Y10T428/249953
摘要： A composite structure includes a first face sheet, a second face sheet, and a foam member located between the first face sheet and the second face sheet. The foam member has a molded contour, the mold contour being configured to provide tooling surface for at least one of the first face sheet and the second face sheet prior to curing of the composite structure. A method of making the foam member includes creating a mold tool having an interior surface which resembles the desired outer contour of the foam member. A mixture is poured into a pour opening in the mold tool. The mixture is allowed to polymerize into a foam as the foam expands and distributes within the mold tool. Vent openings in the mold tool are selectively tailored to control the density of the foam member. The foam member is cured in the mold tool.
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公开(公告)号：US20160089844A1
公开(公告)日：2016-03-31
申请号：US14496271
申请日：2014-09-25
发明人： Suvankar Mishra , Jesse Wrabel , John R. McCullough , Randall Willnow , Carl May
CPC分类号： B29C73/10 , B29C44/1214 , B29C44/1276 , B29C44/128 , B29C44/18 , B29C66/02241 , B29C73/02 , B29C73/04 , B29C73/06 , B29C2073/264 , B29L2031/082 , B29L2031/3076 , B29L2031/3085 , B29L2031/3088 , B29L2031/608 , B64F5/40
摘要： A method of repairing a core stiffened structure can include removing a damaged portion of the core stiffened structure; creating a cutout in a portion of a repair core member; fitting the repair core member onto an existing core member such that the cutout mates with a portion of the existing core member; bonding the repair core member to the existing core member; and placing a skin patch over the repair core member.
摘要翻译： 修复芯加固结构的方法可以包括去除芯加固结构的损坏部分; 在修复核心部件的一部分中形成切口; 将修复芯构件装配到现有的芯构件上，使得切口与现有芯构件的一部分配合; 将修复芯构件粘合到现有的芯构件上; 并将皮肤贴片放置在修复芯部件上。
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公开(公告)号：US11027465B2
公开(公告)日：2021-06-08
申请号：US16141127
申请日：2018-09-25
发明人： James A. Cordell , Suvankar Mishra , Andrew Paul Haldeman , Jesse J. Wrabel , Dalton T. Hampton
摘要： A method is provided in one example embodiment and may include positioning at least one nozzle within a hollow portion of a rotor blade at a distance associated with a span of the rotor blade and providing, via the at least one nozzle, a liquid foam mixture in the hollow portion, wherein the liquid foam expands and becomes a solid foam material that fills the hollow portion of the rotor blade. Another method is provided in another example embodiment and may include providing a plurality of openings for a rotor blade that are positioned proximate to a hollow portion of the rotor blade and providing a liquid foam mixture in the hollow portion of the rotor blade through at least one opening of the rotor blade, wherein the liquid foam mixture expands and becomes a solid foam material that fills the hollow portion of the rotor blade.
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公开(公告)号：US10899084B2
公开(公告)日：2021-01-26
申请号：US16036228
申请日：2018-07-16
摘要： A method is provided in one example embodiment and may include forming a ply stack comprising a plurality of uncured composite plies, wherein one or more uncured composite ply of the plurality of uncured composite plies comprises a plurality of perforations that extend, at least partially, through a thickness of the one or more uncured composite ply; and compacting the ply stack to form a composite structure. The plurality of perforations may provide paths for volatiles to be removed through the thickness of the one or more uncured composite ply of the ply stack during the compacting. Volatiles may also be removed through edges of the ply stack during the compacting. In some instances, all uncured composite plies of the ply stack may include a plurality of perforations that extend, at least partially, through the thickness of each uncured composite ply.
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公开(公告)号：US20160303818A1
公开(公告)日：2016-10-20
申请号：US15195501
申请日：2016-06-28
CPC分类号： B32B3/08 , B29C44/025 , B29C44/0415 , B29C44/086 , B29C44/10 , B29C44/588 , B29C44/60 , B29K2075/00 , B29K2105/04 , B29L2031/3076 , B32B1/00 , B32B5/18 , B32B5/245 , B32B5/26 , B32B5/28 , B32B7/06 , B32B7/12 , B32B2250/03 , B32B2250/40 , B32B2260/023 , B32B2260/046 , B32B2266/0278 , B32B2305/022 , B32B2305/076 , B32B2305/10 , B32B2603/00 , B32B2605/18 , B64C1/068 , B64C3/20 , B64C3/24 , B64C5/10 , B64C2001/0072 , B64C2027/4736 , Y02T50/43 , Y10T156/10 , Y10T428/233 , Y10T428/249953 , Y10T428/249982
摘要： A structure includes a skin and a foam member. The foam member has a molded contour, the mold contour being configured to provide tooled surface for the skin. When the skin is a composite skin, the foam member provides support for the skin so that the skin can be cured under heat and pressure. A method of making the foam member for a foam stiffened structure includes creating a mold having an interior cavity which resembles a desired shape the foam member. A subsequent step involves introducing a foam mixture into the mold. Next, the foam mixture is allowed to polymerize so as to expand and distribute within the cavity of the mold. The method further includes selectively controlling a density of the foam member in the mold. The foam member is at least partially cured. The foam member is assembled with a skin to produce the foam stiffened structure.
摘要翻译： 结构包括皮肤和泡沫构件。 泡沫构件具有模制轮廓，模具轮廓被配置成为皮肤提供工具表面。 当皮肤是复合皮肤时，泡沫构件为皮肤提供支撑，使得皮肤可以在热和压力下固化。 制造用于泡沫硬化结构的泡沫构件的方法包括产生具有类似于所需形状的泡沫构件的内部空腔的模具。 随后的步骤包括将泡沫混合物引入模具中。 接下来，允许泡沫混合物聚合，以便在模具的空腔内膨胀和分布。 该方法还包括选择性地控制模具中泡沫构件的密度。 泡沫构件至少部分固化。 泡沫构件与皮肤组装以产生泡沫硬化结构。
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公开(公告)号：US20140120298A1
公开(公告)日：2014-05-01
申请号：US13664010
申请日：2012-10-30
CPC分类号： B32B3/12 , B29C73/06 , B29C73/10 , B29C2073/264 , B29L2031/082 , B29L2031/608 , Y10T428/24008 , Y10T428/24157 , Y10T428/249953
摘要： A method of the present disclosure includes of repairing a core stiffened structure with structural foam. Another method includes splicing core members together using structural foam. Another method includes joining a core member to a structure using structural foam. Another method includes using structural foam to stabilize a core member during a machining process. Another method includes stabilizing a core member with structural foam to prevent the core member from crushing in autoclave pressure. The present disclosure further includes a core stiffened structure have a core member with structural foam therein.
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公开(公告)号：US20140119930A1
公开(公告)日：2014-05-01
申请号：US13663954
申请日：2012-10-30
CPC分类号： B29C44/1228 , B29L2031/082 , B29L2031/608 , B32B3/12 , B32B5/20 , B32B7/02 , B32B7/12 , B32B2307/304 , B32B2307/306 , B32B2603/00 , B64F5/40 , Y10T428/192
摘要： A method of the present disclosure includes of repairing a core stiffened structure with structural foam. Another method includes splicing core members together using structural foam. Another method includes joining a core member to a structure using structural foam. Another method includes using structural foam to stabilize a core member during a machining process. Another method includes stabilizing a core member with structural foam to prevent the core member from crushing in autoclave pressure. The present disclosure further includes a core stiffened structure have a core member with structural foam therein.
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公开(公告)号：US10317323B2
公开(公告)日：2019-06-11
申请号：US15782677
申请日：2017-10-12
摘要： Systems and methods of operating a test apparatus to simulate testing a production aircraft component include assembling a test assembly having a test specimen and a wear protection material disposed on opposing sides of the test specimen, an outer plate disposed on each side of the test specimen in contact with the wear protection material, and a bolt disposed through the test specimen and the outer plates and applying a preload against the wear protection material. The test assembly is secured in a test machine, and the test machine is operated to provide a predetermined displacement of the test specimen relative to the outer plates at a predetermined frequency at a determined frequency of displacement cycles. The preload, the predetermined displacement, and the predetermined frequency of displacement cycles are determined through finite element analysis of an analytical model of the production component.
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公开(公告)号：US10301032B2
公开(公告)日：2019-05-28
申请号：US15444085
申请日：2017-02-27
发明人： Timothy Brian Carr , Suvankar Mishra , Michael Stephen Deslatte , Michael Douglas Ishmael , Ronald James Turner
摘要： An aircraft fuel system includes one or more fuel cells adapted to contain fuel, a fuel cell receiving assembly having an inner surface adapted to receive the one or more fuel cells and a fuel cell cushion disposed between the inner surface of the fuel cell receiving assembly and the one or more fuel cells. The fuel cell cushion is machined from a foam substrate to form a shaped foam substrate that is substantially covered with a cushion coating. The cushion coating is sprayable onto the shaped foam substrate such that the fuel cell cushion is substantially nonabsorbent of fuel. The fuel cell cushion is interposable between the inner surface of the fuel cell receiving assembly and the one or more fuel cells to cushion the one or more fuel cells from damage.
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公开(公告)号：US20190113426A1
公开(公告)日：2019-04-18
申请号：US15782677
申请日：2017-10-12
IPC分类号： G01N3/08
摘要： Systems and methods of operating a test apparatus to simulate testing a production aircraft component include assembling a test assembly having a test specimen and a wear protection material disposed on opposing sides of the test specimen, an outer plate disposed on each side of the test specimen in contact with the wear protection material, and a bolt disposed through the test specimen and the outer plates and applying a preload against the wear protection material. The test assembly is secured in a test machine, and the test machine is operated to provide a predetermined displacement of the test specimen relative to the outer plates at a predetermined frequency at a determined frequency of displacement cycles. The preload, the predetermined displacement, and the predetermined frequency of displacement cycles are determined through finite element analysis of an analytical model of the production component.
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