JPH0239439B2 - - Google Patents

Info

Publication number
JPH0239439B2
JPH0239439B2 JP56016324A JP1632481A JPH0239439B2 JP H0239439 B2 JPH0239439 B2 JP H0239439B2 JP 56016324 A JP56016324 A JP 56016324A JP 1632481 A JP1632481 A JP 1632481A JP H0239439 B2 JPH0239439 B2 JP H0239439B2
Authority
JP
Japan
Prior art keywords
blade
hull
intermediate connecting
bending
connecting members
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 - Lifetime
Application number
JP56016324A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56124742A (en
Inventor
Buraun Deiiteru
Butsufusu Uorufugangu
Kiruhineru Andoreasu
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.)
METSUSAASHUMITSUTO BERUKO BUROOMU GmbH
Original Assignee
METSUSAASHUMITSUTO BERUKO BUROOMU GmbH
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 METSUSAASHUMITSUTO BERUKO BUROOMU GmbH filed Critical METSUSAASHUMITSUTO BERUKO BUROOMU GmbH
Publication of JPS56124742A publication Critical patent/JPS56124742A/ja
Publication of JPH0239439B2 publication Critical patent/JPH0239439B2/ja
Granted 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
    • F16F9/306—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium of the constrained layer type, i.e. comprising one or more constrained viscoelastic layers
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/51—Damping of blade movements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Wind Motors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
JP1632481A 1980-02-07 1981-02-07 Elastmer damping device Granted JPS56124742A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3004451A DE3004451C2 (de) 1980-02-07 1980-02-07 Elastomere Dämpfungseinrichtung

Publications (2)

Publication Number Publication Date
JPS56124742A JPS56124742A (en) 1981-09-30
JPH0239439B2 true JPH0239439B2 (enExample) 1990-09-05

Family

ID=6093958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1632481A Granted JPS56124742A (en) 1980-02-07 1981-02-07 Elastmer damping device

Country Status (4)

Country Link
US (1) US4334825A (enExample)
EP (1) EP0033771B1 (enExample)
JP (1) JPS56124742A (enExample)
DE (1) DE3004451C2 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526470C1 (de) * 1985-07-24 1987-01-02 Messerschmitt Boelkow Blohm Rotor,insbesondere eines Drehfluegelflugzeugs
DE68913928T2 (de) * 1988-12-09 1994-06-23 Trw Inc Viskoelastischer Dämpfungskörper und das dazugehörige Herstellungsverfahren.
DE19620427C1 (de) * 1996-05-21 1997-06-12 Eurocopter Deutschland Rotorblattanschluß
CN101297112B (zh) * 2005-11-03 2011-10-05 维斯塔斯风力系统有限公司 包括一个或多个振动阻尼器的风轮机叶片
US9150305B2 (en) 2012-02-29 2015-10-06 Sikorsky Aircraft Corporation Vibration absorbing device for flexbeams
US10442531B2 (en) 2015-08-18 2019-10-15 Sikorsky Aircraft Corporation Rotor damping

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2041747A1 (enExample) * 1969-05-20 1971-02-05 Sud Aviation
US3874815A (en) * 1973-11-15 1975-04-01 Boeing Co Rotary head assembly for rotary wing aircraft
US4120610A (en) * 1974-05-16 1978-10-17 Textron, Inc. Helicopter blade structure
US3999886A (en) * 1974-10-10 1976-12-28 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Hingeless helicopter rotor with improved stability
US4037988A (en) * 1974-11-25 1977-07-26 The Boeing Company Flexure having pitch flap coupling
DE2558709C3 (de) * 1975-12-24 1982-02-11 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Elastomere Dämpfungseinrichtung
US4093400A (en) * 1976-12-15 1978-06-06 United Technologies Corporation Cross beam rotor
FR2397325A1 (fr) * 1977-07-13 1979-02-09 Aerospatiale Moyeu de rotor, en particulier pour le rotor principal d'un helicoptere
DE2806119B2 (de) * 1978-02-14 1980-06-04 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Rotorblatt, insbesondere für Drehflügelflugzeuge
DE2810334A1 (de) * 1978-03-10 1979-09-13 Messerschmitt Boelkow Blohm Rotorblatt, insbesondere fuer drehfluegelflugzeuge
DE2823389A1 (de) * 1978-05-29 1979-12-13 Reinert Mueller Rotorsystem fuer hubschrauber
US4299538A (en) * 1978-12-06 1981-11-10 United Technologies Corporation Cross beam rotor
DE2903524C2 (de) * 1979-01-31 1982-02-25 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Schlag- und schwenkgelenkloser Anschluß von Rotorblättern eines Drehflügelflugzeuges

Also Published As

Publication number Publication date
EP0033771B1 (de) 1984-05-09
EP0033771A2 (de) 1981-08-19
DE3004451C2 (de) 1985-04-04
DE3004451A1 (de) 1981-08-13
US4334825A (en) 1982-06-15
JPS56124742A (en) 1981-09-30
EP0033771A3 (en) 1982-01-20

Similar Documents

Publication Publication Date Title
CN100532198C (zh) 使叶片系统具有弯曲能力的组件
US3669566A (en) Rotor construction
US4097193A (en) Elastomeric damping arrangement
US4273511A (en) Main rotor for a helicopter
KR101281162B1 (ko) 플랩과 래그에 힌지식으로 연결된 블레이드를 갖는 회전익항공기의 로터
US4601639A (en) Nodalized rotor
US4636142A (en) Rotating fan apparatus
US4129403A (en) Helicopter rotors
US4182597A (en) Helicopter rotor head
US6004099A (en) Rotor blade connection
JPH0239439B2 (enExample)
EP0187265A2 (en) Laminated compound support element
PT2179922E (pt) Helicóptero
DE69504089T2 (de) Dämpfer lager haltevorrichtung für einen lagerfreien hubschrauberrotor
US4349316A (en) Twist control for helicopter tail rotor pitch change
US4874292A (en) Apparatus for damping helicopter rotor blade oscillations
JP2633296B2 (ja) 連結用アーム及びこれを装着したロータ並びにハブ
US7275913B2 (en) Rotor and gyrocopter with said rotor
US4306837A (en) Bearingless tail rotor for helicopters
US4252503A (en) Rotor blade especially for rotary wing aircraft
US4360337A (en) Damping device for a helicopter rotor blade
US4541777A (en) Low drag, bearingless rotor head for helicopters
US3434373A (en) Helicopter tie-bar
WO2008020848A2 (en) Rotary-wing aircraft torque coupling with pad bearings
US3941503A (en) Helicopter rotor hub provided with flexible elements such as virtual hinges