DE69808651D1 - Schwingungsdämpfer für drehflügelflugzeuge - Google Patents

Schwingungsdämpfer für drehflügelflugzeuge

Info

Publication number
DE69808651D1
DE69808651D1 DE69808651T DE69808651T DE69808651D1 DE 69808651 D1 DE69808651 D1 DE 69808651D1 DE 69808651 T DE69808651 T DE 69808651T DE 69808651 T DE69808651 T DE 69808651T DE 69808651 D1 DE69808651 D1 DE 69808651D1
Authority
DE
Germany
Prior art keywords
vibration damper
rotating wing
wing planes
planes
rotating
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
DE69808651T
Other languages
English (en)
Other versions
DE69808651T2 (de
Inventor
N Schmaling
J Miner
T Krauss
C Frederickson
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.)
Sikorsky Aircraft Corp
Original Assignee
Sikorsky Aircraft Corp
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 Sikorsky Aircraft Corp filed Critical Sikorsky Aircraft Corp
Application granted granted Critical
Publication of DE69808651D1 publication Critical patent/DE69808651D1/de
Publication of DE69808651T2 publication Critical patent/DE69808651T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B64C27/04—Helicopters
    • B64C27/12—Rotor drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C7/00—Structures or fairings not otherwise provided for
    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
    • F16F15/1414—Masses driven by elastic elements
    • F16F15/1421—Metallic springs, e.g. coil or spiral springs
    • F16F15/1428—Metallic springs, e.g. coil or spiral springs with a single mass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/001—Vibration damping devices
    • B64C2027/003—Vibration damping devices mounted on rotor hub, e.g. a rotary force generator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/20—Rotorcraft characterised by having shrouded rotors, e.g. flying platforms
    • 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
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/50—Vibration damping features

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)
DE69808651T 1997-08-28 1998-08-18 Schwingungsdämpfer für drehflügelflugzeuge Expired - Fee Related DE69808651T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/919,928 US5954480A (en) 1997-08-28 1997-08-28 Vibration isolator for rotorcraft
PCT/US1998/017140 WO1999010233A2 (en) 1997-08-28 1998-08-18 Vibration isolator for rotorcraft

Publications (2)

Publication Number Publication Date
DE69808651D1 true DE69808651D1 (de) 2002-11-14
DE69808651T2 DE69808651T2 (de) 2003-02-06

Family

ID=25442881

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69808651T Expired - Fee Related DE69808651T2 (de) 1997-08-28 1998-08-18 Schwingungsdämpfer für drehflügelflugzeuge

Country Status (6)

Country Link
US (1) US5954480A (de)
EP (1) EP1007406B1 (de)
JP (1) JP2002500119A (de)
DE (1) DE69808651T2 (de)
TW (1) TW368487B (de)
WO (1) WO1999010233A2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6318527B1 (en) * 1999-12-03 2001-11-20 Sikorsky Aircraft Corporation Inertial vibration isolator spring for helicopter
US8834027B2 (en) 2011-01-13 2014-09-16 Fouad Y. Zeidan Damper having modular flexible ligaments and variable gaps
EP1395488B1 (de) * 2001-04-19 2009-07-29 Bell Helicopter Textron Inc. Rotorsystemschwingungsdämpfer
US7621480B2 (en) * 2005-05-26 2009-11-24 Sikorsky Aircraft Corporation De-rotation system for a counter-rotating, coaxial rotor hub shaft fairing
US7607607B2 (en) * 2005-05-26 2009-10-27 Sikorsky Aircraft Corporation De-rotation system suitable for use with a shaft fairing system
US7229251B2 (en) * 2005-05-31 2007-06-12 Sikorsky Aircraft Corporation Rotor hub fairing system for a counter-rotating, coaxial rotor system
US8678658B2 (en) 2007-04-13 2014-03-25 Waukesha Bearings Corporation Tilting pad bearing
US8845196B2 (en) 2007-04-13 2014-09-30 Jongsoo Kim Compliant bearing
US10808756B2 (en) 2007-04-13 2020-10-20 Waukesha Bearings Corporation Compliant bearing
EP2227641B1 (de) * 2007-12-03 2016-07-20 Sikorsky Aircraft Corporation Magnetisches entdrehungssystem für ein wellenverkleidungssystem
EP2238018A2 (de) 2008-01-02 2010-10-13 Sikorsky Aircraft Corporation Planetenantidrehungssystem für ein wellenverkleidungssystem
EP2440800B1 (de) * 2009-06-08 2016-03-02 Waukesha Bearings Corporation Versetztes axialdruckdrehlager mit bidirektionaler rotation
FR2951698B1 (fr) 2009-10-27 2012-03-30 Eurocopter France Dispositif pour reduire les vibrations engendrees par un rotor d'un giravion, et giravion muni d'un tel dispositif
FR2959484B1 (fr) 2010-04-30 2012-11-09 Eurocopter France Dispositif pour reduire les vibrations engendrees par un rotor de sustentation d'un giravion, et moyeu d'un rotor muni d'un tel dispositif.
US20150122941A1 (en) * 2013-11-06 2015-05-07 Sikorsky Aircraft Corporation Counter-rotating rotor system with fairing
US10562617B2 (en) * 2016-03-14 2020-02-18 Bell Helicopter Textron Inc. Rotor hub vibration attenuator
WO2017209827A2 (en) * 2016-03-14 2017-12-07 Bell Helicopter Textron Inc. Rotor hub vibration attenuator
DE102018214789B4 (de) * 2018-08-30 2021-02-04 Zf Friedrichshafen Ag Riemenantriebsanordnung für einen Antriebsstrang eines Hubschraubers

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1803937A (en) * 1929-01-30 1931-05-05 Gen Motors Corp Cushion connection
US2473335A (en) * 1946-06-19 1949-06-14 Schwitzer Cummins Company Vibration damper
US3056456A (en) * 1960-01-27 1962-10-02 United Aircraft Corp Rotor head fairing
GB1217506A (en) * 1967-12-12 1970-12-31 Holset Engineering Co Torsional vibration damper
US3540809A (en) * 1968-09-20 1970-11-17 United Aircraft Corp Vibration damped helicopter rotor
GB1465266A (en) * 1973-04-26 1977-02-23 Westland Aircraft Ltd Rotors for rotary wing aircraft
US4057363A (en) * 1975-11-20 1977-11-08 United Technologies Corporation Extended arm bifilar and method to eliminate second order vibration excitation
GB1528057A (en) * 1976-01-20 1978-10-11 Westland Aircraft Ltd Vibration absorbers
US4046230A (en) * 1976-07-14 1977-09-06 Houdaille Industries, Inc. Tuned torsional viscous dampers
US4212588A (en) * 1978-05-11 1980-07-15 United Technologies Corporation Simplified rotor head fairing
US4225287A (en) * 1978-11-06 1980-09-30 Westland Aircraft Limited Vibration absorber for helicopter
US4596513A (en) * 1985-01-10 1986-06-24 United Technologies Corporation Helicopter air-spring vibration absorber
US5372478A (en) * 1993-02-04 1994-12-13 The Boeing Company Helicopter rotor damper
US5647726A (en) * 1996-02-15 1997-07-15 Bell Helicopter Textron Inc. Rotor system vibration absorber

Also Published As

Publication number Publication date
JP2002500119A (ja) 2002-01-08
WO1999010233A2 (en) 1999-03-04
WO1999010233A3 (en) 1999-05-06
TW368487B (en) 1999-09-01
DE69808651T2 (de) 2003-02-06
EP1007406A2 (de) 2000-06-14
EP1007406B1 (de) 2002-10-09
US5954480A (en) 1999-09-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee