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 procede

Info

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
Application number
FR0903706A
Other languages
English (en)
Other versions
FR2948631A1 (fr
Inventor
Gilles Herpin
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.)
Airbus Helicopters SAS
Original Assignee
Eurocopter France SA
Eurocopter SA
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 Eurocopter France SA, Eurocopter SA filed Critical Eurocopter France SA
Priority to FR0903706A priority Critical patent/FR2948631B1/fr
Priority to US12/839,553 priority patent/US8579587B2/en
Publication of FR2948631A1 publication Critical patent/FR2948631A1/fr
Application granted granted Critical
Publication of FR2948631B1 publication Critical patent/FR2948631B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Toys (AREA)
  • Wind Motors (AREA)
FR0903706A 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 Expired - Fee Related FR2948631B1 (fr)

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)

* Cited by examiner, † Cited by third party
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
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
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
WO2015053671A1 (fr) * 2013-10-10 2015-04-16 Saab Ab Système et procédé de mesure d'angle de battement
US20170084154A1 (en) * 2015-09-23 2017-03-23 Ali Kord Posture Monitor
US10933977B2 (en) * 2017-05-10 2021-03-02 Embry-Riddle Aeronautical University, Inc. Systems and methods for noise mitigation for hybrid and electric aircraft
CN108502170A (zh) * 2018-03-23 2018-09-07 陈玮 一种环保医疗直升机救援装置
CN114802715B (zh) * 2022-01-27 2024-09-20 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)

* Cited by examiner, † Cited by third party
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
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
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
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

Also Published As

Publication number Publication date
US8579587B2 (en) 2013-11-12
FR2948631A1 (fr) 2011-02-04
US20110027082A1 (en) 2011-02-03

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