CA1111400A - Constant frequency bifilar vibration absorber - Google Patents

Constant frequency bifilar vibration absorber

Info

Publication number
CA1111400A
CA1111400A CA000331688A CA331688A CA1111400A CA 1111400 A CA1111400 A CA 1111400A CA 000331688 A CA000331688 A CA 000331688A CA 331688 A CA331688 A CA 331688A CA 1111400 A CA1111400 A CA 1111400A
Authority
CA
Canada
Prior art keywords
mass
holes
bifilar
absorber
pendulous
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
Application number
CA000331688A
Other languages
English (en)
French (fr)
Inventor
John F. Madden
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.)
RTX Corp
Original Assignee
United Technologies 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 United Technologies Corp filed Critical United Technologies Corp
Application granted granted Critical
Publication of CA1111400A publication Critical patent/CA1111400A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/001—Vibration damping devices
    • 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
    • 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)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Vibration Prevention Devices (AREA)
  • Toys (AREA)
  • Catching Or Destruction (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
CA000331688A 1978-08-04 1979-07-12 Constant frequency bifilar vibration absorber Expired CA1111400A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US931,034 1978-08-04
US05/931,034 US4218187A (en) 1978-08-04 1978-08-04 Constant frequency bifilar vibration absorber

Publications (1)

Publication Number Publication Date
CA1111400A true CA1111400A (en) 1981-10-27

Family

ID=25460125

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000331688A Expired CA1111400A (en) 1978-08-04 1979-07-12 Constant frequency bifilar vibration absorber

Country Status (8)

Country Link
US (1) US4218187A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0008303A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5525692A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU523834B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR7904971A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1111400A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IL (1) IL57942A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO146460C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181513B (en) * 1985-10-03 1989-09-13 Ford Motor Co Automotive crankshaft bifilar pendulum vibration damper
US4739679A (en) * 1986-01-23 1988-04-26 Ford Motor Company Bifilar pendulum vibration damper for automotive installation
US5495924A (en) * 1994-07-13 1996-03-05 Quiescence Engineering Corp. Half-order centrifugal pendulum vibration absorber system
DE19604160C1 (de) * 1996-02-06 1997-05-28 Freudenberg Carl Fa Drehzahladaptiver Tilger
DE19831160A1 (de) * 1998-07-11 2000-01-13 Freudenberg Carl Fa Drehzahladaptiver Schwingungstilger
FR2808256B1 (fr) 2000-04-27 2002-08-30 Eurocopter France Rotor avec antivibreur de tete a pendules verticaux
US6746005B1 (en) 2001-10-04 2004-06-08 The United States Of America As Represented By The Secretary Of The Navy Constant natural frequency passive-active mount
US7722322B2 (en) * 2004-08-30 2010-05-25 Lord Corporation Computer system and program product for controlling vibrations
US8267652B2 (en) * 2004-08-30 2012-09-18 Lord Corporation Helicopter hub mounted vibration control and circular force generation systems for canceling vibrations
US8162606B2 (en) * 2004-08-30 2012-04-24 Lord Corporation Helicopter hub mounted vibration control and circular force generation systems for canceling vibrations
US8435002B2 (en) * 2004-08-30 2013-05-07 Lord Corporation Helicopter vibration control system and rotating assembly rotary forces generators for canceling vibrations
CN101022994B (zh) 2004-08-30 2012-07-04 洛德公司 直升飞机振动控制系统和消除振动的旋转力发生器
EP2209713B1 (en) * 2007-10-25 2013-09-25 Lord Corporation Distributed active vibration control systems and rotary wing aircraft with suppressed vibrations
US8403643B2 (en) 2008-03-20 2013-03-26 Sikorsky Aircraft Corporation Dual frequency hub mounted vibration suppressor system
DE102008051607A1 (de) 2008-10-14 2010-04-15 Daimler Ag Drehschwingungstilger
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.
US8813604B2 (en) * 2011-10-20 2014-08-26 Chrysler Group Llc Pendulum vibration absorber on a crankshaft
CN106233033B (zh) * 2014-04-17 2019-05-28 舍弗勒技术股份两合公司 离心力摆
WO2016026494A1 (de) * 2014-08-22 2016-02-25 Schaeffler Technologies AG & Co. KG Fliehkraftpendel und antriebssystem mit solch einem fliehkraftpendel
US10295014B2 (en) * 2015-11-24 2019-05-21 Ford Global Technologies, Llc Robust pendulum crank bumper
JP6536740B2 (ja) * 2016-03-16 2019-07-03 アイシン・エィ・ダブリュ株式会社 振動減衰装置
US10577089B2 (en) 2017-05-03 2020-03-03 Sikorsky Aircraft Corporation Integrated bifilar system that absorbs vibrations in both vertical and in-plane directions
FR3069604B1 (fr) * 2017-07-26 2019-08-23 Valeo Embrayages Dispositif d’amortissement pendulaire assoupli

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE407592A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1932-04-07
CH175420A (de) * 1935-01-07 1935-02-28 Raymond Sarazin Raoul Roland Einrichtung zur Dämpfung von Schwingungen.
US2306959A (en) * 1939-10-19 1942-12-29 Continental Aviat & Eng Corp Crankshaft dynamic balancing means
US2353681A (en) * 1939-11-03 1944-07-18 United Aircraft Corp Propeller hub damper
US3540809A (en) * 1968-09-20 1970-11-17 United Aircraft Corp Vibration damped helicopter rotor
GB1443148A (en) * 1972-10-19 1976-07-21 Westland Aircraft Ltd Bifilar vibration dampers
GB1468359A (en) * 1973-10-09 1977-03-23 Westland Aircraft Ltd Bifilar vibration dampers

Also Published As

Publication number Publication date
NO146460C (no) 1982-10-06
AU4950979A (en) 1980-02-07
IL57942A (en) 1982-07-30
EP0008303A1 (en) 1980-02-20
NO792534L (no) 1980-02-05
US4218187A (en) 1980-08-19
BR7904971A (pt) 1980-05-06
JPS6238200B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-08-17
AU523834B2 (en) 1982-08-19
NO146460B (no) 1982-06-28
JPS5525692A (en) 1980-02-23

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Legal Events

Date Code Title Description
MKEX Expiry