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公开(公告)号：US09333684B2
公开(公告)日：2016-05-10
申请号：US13663978
申请日：2012-10-30
Applicant: Bell Helicopter Textron Inc.
Inventor： Ramesh Thiagarajan , Robert Mark Chris , John R. McCullough , Suvankar Mishra
CPC classification number: B29C44/186 , B29C44/5627 , B29L2031/082 , B29L2031/608 , B32B3/12 , B32B5/18 , B32B5/245 , B32B2260/021 , B32B2260/046 , B32B2605/18 , Y10T428/24157 , Y10T428/24612 , Y10T428/249953
Abstract: 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：US20140120305A1
公开(公告)日：2014-05-01
申请号：US13663978
申请日：2012-10-30
Applicant: BELL HELICOPTER TEXTRON, INC.
Inventor： Ramesh Thiagarajan , Robert Mark Chris , John R. McCullough , Suvankar Mishra
CPC classification number: B29C44/186 , B29C44/5627 , B29L2031/082 , B29L2031/608 , B32B3/12 , B32B5/18 , B32B5/245 , B32B2260/021 , B32B2260/046 , B32B2605/18 , Y10T428/24157 , Y10T428/24612 , Y10T428/249953
Abstract: 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
Applicant: Bell Helicopter Textron Inc.
Inventor： Andrew Paul Haldeman , Ramesh Thiagarajan , Suvankar Mishra
Abstract: 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
Applicant: Bell Helicopter Textron Inc.
Inventor： Timothy Brian Carr , Suvankar Mishra , Michael Stephen Deslatte , Michael Douglas Ishmael , Ronald James Turner
Abstract: 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
Applicant: Bell Helicopter Textron Inc.
Inventor： Andrew Paul Haldeman , Ramesh Thiagarajan , Suvankar Mishra
IPC: G01N3/08
Abstract: 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：US09597826B2
公开(公告)日：2017-03-21
申请号：US13664046
申请日：2012-10-30
Applicant: Bell Helicopter Textron Inc.
Inventor： Suvankar Mishra , Carl May , Robert Mark Chris
CPC classification number: B29C44/186 , B29C44/1276 , B29C70/44 , B29L2031/082 , B29L2031/608 , B32B3/12 , B32B5/20
Abstract: 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：US10800129B2
公开(公告)日：2020-10-13
申请号：US15414181
申请日：2017-01-24
Applicant: Bell Helicopter Textron Inc.
Inventor： Suvankar Mishra , Robert Mark Chris , Michael D. Ishmael , Ronald J. Turner
IPC: B32B3/12 , B32B37/06 , B32B41/00 , B32B27/38 , B32B27/28 , B32B7/04 , B32B5/02 , B32B3/06 , B32B27/16 , B32B7/08 , B32B7/02 , B32B27/12 , B32B3/20
Abstract: In accordance with one embodiment of the present disclosure, a method for manufacturing a honeycomb core sandwich panel includes placing a thermoset facesheet in contact with a thermoplastic honeycomb core without using a separate adhesive and attaching the thermoset facesheet to the thermoplastic honeycomb core by using a curing profile comprising a temperature that is lower than a gel point temperature of the thermoset facesheet and higher than a softening point temperature of the thermoplastic honeycomb core.
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公开(公告)号：US20200094450A1
公开(公告)日：2020-03-26
申请号：US16141127
申请日：2018-09-25
Applicant: Bell Helicopter Textron Inc.
Inventor： James A. Cordell , Suvankar Mishra , Andrew Paul Haldeman , Jesse J. Wrabel , Dalton T. Hampton
Abstract: 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：US09550334B2
公开(公告)日：2017-01-24
申请号：US14496271
申请日：2014-09-25
Applicant: Bell Helicopter Textron Inc.
Inventor： Suvankar Mishra , Jesse Wrabel , John R. McCullough , Randall Willnow , Carl May
IPC: B29C44/12 , B29C73/02 , B29C73/04 , B29C73/06 , B29C73/10 , B29C65/00 , B29C44/18 , B64F5/00 , B29L31/30 , B29L31/08 , B29L31/60 , B29C73/26
CPC classification number: 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
Abstract: 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.
Abstract translation: 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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20.发明授权Method of repairing, splicing, joining, machining, and stabilizing honeycomb core using pourable structural foam and a structure incorporating the same 有权使用可流动的结构泡沫体进行修复，拼接，接合，加工和稳定蜂窝芯的方法以及结合其的结构
公开(公告)号：US09149999B2
公开(公告)日：2015-10-06
申请号：US13664010
申请日：2012-10-30
Applicant: Bell Helicopter Textron Inc.
Inventor： Ramesh Thiagarajan , Theodore W. Ingram, III , John R. McCullough , Suvankar Mishra , Carl May
CPC classification number: B32B3/12 , B29C73/06 , B29C73/10 , B29C2073/264 , B29L2031/082 , B29L2031/608 , Y10T428/24008 , Y10T428/24157 , Y10T428/249953
Abstract: 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.
Abstract translation: 本公开的方法包括用结构泡沫修复芯加固结构。 另一种方法包括使用结构泡沫将芯部件拼接在一起。 另一种方法包括使用结构泡沫将芯构件连接到结构上。 另一种方法包括在加工过程中使用结构泡沫来稳定芯构件。 另一种方法包括用结构泡沫稳定芯部件以防止芯件在高压釜压力下破碎。 本公开还包括具有在其中具有结构泡沫的芯构件的芯加强结构。
