DE2648343C3 - Schlag- und schwenkgelenkloser Rotor für Drehflügelflugzeuge - Google Patents
Schlag- und schwenkgelenkloser Rotor für DrehflügelflugzeugeInfo
- Publication number
- DE2648343C3 DE2648343C3 DE2648343A DE2648343A DE2648343C3 DE 2648343 C3 DE2648343 C3 DE 2648343C3 DE 2648343 A DE2648343 A DE 2648343A DE 2648343 A DE2648343 A DE 2648343A DE 2648343 C3 DE2648343 C3 DE 2648343C3
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- webs
- rotor according
- fiber composite
- fiber
- 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.)
- Expired
Links
- 239000000835 fiber Substances 0.000 claims description 49
- 239000002131 composite material Substances 0.000 claims description 25
- 238000004804 winding Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 9
- 125000006850 spacer group Chemical group 0.000 description 6
- 206010052904 Musculoskeletal stiffness Diseases 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 208000026843 stiff neck Diseases 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/37—Rotors having articulated joints
- B64C27/45—Rotors having articulated joints with a feathering hinge only
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Wind Motors (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2648343A DE2648343C3 (de) | 1976-10-26 | 1976-10-26 | Schlag- und schwenkgelenkloser Rotor für Drehflügelflugzeuge |
| GB43992/77A GB1545712A (en) | 1976-10-26 | 1977-10-21 | Rotor for a rotary wing aircraft |
| US05/844,317 US4195967A (en) | 1976-10-26 | 1977-10-21 | Rotor free of flapping hinges and free of lead-lag hinges |
| FR7732151A FR2369158A1 (fr) | 1976-10-26 | 1977-10-25 | Rotor d'helicoptere sans articulations de battement et de trainee |
| IT28940/77A IT1086932B (it) | 1976-10-26 | 1977-10-25 | Rotore,privo di snodi di battitura e di orientamento,per aeromobili ad ali rotanti |
| JP12768377A JPS5353898A (en) | 1976-10-26 | 1977-10-26 | Rotor without shock and inclination pivot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2648343A DE2648343C3 (de) | 1976-10-26 | 1976-10-26 | Schlag- und schwenkgelenkloser Rotor für Drehflügelflugzeuge |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2648343A1 DE2648343A1 (de) | 1978-04-27 |
| DE2648343B2 DE2648343B2 (de) | 1980-10-16 |
| DE2648343C3 true DE2648343C3 (de) | 1981-06-19 |
Family
ID=5991376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2648343A Expired DE2648343C3 (de) | 1976-10-26 | 1976-10-26 | Schlag- und schwenkgelenkloser Rotor für Drehflügelflugzeuge |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4195967A (https=) |
| JP (1) | JPS5353898A (https=) |
| DE (1) | DE2648343C3 (https=) |
| FR (1) | FR2369158A1 (https=) |
| GB (1) | GB1545712A (https=) |
| IT (1) | IT1086932B (https=) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2722250A1 (de) * | 1977-03-23 | 1978-11-23 | Messerschmitt Boelkow Blohm | Rotor eines drehfluegelflugzeugs |
| US4306836A (en) * | 1978-05-25 | 1981-12-22 | Kaman Aerospace Corporation | Hub assembly |
| IT1117626B (it) * | 1979-02-02 | 1986-02-17 | Aereonautiche Giovanni Augusta | Rotore articolato per elicotteri |
| DE3006088A1 (de) * | 1980-02-19 | 1981-08-20 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Rotor eines drehfluegelflugzeugs |
| DE3268723D1 (en) * | 1982-02-02 | 1986-03-13 | Messerschmitt Boelkow Blohm | Rotor, in particular for rotary wing aircraft, with fibre-reinforced plastic hub |
| IT1155132B (it) * | 1982-03-11 | 1987-01-21 | Agusta Aeronaut Costr | Rotore per elicotteri |
| IT1155131B (it) * | 1982-03-11 | 1987-01-21 | Agusta Aeronaut Costr | Mozzo di rotore di elicotteri |
| FR2529860B1 (fr) * | 1982-07-08 | 1987-01-02 | Aerospatiale | Plateau de moyeu, procede de fabrication et moyeu de rotor de giravion equipe de tels plateaux |
| US4466774A (en) * | 1982-08-30 | 1984-08-21 | United Technologies Corporation | Composite flexbeam joint |
| US4543040A (en) * | 1982-09-30 | 1985-09-24 | The Boeing Company | Helicopter rotor system |
| IT1159375B (it) * | 1983-04-07 | 1987-02-25 | Agusta Aeronaut Costr | Rotore per elicotteri |
| US4568244A (en) * | 1983-03-22 | 1986-02-04 | United Technologies Corporation | Fiber reinforced/epoxy matrix composite helicopter rotor main hub plate |
| US4585393A (en) * | 1983-03-22 | 1986-04-29 | United Technologies Corporation | Fiber reinforced/epoxy matrix composite helicopter rotor yoke |
| US4568245A (en) * | 1983-03-22 | 1986-02-04 | United Technologies Corporation | Composite helicopter rotor hub |
| GB2165026A (en) * | 1984-09-26 | 1986-04-03 | Jose A Avila | Composite torsion link |
| IT1182448B (it) * | 1985-02-19 | 1987-10-05 | Agusta Aeronaut Costr | Mozzo metallico per un rotore di elicottero |
| US4666753A (en) * | 1985-05-16 | 1987-05-19 | United Technologies Corporation | Filament wound structure for use as a torque drive |
| US4629644A (en) * | 1985-09-30 | 1986-12-16 | United Technologies Corporation | Filament wound structure having filament wound reinforcing rings for use as a torque drive |
| US4797064A (en) * | 1987-07-30 | 1989-01-10 | United Technologies Corporation | Composite helicopter rotor hub |
| US5980206A (en) * | 1996-05-31 | 1999-11-09 | Sikorsky Aircraft Corporation | Monolithic structure having improved flaw tolerance |
| US10988244B2 (en) | 2017-05-05 | 2021-04-27 | Laflamme Aero Inc. | Helicopter rotor hub assembly and helicopter including same |
| US10988243B2 (en) * | 2019-03-15 | 2021-04-27 | Bell Textron Inc. | Tension-torsion strap |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1205757A (en) * | 1967-02-07 | 1970-09-16 | Westland Aircraft Ltd | Improvements in or relating to rotor heads for rotary wing aircraft |
| US3384185A (en) * | 1967-06-02 | 1968-05-21 | Aerojet General Co | Rotor hubs |
| DE1531355B1 (de) * | 1967-07-01 | 1970-07-23 | Bolkow Gmbh | schlag-und schwenkgelenklose aufhangung der roterblatter eines drehflugelflgzeuges am roterkopf. |
| US3549444A (en) * | 1967-12-28 | 1970-12-22 | Harry S Katz | Filament wound blade and compressor |
| FR2041747A1 (https=) * | 1969-05-20 | 1971-02-05 | Sud Aviation | |
| DE2150741C3 (de) * | 1971-10-12 | 1973-11-22 | Messerschmitt Boelkow Blohm | Schlag- und schwenkgelenklose Aufhaengung der Rotorblaetter eines Drehfluegelflugzeuges am Rotorkopf |
| US3761199A (en) * | 1972-07-14 | 1973-09-25 | United Aircraft Corp | Helicopter rotor with redundant load carrying capability |
| US4012169A (en) * | 1973-05-10 | 1977-03-15 | Societe Nationale Industrielle Aerospatiale | Rotor for rotating wing type aircraft |
| GB1432117A (en) * | 1973-05-10 | 1976-04-14 | Aerospatiale | Rotor for rotating wing type aircraft |
| IT1011053B (it) * | 1974-03-07 | 1977-01-20 | Agusta Aeronaut Costr | Mozzo di rotore per elicottero dota do ti elementi flessibili quali ar ticolazioni virtuali |
| DE2541998C2 (de) * | 1975-09-20 | 1981-10-15 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Hubschrauberrotornabe mit schlag- und schwenkgelenklosem Blattanschluß |
| DE2638148C3 (de) * | 1976-08-25 | 1980-09-18 | Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen | Rotor für ein Drehflügelflugzeug |
-
1976
- 1976-10-26 DE DE2648343A patent/DE2648343C3/de not_active Expired
-
1977
- 1977-10-21 GB GB43992/77A patent/GB1545712A/en not_active Expired
- 1977-10-21 US US05/844,317 patent/US4195967A/en not_active Expired - Lifetime
- 1977-10-25 FR FR7732151A patent/FR2369158A1/fr active Granted
- 1977-10-25 IT IT28940/77A patent/IT1086932B/it active
- 1977-10-26 JP JP12768377A patent/JPS5353898A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2648343A1 (de) | 1978-04-27 |
| FR2369158A1 (fr) | 1978-05-26 |
| JPS5353898A (en) | 1978-05-16 |
| FR2369158B1 (https=) | 1984-06-01 |
| US4195967A (en) | 1980-04-01 |
| GB1545712A (en) | 1979-05-16 |
| DE2648343B2 (de) | 1980-10-16 |
| IT1086932B (it) | 1985-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAP | Request for examination filed | ||
| OD | Request for examination | ||
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |