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公开(公告)号：US20200070967A1
公开(公告)日：2020-03-05
申请号：US16117924
申请日：2018-08-30
Applicant: Bell Helicopter Textron Inc.
Inventor： John Benjamin Osborne , Ramesh Thiagarajan , Charles Joseph Kilmain
IPC: B64C27/59
Abstract: Embodiments are directed to systems and methods for providing a control link for an aircraft in which the control link comprises an impact-resistant structure with a redundant load path. The control link has an inner structure that is sized to carry the anticipated load of the flight control system and to meet all safety factors. The control link also has an outer structure that is sacrificial and configured to absorb impact damage during operation, thereby protecting the inner structure. The outer structure is also designed to carry the anticipated load of the flight control system on its own, independent of the inner structure, and to meet all safety factors. If the outer structure fails, the inner structure allows for continued safe operation of the flight control system. The space or cavity between the inner and outer structures may be filled with a material, such as a closed-cell foam, to improve the impact resistance of the outer structure.
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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：US20160303818A1
公开(公告)日：2016-10-20
申请号：US15195501
申请日：2016-06-28
Applicant: BELL HELICOPTER TEXTRON INC.
Inventor： Ramesh Thiagarajan , Suvankar Mishra , Mark Chris , William Evans, III , Mike Mikel
CPC classification number: 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
Abstract: 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.
Abstract translation: 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
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.
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Patent Agency Ranking
公开(公告)号：US20140119930A1
公开(公告)日：2014-05-01
申请号：US13663954
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: B29C44/1228 , B29L2031/082 , B29L2031/608 , B32B3/12 , B32B5/20 , B32B7/02 , B32B7/12 , B32B2307/304 , B32B2307/306 , B32B2603/00 , B64F5/40 , Y10T428/192
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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7.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。
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8.发明申请Method of Repairing, Splicing, Joining, Machining, and Stabilizing Honeycomb Core Using Pourable Structural Foam and a Structure Incorporating the Same 有权使用可浇注结构泡沫及其结构的修复，拼接，接合，加工和稳定蜂窝芯的方法公开(公告)号：US20140115853A1
公开(公告)日：2014-05-01
申请号：US13663925
申请日：2012-10-30
Applicant: BELL HELICOPTER TEXTRON INC.
Inventor： Ramesh Thiagarajan , Robert Mark Chris , John R. McCullough , Suvankar Mishra
IPC: B23P6/00
CPC classification number: B23P6/00 , B23P6/002 , B23P2700/00 , B29C44/18 , B29C73/063 , B29C73/10 , B29C2073/264 , B29L2031/082 , B29L2031/608 , Y10T29/49318 , Y10T29/49723 , Y10T29/49725 , Y10T29/49726 , Y10T29/49732 , Y10T29/49734 , Y10T29/49746 , Y10T428/24157
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。
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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：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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