FR2041747A1 - - Google Patents
Info
- Publication number
- FR2041747A1 FR2041747A1 FR6916289A FR6916289A FR2041747A1 FR 2041747 A1 FR2041747 A1 FR 2041747A1 FR 6916289 A FR6916289 A FR 6916289A FR 6916289 A FR6916289 A FR 6916289A FR 2041747 A1 FR2041747 A1 FR 2041747A1
- Authority
- FR
- France
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0025—Producing blades or the like, e.g. blades for turbines, propellers, or wings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/33—Rotors having flexing arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/51—Damping of blade movements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
- F16F9/306—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium of the constrained layer type, i.e. comprising one or more constrained viscoelastic layers
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/902—High modulus filament or fiber
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Moulding By Coating Moulds (AREA)
- Reinforced Plastic Materials (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6916289A FR2041747A1 (US08197722-20120612-C00042.png) | 1969-05-20 | 1969-05-20 | |
DE19702022873 DE2022873C (de) | 1969-05-20 | 1970-05-11 | Verbindungselement zur Halterung von Rotorblattern an der Rotornabe eines Drehflügelflugzeugs |
GB2295870A GB1313181A (en) | 1969-05-20 | 1970-05-12 | Connecting element |
US37826A US3669566A (en) | 1969-05-20 | 1970-05-15 | Rotor construction |
JP4324870A JPS5424200B1 (US08197722-20120612-C00042.png) | 1969-05-20 | 1970-05-20 | |
US00221032A US3765267A (en) | 1969-05-20 | 1972-01-26 | Connecting element between two members enabling them to rotate in relation to one another in three axes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6916289A FR2041747A1 (US08197722-20120612-C00042.png) | 1969-05-20 | 1969-05-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2041747A1 true FR2041747A1 (US08197722-20120612-C00042.png) | 1971-02-05 |
Family
ID=9034291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6916289A Pending FR2041747A1 (US08197722-20120612-C00042.png) | 1969-05-20 | 1969-05-20 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3669566A (US08197722-20120612-C00042.png) |
JP (1) | JPS5424200B1 (US08197722-20120612-C00042.png) |
FR (1) | FR2041747A1 (US08197722-20120612-C00042.png) |
GB (1) | GB1313181A (US08197722-20120612-C00042.png) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2315432A1 (fr) * | 1975-06-26 | 1977-01-21 | United Technologies Corp | Rotor d'helicoptere |
FR2405802A1 (fr) * | 1977-08-11 | 1979-05-11 | Messerschmitt Boelkow Blohm | Organe de transmission de forces, en forme de boucle, en un materiau renforce par des fibres |
FR2442991A1 (fr) * | 1978-11-30 | 1980-06-27 | Vibrachoc Sa | Isolateur de vibrations |
EP0022918A2 (de) * | 1979-07-24 | 1981-01-28 | Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung | Befestigungsvorrichtung für die übereinander angeordneten Verbindungselemente von Rotorblättern, insbesondere für einen Hubschrauber |
FR2474395A1 (fr) * | 1980-01-28 | 1981-07-31 | Aerospatiale | Procede de fabrication d'un element flexible et torsible et elements obtenus selon ce procede |
EP0085127A1 (de) * | 1982-02-02 | 1983-08-10 | Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung | Rotor, insbesondere für ein Drehflügelflugzeug, mit einer Rotornabe aus Faserverbundwerkstoff |
EP0294289A1 (fr) * | 1987-06-04 | 1988-12-07 | AEROSPATIALE Société Nationale Industrielle | Bras de liaison torsible et flexible avec amortissement de flexion intégré, en particulier pour la liaison d'une pale de rotor à son moyeu, et rotor et moyeu équipés de tels bras |
US5284420A (en) * | 1991-10-16 | 1994-02-08 | Aerospatiale Nationale Insustrielle | Plastics multi-blade variable-pitch rotor |
EP2949579A1 (en) | 2014-05-28 | 2015-12-02 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | Flexbeam unit with at least one twisted flexbeam element |
US10189563B2 (en) | 2013-12-10 | 2019-01-29 | Airbus Helicopters Deutschland GmbH | Beam for a rotorcraft rotor and rotorcraft rotor |
Families Citing this family (68)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1433139A (en) * | 1972-06-30 | 1976-04-22 | Trans Dev Ltd | Composite tension members |
DE2305855C3 (de) * | 1973-02-02 | 1978-04-06 | Markes & Co Kg, 5880 Luedenscheid | Drehflügelrotor für Spielzeughubschrauber |
US3893788A (en) * | 1973-02-06 | 1975-07-08 | Bendix Corp | Flexible coupling |
US4012169A (en) * | 1973-05-10 | 1977-03-15 | Societe Nationale Industrielle Aerospatiale | Rotor for rotating wing type aircraft |
US3880551A (en) * | 1973-11-15 | 1975-04-29 | Boeing Co | Rotary head assembly for rotary wing aircraft |
US3874815A (en) * | 1973-11-15 | 1975-04-01 | Boeing Co | Rotary head assembly for rotary wing aircraft |
FR2252916B1 (US08197722-20120612-C00042.png) * | 1973-11-30 | 1978-02-24 | Aerospatiale | |
US3879153A (en) * | 1974-01-07 | 1975-04-22 | Gerald L Breuner | Attachment for rotor hub and pairs of blades |
FR2285298A1 (fr) * | 1974-09-19 | 1976-04-16 | Aerospatiale | Agencement de rotor de queue pour giravions |
US3999886A (en) * | 1974-10-10 | 1976-12-28 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Hingeless helicopter rotor with improved stability |
US4037988A (en) * | 1974-11-25 | 1977-07-26 | The Boeing Company | Flexure having pitch flap coupling |
FR2310920A1 (fr) * | 1975-05-14 | 1976-12-10 | Aerospatiale | Agencement de rotor pour aeronef a voilure tournante |
US3999887A (en) * | 1975-07-09 | 1976-12-28 | Lord Corporation | Propeller assembly |
GB1526433A (en) * | 1975-08-06 | 1978-09-27 | Secr Defence | Helicopter rotor blades |
FR2355935A1 (fr) * | 1976-02-10 | 1978-01-20 | Saurer Diederichs Sa | Perfectionnement aux aiguilles pour machines a tisser sans navette |
US4028003A (en) * | 1976-04-12 | 1977-06-07 | United Technologies Corporation | Torsionally compliant helicopter rotor blade with improved stability and performance characteristics |
US4047839A (en) * | 1976-05-28 | 1977-09-13 | United Technologies Corporation | Torque reacting means for the hubs of cross beam rotors |
CH596355A5 (US08197722-20120612-C00042.png) * | 1976-07-08 | 1978-03-15 | Rueti Ag Maschf | |
DE2645174C2 (de) * | 1976-10-07 | 1982-08-12 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Rotorkopf für einen schlag- und schwenkgelenklosen Rotor |
DE2648343C3 (de) * | 1976-10-26 | 1981-06-19 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Schlag- und schwenkgelenkloser Rotor für Drehflügelflugzeuge |
DE2657832C3 (de) * | 1976-12-21 | 1981-07-09 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Schäkel für die Flügelaufhängung im Rumpf eines Luft- oder Raumfahrzeuges |
US4150588A (en) * | 1976-12-29 | 1979-04-24 | Brewer Engineering Laboratories, Inc. | Dynamic vibration absorber |
US4087203A (en) * | 1977-01-07 | 1978-05-02 | United Technologies Corporation | Cross beam rotor |
FR2397325A1 (fr) * | 1977-07-13 | 1979-02-09 | Aerospatiale | Moyeu de rotor, en particulier pour le rotor principal d'un helicoptere |
FR2397326A2 (fr) * | 1977-07-13 | 1979-02-09 | Aerospatiale | Rotor sans articulations, en particulier pour un giravion |
DE2733101C3 (de) * | 1977-07-22 | 1980-09-25 | Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen | Schlag- und schwenkgelenklose Rotorblattlagerung |
US4227857A (en) * | 1977-08-19 | 1980-10-14 | Textron, Inc. | Composite flexural yoke for helicopters |
DE2758086C2 (de) * | 1977-12-24 | 1983-12-01 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Rotor für ein Drehflügelflugzeug mit gelenklosem Blattanschluß |
DE2810334A1 (de) * | 1978-03-10 | 1979-09-13 | Messerschmitt Boelkow Blohm | Rotorblatt, insbesondere fuer drehfluegelflugzeuge |
FR2430354A1 (fr) * | 1978-07-07 | 1980-02-01 | Aerospatiale | Helice multipale a pas variable d'un type simplifie |
US4293276A (en) * | 1978-10-27 | 1981-10-06 | Textron Inc. | Laminated composite rotor yoke |
USRE30713E (en) * | 1979-08-01 | 1981-08-18 | United Technologies Corp. | Cross beam rotor |
US4349317A (en) * | 1979-11-02 | 1982-09-14 | The Boeing Company | Bearingless rotor for single and tandem helicopters |
US4304694A (en) * | 1979-12-03 | 1981-12-08 | United Technologies Corporation | High damping epoxy resin composite |
DE3004451C2 (de) * | 1980-02-07 | 1985-04-04 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Elastomere Dämpfungseinrichtung |
GB2105818B (en) * | 1981-09-15 | 1985-09-04 | Steven Odobasic | Torsion link |
US4541777A (en) * | 1982-03-15 | 1985-09-17 | Hughes Helicopters, Inc. | Low drag, bearingless rotor head for helicopters |
US4455123A (en) * | 1982-06-01 | 1984-06-19 | Westland Plc | Connecting element and helicopter rotor incorporating same |
US4522563A (en) * | 1982-07-06 | 1985-06-11 | Bell Helicopter Textron, Inc. | Elastomeric system for mounting a helicopter rotor |
US4543040A (en) * | 1982-09-30 | 1985-09-24 | The Boeing Company | Helicopter rotor system |
GB2138100B (en) * | 1983-03-18 | 1987-02-11 | Steven Odobasic | Laminated tubular link |
US4585393A (en) * | 1983-03-22 | 1986-04-29 | United Technologies Corporation | Fiber reinforced/epoxy matrix composite helicopter rotor yoke |
US4568246A (en) * | 1983-03-22 | 1986-02-04 | United Technologies Corporation | Fiber reinforced/epoxy matrix composite helicopter rotor torque tube |
US4650401A (en) * | 1983-04-07 | 1987-03-17 | Mcdonnell Douglas Helicopter Company | Flat strap cruciform flexure for helicopter rotor systems |
EP0126613B1 (en) * | 1983-05-17 | 1989-09-20 | Sumitomo Heavy Industries, Ltd | Method of an apparatus for measuring dampening water for printing machine |
US4627635A (en) * | 1983-09-20 | 1986-12-09 | Koleda Michael T | Vibration damping units and vibration damped products |
US4648800A (en) * | 1984-05-15 | 1987-03-10 | United Technologies Corporation | Composite flexbeam for a rotary wing aircraft |
GB2165333A (en) * | 1984-09-26 | 1986-04-09 | Steven Odobasic | Laminated torsion elements |
GB2165026A (en) * | 1984-09-26 | 1986-04-03 | Jose A Avila | Composite torsion link |
US4714409A (en) * | 1985-10-15 | 1987-12-22 | Westland Plc | Helicopter rotor |
FR2590323B1 (fr) * | 1985-11-21 | 1989-08-11 | Aerospatiale | Moyeu en balancier pour rotor bi-pale |
US4898515A (en) * | 1986-07-23 | 1990-02-06 | United Technologies Corporation | External wrap of composite flexbeam |
US4746272A (en) * | 1986-07-23 | 1988-05-24 | United Technologies Corporation | Lobed composite flexbeam |
DE3643520A1 (de) * | 1986-12-19 | 1988-06-23 | Messerschmitt Boelkow Blohm | Rotor, insbesondere fuer drehfluegelflugzeuge |
US5091029A (en) * | 1991-01-15 | 1992-02-25 | United Technologies Corporation | Method of manufacturing a unitary, multi-legged helicopter rotor flexbeam made solely of composite materials |
FR2728540A1 (fr) | 1994-12-22 | 1996-06-28 | Eurocopter France | Rotor sans articulation a anneaux intermediaires de commande de pas |
FR2756211B1 (fr) * | 1996-11-26 | 1999-01-29 | Eurocopter France | Procede de fabrication d'un element composite flexible et torsible |
US7665969B2 (en) * | 2005-01-24 | 2010-02-23 | Bell Helicopter Textron Inc. | Assembly for providing flexure to blade system |
JP5113734B2 (ja) * | 2008-12-19 | 2013-01-09 | 川崎重工業株式会社 | フレックスビームの断面決定方法およびフレックスビーム |
JP5559621B2 (ja) * | 2010-07-12 | 2014-07-23 | 川崎重工業株式会社 | 回転翼航空機用無関節型ロータハブ構造体およびその製造方法 |
US9555880B2 (en) * | 2011-02-09 | 2017-01-31 | Sikorsky Aircraft Corporation | Flexbeam rotor |
PL2626298T3 (pl) * | 2012-02-09 | 2015-03-31 | Agustawestland Spa | Łopata wirnika statku powietrznego i odpowiedni sposób jej wytwarzania |
US9150305B2 (en) | 2012-02-29 | 2015-10-06 | Sikorsky Aircraft Corporation | Vibration absorbing device for flexbeams |
US9249849B2 (en) * | 2013-03-15 | 2016-02-02 | Darrell J Hartwick | Methods and mechanisms for the adjustment of stiffness in various equipment and devices |
CA2902932A1 (en) * | 2013-03-25 | 2014-10-02 | Airi Re Srl Unipersonale | System for operating helicopter blades with compressed air |
WO2015183658A1 (en) * | 2014-05-30 | 2015-12-03 | Sikorsky Aircraft Corporation | Structurally efficient pin wrap |
WO2021085588A1 (ja) * | 2019-10-31 | 2021-05-06 | 国立大学法人北陸先端科学技術大学院大学 | プロペラ |
US12060148B2 (en) | 2022-08-16 | 2024-08-13 | Honeywell International Inc. | Ground resonance detection and warning system and method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1334446A (fr) * | 1961-06-28 | 1963-08-09 | Bolkow Entwicklungen Kg | Articulation sans frottement |
US3265554A (en) * | 1962-06-11 | 1966-08-09 | Bendix Corp | Laminated tensile load carrying member having laminated end fittings |
US3320483A (en) * | 1966-03-11 | 1967-05-16 | Bell Telephone Labor Inc | Support member for card-edge type connectors |
US3330362A (en) * | 1966-05-31 | 1967-07-11 | Lockheed Aircraft Corp | Helicopter rotor |
-
1969
- 1969-05-20 FR FR6916289A patent/FR2041747A1/fr active Pending
-
1970
- 1970-05-12 GB GB2295870A patent/GB1313181A/en not_active Expired
- 1970-05-15 US US37826A patent/US3669566A/en not_active Expired - Lifetime
- 1970-05-20 JP JP4324870A patent/JPS5424200B1/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1334446A (fr) * | 1961-06-28 | 1963-08-09 | Bolkow Entwicklungen Kg | Articulation sans frottement |
US3265554A (en) * | 1962-06-11 | 1966-08-09 | Bendix Corp | Laminated tensile load carrying member having laminated end fittings |
US3320483A (en) * | 1966-03-11 | 1967-05-16 | Bell Telephone Labor Inc | Support member for card-edge type connectors |
US3330362A (en) * | 1966-05-31 | 1967-07-11 | Lockheed Aircraft Corp | Helicopter rotor |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2315432A1 (fr) * | 1975-06-26 | 1977-01-21 | United Technologies Corp | Rotor d'helicoptere |
FR2405802A1 (fr) * | 1977-08-11 | 1979-05-11 | Messerschmitt Boelkow Blohm | Organe de transmission de forces, en forme de boucle, en un materiau renforce par des fibres |
FR2442991A1 (fr) * | 1978-11-30 | 1980-06-27 | Vibrachoc Sa | Isolateur de vibrations |
EP0022918A2 (de) * | 1979-07-24 | 1981-01-28 | Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung | Befestigungsvorrichtung für die übereinander angeordneten Verbindungselemente von Rotorblättern, insbesondere für einen Hubschrauber |
EP0022918A3 (en) * | 1979-07-24 | 1981-11-04 | Messerschmitt-Bolkow-Blohm Gesellschaft Mit Beschrankter Haftung | Fastening device for superposed connecting means |
FR2474395A1 (fr) * | 1980-01-28 | 1981-07-31 | Aerospatiale | Procede de fabrication d'un element flexible et torsible et elements obtenus selon ce procede |
EP0033275A1 (fr) * | 1980-01-28 | 1981-08-05 | Aerospatiale Societe Nationale Industrielle | Procédé de fabrication d'un élément flexible et torsible et éléments obtenus selon ce procédé |
US4386989A (en) * | 1980-01-28 | 1983-06-07 | Societe Nationale Industrielle Et Aerospatiale | Method for producing a bendable and twistable element and such an element produced thereby |
EP0085127A1 (de) * | 1982-02-02 | 1983-08-10 | Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung | Rotor, insbesondere für ein Drehflügelflugzeug, mit einer Rotornabe aus Faserverbundwerkstoff |
EP0294289A1 (fr) * | 1987-06-04 | 1988-12-07 | AEROSPATIALE Société Nationale Industrielle | Bras de liaison torsible et flexible avec amortissement de flexion intégré, en particulier pour la liaison d'une pale de rotor à son moyeu, et rotor et moyeu équipés de tels bras |
FR2616122A1 (fr) * | 1987-06-04 | 1988-12-09 | Aerospatiale | Bras de liaison torsible et flexible avec amortissement de flexion integre, en particulier pour la liaison d'une pale de rotor a son moyeu, et rotor et moyeu equipes de tels bras |
US4822245A (en) * | 1987-06-04 | 1989-04-18 | Aerospatiale Societe Nationale Industrielle | Torsible, flexible linking arm with integrated flexion damping, in particular for linking a rotor blade to its hub, and rotor and hub equipped with such arms |
US5284420A (en) * | 1991-10-16 | 1994-02-08 | Aerospatiale Nationale Insustrielle | Plastics multi-blade variable-pitch rotor |
US10189563B2 (en) | 2013-12-10 | 2019-01-29 | Airbus Helicopters Deutschland GmbH | Beam for a rotorcraft rotor and rotorcraft rotor |
EP2949579A1 (en) | 2014-05-28 | 2015-12-02 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | Flexbeam unit with at least one twisted flexbeam element |
US10005552B2 (en) | 2014-05-28 | 2018-06-26 | Airbus Helicopters Deutschland GmbH | Flexbeam unit with at least one twisted flexbeam element |
Also Published As
Publication number | Publication date |
---|---|
JPS5424200B1 (US08197722-20120612-C00042.png) | 1979-08-18 |
US3669566A (en) | 1972-06-13 |
GB1313181A (en) | 1973-04-11 |
DE2022873A1 (de) | 1971-02-11 |
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Date | Code | Title | Description |
---|---|---|---|
CD | Change of name or company name |