IL57943A - Vibration absorber of pendular construction particularly for helicopters - Google Patents

Vibration absorber of pendular construction particularly for helicopters

Info

Publication number
IL57943A
IL57943A IL57943A IL5794379A IL57943A IL 57943 A IL57943 A IL 57943A IL 57943 A IL57943 A IL 57943A IL 5794379 A IL5794379 A IL 5794379A IL 57943 A IL57943 A IL 57943A
Authority
IL
Israel
Prior art keywords
pendular
helicopters
vibration absorber
construction particularly
construction
Prior art date
Application number
IL57943A
Other languages
English (en)
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
Priority claimed from US05/931,083 external-priority patent/US4213518A/en
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of IL57943A publication Critical patent/IL57943A/xx

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
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
    • F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
    • F16F7/116—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on metal springs
    • 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
    • B64C27/001—Vibration damping devices
    • B64C2027/005—Vibration damping devices using suspended masses

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Pipe Accessories (AREA)
IL57943A 1978-08-04 1979-07-31 Vibration absorber of pendular construction particularly for helicopters IL57943A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US93108478A 1978-08-04 1978-08-04
US93108578A 1978-08-04 1978-08-04
US05/931,083 US4213518A (en) 1978-08-04 1978-08-04 Fixed position pendular-type vibration absorber with linearization at fixed or variable frequencies

Publications (1)

Publication Number Publication Date
IL57943A true IL57943A (en) 1983-06-15

Family

ID=27420669

Family Applications (1)

Application Number Title Priority Date Filing Date
IL57943A IL57943A (en) 1978-08-04 1979-07-31 Vibration absorber of pendular construction particularly for helicopters

Country Status (6)

Country Link
EP (1) EP0008585B1 (no)
AU (1) AU524413B2 (no)
BR (1) BR7904969A (no)
DE (1) DE2962898D1 (no)
IL (1) IL57943A (no)
NO (1) NO151718C (no)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067548A1 (en) * 1981-06-02 1982-12-22 M.L. Aviation Company Limited Vibration suppressor
EP0075877B1 (en) * 1981-09-29 1986-12-03 Textron Inc. Nonlinear vibration absorber
GB8610350D0 (en) * 1986-04-28 1986-06-04 Secr Defence Self tuning vibration absorber
US6474434B1 (en) 1997-07-02 2002-11-05 Borringis Industrie Ag Drive wheel
FR2770825B1 (fr) * 1997-11-13 1999-12-31 Eurocopter France Dispositif pour reduire les vibrations dans la cabine d'un aeronef a voilure tournante, notamment un helicoptere
DK174404B1 (da) 1998-05-29 2003-02-17 Neg Micon As Vindmølle med svingningsdæmper
KR102380266B1 (ko) * 2021-10-27 2022-03-29 한화시스템 주식회사 피아식별장비의 응답기 장착장치 및 피아식별용 비행장치

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR407732A (fr) * 1909-10-09 1910-03-09 Hermann Frahm Dispositif pour l'amortissement des vibrations des corps
US2736393A (en) * 1950-06-02 1956-02-28 Houdaille Hershey Corp Tuned vibration damper
US2586043A (en) * 1950-10-14 1952-02-19 Northrop Aircraft Inc Kinetic boom damper
US2796149A (en) * 1952-12-30 1957-06-18 Sperry Rand Corp Vibration dampening attachment
US3005520A (en) * 1959-09-14 1961-10-24 United Aircraft Corp Vibration absorber
US3085657A (en) * 1960-09-29 1963-04-16 Hazeltine Research Inc Variable frequency vibration absorber
US3536165A (en) * 1967-12-29 1970-10-27 Boeing Co Vibration absorber tuner
US3540809A (en) * 1968-09-20 1970-11-17 United Aircraft Corp Vibration damped helicopter rotor
JPS5638438B1 (no) * 1971-03-08 1981-09-07
US3917246A (en) * 1974-04-15 1975-11-04 Joseph R Gartner Tunable vibration absorber
US4042230A (en) * 1975-10-22 1977-08-16 The Yokohama Rubber Company Ltd. Dynamic absorber with pneumatic springs

Also Published As

Publication number Publication date
AU524413B2 (en) 1982-09-16
EP0008585B1 (en) 1982-05-19
BR7904969A (pt) 1980-05-06
NO151718B (no) 1985-02-11
DE2962898D1 (en) 1982-07-08
NO151718C (no) 1985-05-22
NO792535L (no) 1980-02-05
EP0008585A1 (en) 1980-03-05
AU4951279A (en) 1980-02-07

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