IT8321928A0 - Pendolo per smorzare o ammortizzare basse frequenze di eccitazione di una pala di rotore di elicottero osimilari. - Google Patents

Pendolo per smorzare o ammortizzare basse frequenze di eccitazione di una pala di rotore di elicottero osimilari.

Info

Publication number
IT8321928A0
IT8321928A0 IT8321928A IT2192883A IT8321928A0 IT 8321928 A0 IT8321928 A0 IT 8321928A0 IT 8321928 A IT8321928 A IT 8321928A IT 2192883 A IT2192883 A IT 2192883A IT 8321928 A0 IT8321928 A0 IT 8321928A0
Authority
IT
Italy
Prior art keywords
osimilar
pendulum
damp
rotor blade
helicopter rotor
Prior art date
Application number
IT8321928A
Other languages
English (en)
Other versions
IT1164293B (it
Inventor
Ferdinand Trier
Original Assignee
Messerchmitt Bolkow Blohm Ges
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 Messerchmitt Bolkow Blohm Ges filed Critical Messerchmitt Bolkow Blohm Ges
Publication of IT8321928A0 publication Critical patent/IT8321928A0/it
Application granted granted Critical
Publication of IT1164293B publication Critical patent/IT1164293B/it

Links

Classifications

    • 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
    • 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
    • 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
    • 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)
  • Toys (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Vibration Prevention Devices (AREA)
IT21928/83A 1982-07-13 1983-07-05 Pendolo per smorzare o ammortizzare basse frequenze di eccitazione di una pala di rotore di elicottero o similari IT1164293B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3226152A DE3226152C2 (de) 1982-07-13 1982-07-13 Pendelanordnung zur Dämpfung bzw. Tilgung niedriger Anregungsfrequenzen eines Hubschrauberrotorblattes o.dgl.

Publications (2)

Publication Number Publication Date
IT8321928A0 true IT8321928A0 (it) 1983-07-05
IT1164293B IT1164293B (it) 1987-04-08

Family

ID=6168321

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21928/83A IT1164293B (it) 1982-07-13 1983-07-05 Pendolo per smorzare o ammortizzare basse frequenze di eccitazione di una pala di rotore di elicottero o similari

Country Status (5)

Country Link
US (1) US4527951A (it)
DE (1) DE3226152C2 (it)
FR (1) FR2530216A1 (it)
GB (1) GB2123371B (it)
IT (1) IT1164293B (it)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4779712A (en) * 1986-09-15 1988-10-25 General Electric Company Equipoise assembly
DE3717460A1 (de) * 1986-11-03 1988-05-19 Teutsch Rudolf Vorrichtung und verfahren zur schwingungstilgung von schwingungslabilen koerpern
IT1256769B (it) * 1992-01-21 1995-12-15 Istituto Per Le Ricerche Di Te Smorzatore dinamico di vibrazioni bifrequenziale.
FR2733483B1 (fr) * 1995-04-27 1997-07-04 Eurocopter France Dispositif d'attenuation de vibrations pour rotor d'helicoptere
JP3337402B2 (ja) * 1996-10-22 2002-10-21 三菱重工業株式会社 自己同調型制振装置
NL1005000C2 (nl) * 1997-01-14 1998-07-15 Aerpac Special Products B V Windturbine.
US5924845A (en) * 1997-04-07 1999-07-20 The United States Of America As Represented By The Secretary Of The Air Force Centrifugal pendulum absorber for engine blades
CA2294761C (en) 1997-07-02 2004-11-30 Borringia Industrie Ag Drive wheel
DK174404B1 (da) * 1998-05-29 2003-02-17 Neg Micon As Vindmølle med svingningsdæmper
DE69925601T2 (de) * 1998-07-28 2006-04-27 Neg Micon A/S Windturbinenflügel mit u-förmigen schwingungsdämpfer
DE19911561A1 (de) 1999-03-16 2000-09-21 Mannesmann Sachs Ag Schwingungsdämpfungsvorrichtung
FR2808256B1 (fr) 2000-04-27 2002-08-30 Eurocopter France Rotor avec antivibreur de tete a pendules verticaux
JP3846208B2 (ja) * 2000-09-08 2006-11-15 東海ゴム工業株式会社 車両用制振装置
DE10113038C2 (de) * 2001-03-17 2003-04-10 Aloys Wobben Turmschwingungsüberwachung
JP2003083395A (ja) * 2001-06-28 2003-03-19 Toyota Industries Corp 回転機械
DE10202995B4 (de) * 2002-01-26 2004-01-29 Nordex Energy Gmbh Rotorblatt für eine Windkraftanlage mit einer Dämpfereinrichtung
WO2005008805A2 (en) * 2003-05-08 2005-01-27 Power Estimate Company Apparatus and method for generating electrical energy from motion
WO2005008804A2 (en) * 2003-05-08 2005-01-27 Power Estimate Company Apparatus and method for providing electrical energy generated from motion to an electrically powered device
US6813973B1 (en) * 2003-08-20 2004-11-09 Torque-Traction Technologies, Inc. Drive shaft balancing
US7737569B2 (en) * 2006-10-24 2010-06-15 Seadyne Energy Systems, Llc System and method for converting ocean wave energy into electricity
DE102009061276C5 (de) * 2008-11-18 2024-04-25 Schaeffler Technologies AG & Co. KG Einstückiges Pendel
US20110175365A1 (en) * 2010-01-15 2011-07-21 Douglas Hines Wind-driven electric generator structure vibration-deadening apparatus and methods
US8461730B2 (en) 2010-05-12 2013-06-11 Science Applications International Corporation Radial flux permanent magnet alternator with dielectric stator block
US9051918B1 (en) 2011-02-25 2015-06-09 Leidos, Inc. Vertical axis wind turbine with tensile support structure having rigid or collapsible vanes
US9133815B1 (en) 2011-05-11 2015-09-15 Leidos, Inc. Propeller-type double helix turbine apparatus and method
US8866328B1 (en) 2011-06-07 2014-10-21 Leidos, Inc. System and method for generated power from wave action
US9331535B1 (en) 2012-03-08 2016-05-03 Leidos, Inc. Radial flux alternator
DE102014100316B4 (de) * 2014-01-13 2016-06-09 Deutsches Zentrum für Luft- und Raumfahrt e.V. Anregungseinrichtung zur Erzeugung einer Schwingungsanregung eines Rotorblatts
FR3029170B1 (fr) 2014-11-28 2016-12-30 Airbus Helicopters Rotor arriere de giravion, giravion equipe d'un tel rotor arriere et procede d'equilibrage statique et/ou dynamique d'un rotor arriere de giravion
DE102015000787A1 (de) * 2015-01-26 2016-07-28 Senvion Gmbh Lastaufnahmemittel für einen Turm oder eine Turmsektion einer Windenergieanlage und Verfahren zum Errichten einer Windenergieanlage
US11261931B2 (en) * 2020-07-24 2022-03-01 Massachusetts Institute Of Technology Hybrid rotational passive energy absorber
US12330776B2 (en) * 2021-04-16 2025-06-17 Lockheed Martin Corporation Tunable mass damper assembly for a rotor blade

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2137418A (en) * 1937-01-09 1938-11-22 Wright Aeronautical Corp Dynamic damper
US2313024A (en) * 1938-12-07 1943-03-02 Salomon Francois Marie Bernard Device adapted to eliminate oscillations
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
US2317983A (en) * 1940-05-09 1943-05-04 William L Fischer Torsional vibration dampener
US2462961A (en) * 1945-01-24 1949-03-01 United Aircraft Corp Propeller blade vibration absorber
US2462962A (en) * 1945-09-26 1949-03-01 United Aircraft Corp Blade vibration absorber
US3372758A (en) * 1967-02-15 1968-03-12 United Aircraft Corp Vibration absorber
GB1445686A (en) * 1972-11-06 1976-08-11 Westland Aircraft Ltd Vibration absorbing systems
US4239455A (en) * 1978-09-11 1980-12-16 Textron, Inc. Blade-mounted centrifugal pendulum
US4239456A (en) * 1979-05-10 1980-12-16 Textron, Inc. Rotor blade out-of-plane centrifugal pendulums

Also Published As

Publication number Publication date
GB2123371B (en) 1985-08-29
DE3226152A1 (de) 1984-02-02
GB8316043D0 (en) 1983-07-20
US4527951A (en) 1985-07-09
IT1164293B (it) 1987-04-08
GB2123371A (en) 1984-02-01
FR2530216A1 (fr) 1984-01-20
DE3226152C2 (de) 1984-07-19

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