EP2909009A4 - An integrated curved structure and winglet strength enhancement - Google Patents

An integrated curved structure and winglet strength enhancement

Info

Publication number
EP2909009A4
EP2909009A4 EP12887291.8A EP12887291A EP2909009A4 EP 2909009 A4 EP2909009 A4 EP 2909009A4 EP 12887291 A EP12887291 A EP 12887291A EP 2909009 A4 EP2909009 A4 EP 2909009A4
Authority
EP
European Patent Office
Prior art keywords
winglet
curved structure
strength enhancement
integrated curved
integrated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12887291.8A
Other languages
German (de)
French (fr)
Other versions
EP2909009A1 (en
Inventor
Pontus Nordin
Anders Rydbom
Tomas Vångell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saab AB
Original Assignee
Saab AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saab AB filed Critical Saab AB
Publication of EP2909009A1 publication Critical patent/EP2909009A1/en
Publication of EP2909009A4 publication Critical patent/EP2909009A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
    • B29C70/14—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat oriented
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/081—Combinations of fibres of continuous or substantial length and short fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/302—Details of the edges of fibre composites, e.g. edge finishing or means to avoid delamination
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/12—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C23/00—Influencing air flow over aircraft surfaces, not otherwise provided for
    • B64C23/06—Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices
    • B64C23/065—Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices at the wing tips
    • B64C23/069—Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices at the wing tips using one or more wing tip airfoil devices, e.g. winglets, splines, wing tip fences or raked wingtips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3076—Aircrafts
    • B29L2031/3085—Wings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B32B2260/023—Two or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/18—Aircraft
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/10—Drag reduction
EP12887291.8A 2012-10-22 2012-10-22 An integrated curved structure and winglet strength enhancement Withdrawn EP2909009A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2012/051126 WO2014065718A1 (en) 2012-10-22 2012-10-22 An integrated curved structure and winglet strength enhancement

Publications (2)

Publication Number Publication Date
EP2909009A1 EP2909009A1 (en) 2015-08-26
EP2909009A4 true EP2909009A4 (en) 2016-06-01

Family

ID=50544966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12887291.8A Withdrawn EP2909009A4 (en) 2012-10-22 2012-10-22 An integrated curved structure and winglet strength enhancement

Country Status (2)

Country Link
EP (1) EP2909009A4 (en)
WO (1) WO2014065718A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9738375B2 (en) 2013-12-05 2017-08-22 The Boeing Company One-piece composite bifurcated winglet
GB2522245A (en) * 2014-01-20 2015-07-22 Airbus Operations Ltd A curved winglet
GB201421827D0 (en) * 2014-12-09 2015-01-21 Short Brothers Plc Fibre-reinforced components including nanostructures
US20190016064A1 (en) * 2015-09-17 2019-01-17 Rolls-Royce Deutschland Ltd & Co Kg Structural element of an aircraft part and method for manufacturing a structural element
GB2551311A (en) * 2016-05-24 2017-12-20 Airbus Operations Ltd Winglet
GB2559771A (en) * 2017-02-17 2018-08-22 Airbus Operations Ltd A rib arrangement in a wing tip device
CN107521124A (en) * 2017-07-31 2017-12-29 江苏恒神股份有限公司 Carbon fiber dual platen reinforced structure part and its manufacture method
GB2568229B (en) 2017-10-19 2020-01-29 Airbus Operations Ltd An aircraft assembly including a wingtip device
US11167836B2 (en) 2018-06-21 2021-11-09 Sierra Nevada Corporation Devices and methods to attach composite core to a surrounding structure
CN109684679B (en) * 2018-12-04 2023-05-26 中国航空工业集团公司西安飞机设计研究所 Parameter design method for circular arch reinforcement frame bearing antisymmetric concentrated load

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525912A1 (en) * 1991-08-02 1993-02-03 The Boeing Company Wing/winglet configurations and methods for aircraft
WO2010144010A1 (en) * 2009-06-11 2010-12-16 Saab Ab A structural longitudinal composite joint for aircraft structure
WO2010144009A1 (en) * 2009-06-11 2010-12-16 Saab Ab An aircraft structure with structural parts connected by nanostructure and a method for making said aircraft structure
WO2011087411A1 (en) * 2010-01-14 2011-07-21 Saab Ab An aerodynamic surface with improved properties
WO2011087413A1 (en) * 2010-01-14 2011-07-21 Saab Ab Article with de-icing/anti-icing function
WO2011087414A1 (en) * 2010-01-14 2011-07-21 Saab Ab A wind turbine blade having an outer surface with improved properties
WO2012036602A1 (en) * 2010-09-15 2012-03-22 Saab Ab Plasma-enhanced active laminar flow actuator system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4560603A (en) * 1983-10-27 1985-12-24 Ltv Aerospace And Defense Company Composite matrix with oriented whiskers
DE69431909T2 (en) * 1993-04-30 2003-11-06 Foster Miller Inc A REINFORCED CONNECTING ELEMENT OF COMPOSITE STRUCTURES AND METHOD FOR CONNECTING COMPONENT PARTS
US5832594A (en) * 1996-05-31 1998-11-10 The Boeing Company Tooling for inserting Z-pins
US6743504B1 (en) * 2001-03-01 2004-06-01 Rohr, Inc. Co-cured composite structures and method of making them
GB0213161D0 (en) * 2002-06-07 2002-07-17 Short Brothers Plc A fibre reinforced composite component
US7537825B1 (en) * 2005-03-25 2009-05-26 Massachusetts Institute Of Technology Nano-engineered material architectures: ultra-tough hybrid nanocomposite system
US7753313B1 (en) * 2006-09-19 2010-07-13 The Boeing Company Composite wing slat for aircraft
JP5590598B2 (en) * 2007-04-24 2014-09-17 独立行政法人産業技術総合研究所 Carbon nanotube-containing resin composite and method for producing the same
ITTO20070507A1 (en) * 2007-07-11 2009-01-12 Alenia Aeronautica Spa PROCESS OF MANUFACTURING OF A STRUCTURE OF A MONOLITHIC WING WITH AN INTEGRAL PROFILE
EP2189277A1 (en) * 2008-11-19 2010-05-26 BAE Systems PLC Fibre reinforced composite

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525912A1 (en) * 1991-08-02 1993-02-03 The Boeing Company Wing/winglet configurations and methods for aircraft
WO2010144010A1 (en) * 2009-06-11 2010-12-16 Saab Ab A structural longitudinal composite joint for aircraft structure
WO2010144009A1 (en) * 2009-06-11 2010-12-16 Saab Ab An aircraft structure with structural parts connected by nanostructure and a method for making said aircraft structure
WO2011087411A1 (en) * 2010-01-14 2011-07-21 Saab Ab An aerodynamic surface with improved properties
WO2011087413A1 (en) * 2010-01-14 2011-07-21 Saab Ab Article with de-icing/anti-icing function
WO2011087414A1 (en) * 2010-01-14 2011-07-21 Saab Ab A wind turbine blade having an outer surface with improved properties
WO2012036602A1 (en) * 2010-09-15 2012-03-22 Saab Ab Plasma-enhanced active laminar flow actuator system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014065718A1 *

Also Published As

Publication number Publication date
WO2014065718A1 (en) 2014-05-01
EP2909009A1 (en) 2015-08-26

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