WO2010012913A1 - Panneau de protection et train d ' atterrissage le comportant - Google Patents
Panneau de protection et train d ' atterrissage le comportant Download PDFInfo
- Publication number
- WO2010012913A1 WO2010012913A1 PCT/FR2009/000966 FR2009000966W WO2010012913A1 WO 2010012913 A1 WO2010012913 A1 WO 2010012913A1 FR 2009000966 W FR2009000966 W FR 2009000966W WO 2010012913 A1 WO2010012913 A1 WO 2010012913A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- deformable parts
- panel
- protection panel
- landing gear
- deformable
- Prior art date
Links
- 239000004918 carbon fiber reinforced polymer Substances 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/08—Undercarriages non-fixed, e.g. jettisonable
- B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
- B64C25/16—Fairings movable in conjunction with undercarriage elements
Definitions
- the present invention relates to a protection panel and a landing gear module comprising it. It aims to reduce the weight of a protective panel and improve the impact resistance, including tire impacts on a boat panel. It applies thus, in particular, to the aeronautical field.
- the boat panel positioned at the rear of a landing gear and protecting the fuselage from debris and pebbles raised by the rolling of the tires during takeoff or landing, is made of aluminum and therefore has a coefficient of elongation at break, that is to say the rate of the maximum elongation before rupture, of 9%.
- the present invention aims to remedy these disadvantages.
- the present invention aims at a protective panel for a vehicle, characterized in that its external surface comprises at least one composite material and in that said protective panel is mounted, by means of deformable parts, on a support related to the structure of the vehicle, the deformation rate of said deformable parts being adapted to the coefficient of elongation of the outer surface so that said deformable pieces deform before the outer surface is broken. Thanks to these provisions, we benefit from the lightness of the composite material.
- the deformation of the deformable parts makes it possible, with respect to the rigid supports of the aluminum panels of the prior art, to extension of the deformation of the outer surface over a large area, which, despite the low coefficient of elongation at break (typically less than 2%), improves the impact resistance.
- the low coefficient of elongation at break is thus compensated by the incorporation of deformable parts.
- the deformable parts thus form "fusible" parts during the impact.
- said deformable pieces take the form of clips.
- said composite material is CFRP (acronym for "carbon fiber reinforced plastic” for carbon fiber reinforced plastic).
- said support is rigid.
- the deformable parts are taken up on several stiffening parts of the support. These stiffening pieces are called “smooth” or “frames”.
- the deformable parts are perpendicular to the outer surface of the panel and adapted to flambe under the effect of impacts.
- the present invention relates to a landing gear module characterized in that it comprises a landing gear and a protective panel object of the present invention, as briefly described above.
- the present invention relates to an aircraft, characterized in that it comprises at least one landing gear module as briefly described above.
- the advantages, aims and special features of this module being similar to those of the panel object of the present invention, as succinctly described above, they are not recalled here.
- FIG. 1 shows, schematically, a particular embodiment of the landing gear module object of the present invention
- FIG. 2 shows schematically and in section, a panel deformation obtained by the implementation of the present invention
- FIG. 3 shows schematically and in section, a particular embodiment of the protection panel object of the present invention
- FIG. 4 represents, schematically and partially, in perspective, a particular embodiment of the protection panel which is the subject of the present invention.
- FIG. 1 shows a landing gear module 105 comprising a landing gear 110 and a protection panel 115, also called a "barge board".
- the front of the aircraft being on the left of Figure 1, it is understood that during the roll, takeoff or landing, the tires 120 of the train 110 can lift debris or pebbles and project them, to the back to the fuselage of the aircraft.
- the protection panel 115 is intended to protect the fuselage from these impacts.
- the outer surface 140 of the protection panel 115 is essentially made of a composite material, for example a CFRP obtained by an automatic fiber placement machine in which the layer-to-layer folds are placed using a machine that puts them in a strip.
- this panel has deformable parts 125 between the outer surface 130, or "skin" of the panel 115 and a rigid support 135 forming a structure of the panel and connected to the structure of the aircraft.
- the rigid support 135 has rigid internal frames 145.
- the deformable parts 125 are perpendicular to the outer surface 140 of the protection panel 115 and are adapted to flame under the effect of impacts.
- the deformable parts have a rate of deformation (in deformation length per unit of applied force) adapted to the coefficient of elongation of rupture of the outer surface so that several deformable parts deform before the outer surface is broken.
- the breaking force of the outer surface corresponds to a multiple of the force which is sufficient for the deformation of a deformable part, the multiple considered being all the higher as the coefficient of elongation of rupture of the outer surface is weak. For example, when the coefficient of elongation of rupture is halved, this multiple is doubled.
- the deformable parts 125 thus allow an extension of the panel area which is deformed in case of impact, compared to the rigid structures of the metal bar panels of known type. So that these deformable parts 125 can be deformed in the thickness of the protective panel 115, it is thicker than traditional aluminum panels panels.
- the low elongation at break of the composite material of the skin less than 2% in the case of the CFRP, is compensated by a significant thickening of the protective panel 115 allowing the deformation of the deformable parts 125.
- FIG. 2 represents deformation curves of the outer surface of the protective panel, for an aluminum skin, curve 205, and for a panel object of the present invention, curve 210.
- the curve 205 represents an extension of the deformation limited substantially to the length of a gap between two frames 215, whereas
- curve 210 represents an extension of the deformation over three intervals between frames 215.
- FIG. 4 illustrates a respective type of arrangement of the external surface 140, the deformable parts 125 and the frames 145.
- the parts deformable 125 here take the form of clips perpendicular to the outer surface 140.
- the frames 145 are adapted to support smooth (not shown).
- the clips 125 taking up several stiffening pieces (frames 145 or smooth) of the panel 115, form fuse pieces during impact.
- the clips 125 are weakly resistant to compressive loads perpendicular to the outer surface 140 and so blaze under impact. As exposed with reference to FIG. 2, this makes it possible to stress the skin in out-of-plane flexion over three inter-frames or inter-smooth and thus to greatly reduce the rate of elongation of the skin and, consequently, its risk of rupture. .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Laminated Bodies (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09802561.2A EP2307270B1 (fr) | 2008-07-31 | 2009-07-31 | Panneau de protection et train d'atterrissage le comportant |
US13/056,423 US9090338B2 (en) | 2008-07-31 | 2009-07-31 | Protection panel and landing gear module comprising it |
RU2011107296/11A RU2517026C2 (ru) | 2008-07-31 | 2009-07-31 | Защитная панель и содержащее ее шасси |
CA2732551A CA2732551C (fr) | 2008-07-31 | 2009-07-31 | Panneau de protection et train d'atterrissage le comportant |
CN200980130619.1A CN102112370B (zh) | 2008-07-31 | 2009-07-31 | 保护板和包括该保护板的起落架 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0855310A FR2934562B1 (fr) | 2008-07-31 | 2008-07-31 | Panneau de protection et module de train d'atterissage le comportant. |
FR0855310 | 2008-07-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010012913A1 true WO2010012913A1 (fr) | 2010-02-04 |
Family
ID=40404222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2009/000966 WO2010012913A1 (fr) | 2008-07-31 | 2009-07-31 | Panneau de protection et train d ' atterrissage le comportant |
Country Status (7)
Country | Link |
---|---|
US (1) | US9090338B2 (fr) |
EP (1) | EP2307270B1 (fr) |
CN (1) | CN102112370B (fr) |
CA (1) | CA2732551C (fr) |
FR (1) | FR2934562B1 (fr) |
RU (1) | RU2517026C2 (fr) |
WO (1) | WO2010012913A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2551188A1 (fr) * | 2011-07-27 | 2013-01-30 | Airbus Operations S.A.S. | Panneau raidi pour aéronef, comprenant des raidisseurs à ames entaillées |
WO2013092581A1 (fr) | 2011-12-20 | 2013-06-27 | Compagnie Generale Des Etablissements Michelin | Sommet pour pneumatique d'avion |
WO2013092578A1 (fr) | 2011-12-20 | 2013-06-27 | Compagnie Generale Des Etablissements Michelin | Sommet pour pneumatique d'avion |
WO2013092585A1 (fr) | 2011-12-20 | 2013-06-27 | Compagnie Generale Des Etablissements Michelin | Sommet pour pneumatique d'avion |
WO2016055504A1 (fr) | 2014-10-09 | 2016-04-14 | Compagnie Generale Des Etablissements Michelin | Bande de roulement pour pneumatique d'avion |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010018932B4 (de) * | 2010-04-30 | 2013-06-13 | Airbus Operations Gmbh | Umfangsversteifung für einen Luftfahrzeugrumpf |
CN105584628B (zh) * | 2015-10-27 | 2021-03-30 | 成都飞机工业(集团)有限责任公司 | 一种护板起落架联动收放装置 |
Citations (9)
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---|---|---|---|---|
GB2022212A (en) | 1978-05-16 | 1979-12-12 | Renault | Bumper device for a motor vehicle |
US4460205A (en) | 1981-12-21 | 1984-07-17 | Concept Anaylsis Corporation | Energy absorbing vehicle bumper assembly |
EP0354403A2 (fr) * | 1988-08-11 | 1990-02-14 | Deutsche Aerospace Airbus Gesellschaft mit beschränkter Haftung | Dispositif pour arrêter une charge |
GB2346117A (en) | 1999-02-01 | 2000-08-02 | Ford Motor Co | Energy absorbing pocket member |
EP1464915A1 (fr) * | 2003-04-01 | 2004-10-06 | GEKE Technologie GmbH | Dispositif de protection contre les mines |
WO2005100152A1 (fr) * | 2004-04-16 | 2005-10-27 | Airbus Deutschland Gmbh | Revetement pour structure d'avion |
EP1607272A1 (fr) | 2004-06-16 | 2005-12-21 | Jacob Composite GmbH | Pièce de construction pour absorbtion d'énergie en cas de collision |
FR2871725A1 (fr) * | 2004-06-18 | 2005-12-23 | Eads Deutschland Gmbh | Composant structurel absorbant les impulsions |
WO2008015360A1 (fr) * | 2006-08-01 | 2008-02-07 | Airbus France | Encadrement de porte pour aeronef |
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US1894582A (en) * | 1931-10-22 | 1933-01-17 | Aviat Patent And Res Corp | Retractable landing gear |
US3670996A (en) * | 1969-10-20 | 1972-06-20 | Boeing Co | Landing gear gravel and water deflector |
US4408736A (en) * | 1981-03-23 | 1983-10-11 | Grumman Aerospace Corporation | Landing gear door mud guard |
DE3141869C2 (de) * | 1981-10-22 | 1984-02-02 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Fußbodenkonstruktion für den oberen Laderaum eines Luftfahrzeuges |
EP0329434B1 (fr) * | 1988-02-19 | 1993-07-28 | Mitsubishi Jukogyo Kabushiki Kaisha | Structure textile pour le renforcement d'éléments de construction tels que poutres, en matériau composite, et procédé pour sa production |
US5058827A (en) * | 1989-12-07 | 1991-10-22 | Mcdonnell Douglas Corporation | Super debris deflector |
SU1761594A1 (ru) * | 1990-12-18 | 1992-09-15 | Ростовское высшее военное командно-инженерное училище ракетных войск | Многослойна амортизирующа панель |
DE4313592C2 (de) * | 1993-04-26 | 2000-02-17 | Daimler Chrysler Aerospace | Großraumflugzeug |
CN2220970Y (zh) * | 1994-09-28 | 1996-02-28 | 唐玉林 | 机动车船飞机弹力保险杠 |
DE69529453T2 (de) * | 1994-12-26 | 2003-10-02 | Honda Giken Kogyo K.K., Tokio/Tokyo | Mehrschichtige Platte aus faserverstärktem Kunststoff, und stossdämpfende Struktur |
GB0002016D0 (en) * | 2000-01-29 | 2000-03-22 | Gkn Westland Helicopters Ltd | Method of improving the crashworthiness of an aircraft |
JP4380909B2 (ja) * | 2000-12-06 | 2009-12-09 | 本田技研工業株式会社 | 繊維強化複合材からなる中空構造物及びその補強物の接合方法 |
JP4526698B2 (ja) * | 2000-12-22 | 2010-08-18 | 富士重工業株式会社 | 複合材成形品及びその製造方法 |
US6845943B2 (en) * | 2002-10-22 | 2005-01-25 | The Boeing Company | Apparatuses and methods for preventing foreign object damage to aircraft engines |
US7080805B2 (en) * | 2004-05-05 | 2006-07-25 | The Boeing Company | Stiffened structures and associated methods |
US7997529B2 (en) * | 2006-01-19 | 2011-08-16 | The Boeing Company | Compliant panel for aircraft |
DE102006026170B4 (de) * | 2006-06-06 | 2012-06-21 | Airbus Operations Gmbh | Flugzeugrumpfstruktur und Verfahren zu deren Herstellung |
US7997534B2 (en) * | 2006-10-13 | 2011-08-16 | Airbus Operations Gmbh | Connecting structure for an aircraft or spacecraft and method for producing the same |
CN101032947A (zh) * | 2007-04-18 | 2007-09-12 | 游丽鹏 | 对碰撞具有缓冲作用的汽车防撞装置 |
US7946531B2 (en) * | 2008-02-14 | 2011-05-24 | The Boeing Company | Debris deflecting device, system, and method |
-
2008
- 2008-07-31 FR FR0855310A patent/FR2934562B1/fr not_active Expired - Fee Related
-
2009
- 2009-07-31 CA CA2732551A patent/CA2732551C/fr not_active Expired - Fee Related
- 2009-07-31 EP EP09802561.2A patent/EP2307270B1/fr active Active
- 2009-07-31 CN CN200980130619.1A patent/CN102112370B/zh not_active Expired - Fee Related
- 2009-07-31 RU RU2011107296/11A patent/RU2517026C2/ru not_active IP Right Cessation
- 2009-07-31 WO PCT/FR2009/000966 patent/WO2010012913A1/fr active Application Filing
- 2009-07-31 US US13/056,423 patent/US9090338B2/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2022212A (en) | 1978-05-16 | 1979-12-12 | Renault | Bumper device for a motor vehicle |
US4460205A (en) | 1981-12-21 | 1984-07-17 | Concept Anaylsis Corporation | Energy absorbing vehicle bumper assembly |
EP0354403A2 (fr) * | 1988-08-11 | 1990-02-14 | Deutsche Aerospace Airbus Gesellschaft mit beschränkter Haftung | Dispositif pour arrêter une charge |
GB2346117A (en) | 1999-02-01 | 2000-08-02 | Ford Motor Co | Energy absorbing pocket member |
EP1464915A1 (fr) * | 2003-04-01 | 2004-10-06 | GEKE Technologie GmbH | Dispositif de protection contre les mines |
WO2005100152A1 (fr) * | 2004-04-16 | 2005-10-27 | Airbus Deutschland Gmbh | Revetement pour structure d'avion |
EP1607272A1 (fr) | 2004-06-16 | 2005-12-21 | Jacob Composite GmbH | Pièce de construction pour absorbtion d'énergie en cas de collision |
FR2871725A1 (fr) * | 2004-06-18 | 2005-12-23 | Eads Deutschland Gmbh | Composant structurel absorbant les impulsions |
WO2008015360A1 (fr) * | 2006-08-01 | 2008-02-07 | Airbus France | Encadrement de porte pour aeronef |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2551188A1 (fr) * | 2011-07-27 | 2013-01-30 | Airbus Operations S.A.S. | Panneau raidi pour aéronef, comprenant des raidisseurs à ames entaillées |
FR2978372A1 (fr) * | 2011-07-27 | 2013-02-01 | Airbus Operations Sas | Panneau raidi pour aeronef, comprenant des raidisseurs a ames entaillees |
US9126671B2 (en) | 2011-07-27 | 2015-09-08 | Airbus Operations S.A.S. | Stiff panel for aircraft, comprising stiffeners with notched cores |
WO2013092581A1 (fr) | 2011-12-20 | 2013-06-27 | Compagnie Generale Des Etablissements Michelin | Sommet pour pneumatique d'avion |
WO2013092578A1 (fr) | 2011-12-20 | 2013-06-27 | Compagnie Generale Des Etablissements Michelin | Sommet pour pneumatique d'avion |
WO2013092585A1 (fr) | 2011-12-20 | 2013-06-27 | Compagnie Generale Des Etablissements Michelin | Sommet pour pneumatique d'avion |
WO2016055504A1 (fr) | 2014-10-09 | 2016-04-14 | Compagnie Generale Des Etablissements Michelin | Bande de roulement pour pneumatique d'avion |
US10449806B2 (en) | 2014-10-09 | 2019-10-22 | Compagnie Generale Des Etablissements Michelin | Tread layer for an aircraft tire |
Also Published As
Publication number | Publication date |
---|---|
FR2934562B1 (fr) | 2011-04-22 |
CA2732551A1 (fr) | 2010-02-04 |
CA2732551C (fr) | 2016-12-13 |
US9090338B2 (en) | 2015-07-28 |
RU2517026C2 (ru) | 2014-05-27 |
CN102112370B (zh) | 2015-05-13 |
FR2934562A1 (fr) | 2010-02-05 |
EP2307270B1 (fr) | 2013-05-15 |
RU2011107296A (ru) | 2012-09-10 |
CN102112370A (zh) | 2011-06-29 |
EP2307270A1 (fr) | 2011-04-13 |
US20110174923A1 (en) | 2011-07-21 |
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