FR2948631B1 - Procede pour reduire voire supprimer les vibrations d'un rotor de sustentation et de propulsion d'un giravion, ainsi qu'un ensemble aerodynamique et un rotor mettant en oeuvre ledit procede - Google Patents
Procede pour reduire voire supprimer les vibrations d'un rotor de sustentation et de propulsion d'un giravion, ainsi qu'un ensemble aerodynamique et un rotor mettant en oeuvre ledit procedeInfo
- Publication number
- FR2948631B1 FR2948631B1 FR0903706A FR0903706A FR2948631B1 FR 2948631 B1 FR2948631 B1 FR 2948631B1 FR 0903706 A FR0903706 A FR 0903706A FR 0903706 A FR0903706 A FR 0903706A FR 2948631 B1 FR2948631 B1 FR 2948631B1
- Authority
- FR
- France
- Prior art keywords
- rotor
- sustaination
- giravion
- propulsion
- reducing
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title 2
- 230000001603 reducing effect Effects 0.000 title 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/001—Vibration damping devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/473—Constructional features
- B64C27/48—Root attachment to rotor head
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
- B64C27/72—Means acting on blades
-
- 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
- Y02T50/30—Wing lift efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Toys (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Wind Motors (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0903706A FR2948631B1 (fr) | 2009-07-28 | 2009-07-28 | Procede pour reduire voire supprimer les vibrations d'un rotor de sustentation et de propulsion d'un giravion, ainsi qu'un ensemble aerodynamique et un rotor mettant en oeuvre ledit procede |
US12/839,553 US8579587B2 (en) | 2009-07-28 | 2010-07-20 | Method of reducing or even eliminating the vibration of a rotorcraft lift and propulsion rotor, and an airfoil assembly and a rotor implementing said method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0903706A FR2948631B1 (fr) | 2009-07-28 | 2009-07-28 | Procede pour reduire voire supprimer les vibrations d'un rotor de sustentation et de propulsion d'un giravion, ainsi qu'un ensemble aerodynamique et un rotor mettant en oeuvre ledit procede |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2948631A1 FR2948631A1 (fr) | 2011-02-04 |
FR2948631B1 true FR2948631B1 (fr) | 2012-01-27 |
Family
ID=42029896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0903706A Expired - Fee Related FR2948631B1 (fr) | 2009-07-28 | 2009-07-28 | Procede pour reduire voire supprimer les vibrations d'un rotor de sustentation et de propulsion d'un giravion, ainsi qu'un ensemble aerodynamique et un rotor mettant en oeuvre ledit procede |
Country Status (2)
Country | Link |
---|---|
US (1) | US8579587B2 (fr) |
FR (1) | FR2948631B1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8807946B2 (en) | 2010-09-16 | 2014-08-19 | International Business Machines Corporation | Cyclic blade speed control apparatus and method |
US8932015B2 (en) * | 2011-05-06 | 2015-01-13 | International Business Machines Corporation | Hydraulic cyclic blade speed control apparatus and method |
CN103010456B (zh) * | 2012-09-21 | 2015-07-08 | 中国空间技术研究院 | 一种变直径、变桨距新型螺旋桨 |
CN102935890B (zh) * | 2012-09-21 | 2015-05-27 | 中国空间技术研究院 | 一种可变直径螺旋桨 |
EP3055207B1 (fr) * | 2013-10-10 | 2018-10-03 | UMS Skeldar Sweden AB | Système et procédé de mesure d'angle de battement d'hélicoptère |
US11037423B2 (en) * | 2015-09-23 | 2021-06-15 | Ali Kord | Posture monitor |
CA3063192A1 (fr) * | 2017-05-10 | 2018-11-15 | Embry-Riddle Aeronautical University, Inc. | Systemes et procedes d'attenuation du bruit pour aeronef hybride et electrique |
CN108502170A (zh) * | 2018-03-23 | 2018-09-07 | 陈玮 | 一种环保医疗直升机救援装置 |
CN114802715A (zh) * | 2022-01-27 | 2022-07-29 | 南京航空航天大学 | 基于液压扭管变距的直升机旋翼操纵装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1188947A (en) | 1966-10-24 | 1970-04-22 | Westland Aircraft Ltd | Improvements in or relating to Lift Rotors and Propellers. |
GB1188946A (en) * | 1966-10-24 | 1970-04-22 | Westland Aircraft Ltd | Improvements in or Relating to Rotor and Propeller Blades. |
JPH085436B2 (ja) * | 1989-06-05 | 1996-01-24 | 三菱重工業株式会社 | 可変径ロータ |
JPH04215596A (ja) * | 1990-12-12 | 1992-08-06 | Mitsubishi Heavy Ind Ltd | ヘリコプタ |
US5253979A (en) * | 1992-06-01 | 1993-10-19 | United Technologies Corporation | Variable diameter rotor having an offset twist |
US5735670A (en) * | 1995-12-11 | 1998-04-07 | Sikorsky Aircraft Corporation | Rotor system having alternating length rotor blades and positioning means therefor for reducing blade-vortex interaction (BVI) noise |
US5620303A (en) * | 1995-12-11 | 1997-04-15 | Sikorsky Aircraft Corporation | Rotor system having alternating length rotor blades for reducing blade-vortex interaction (BVI) noise |
US5642982A (en) * | 1995-12-11 | 1997-07-01 | Sikorsky Aircraft Corporation | Retraction/extension mechanism for variable diameter rotors |
US6030177A (en) * | 1998-12-18 | 2000-02-29 | Sikorsky Aircraft Corporation | Drive system for a variable diameter tilt rotor |
US6354536B1 (en) * | 2000-08-08 | 2002-03-12 | Sikorsky Aircraft Corporation | Rotor hub mounted actuator for controlling a blade on a rotorcraft |
US6655915B2 (en) * | 2002-05-01 | 2003-12-02 | Sikorsky Aircraft Corporation | Drive system for the retraction/extension of variable diameter rotor systems |
US7475847B2 (en) * | 2002-09-09 | 2009-01-13 | Gerbino Allen J | Retractable lifting blades for aircraft |
US8152466B2 (en) * | 2008-04-30 | 2012-04-10 | Agustawestland North America, Inc. | Centrifugal force actuated variable span helicopter rotor |
-
2009
- 2009-07-28 FR FR0903706A patent/FR2948631B1/fr not_active Expired - Fee Related
-
2010
- 2010-07-20 US US12/839,553 patent/US8579587B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20110027082A1 (en) | 2011-02-03 |
FR2948631A1 (fr) | 2011-02-04 |
US8579587B2 (en) | 2013-11-12 |
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Legal Events
Date | Code | Title | Description |
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CD | Change of name or company name |
Owner name: AIRBUS HELICOPTERS, FR Effective date: 20140602 |
|
PLFP | Fee payment |
Year of fee payment: 8 |
|
PLFP | Fee payment |
Year of fee payment: 9 |
|
PLFP | Fee payment |
Year of fee payment: 10 |
|
PLFP | Fee payment |
Year of fee payment: 12 |
|
PLFP | Fee payment |
Year of fee payment: 13 |
|
PLFP | Fee payment |
Year of fee payment: 14 |
|
ST | Notification of lapse |
Effective date: 20240305 |