DE69613542D1 - Hubschrauber und Verfahren zur Verminderung der Vibrationen eines Hubschrauberrumpfes - Google Patents

Hubschrauber und Verfahren zur Verminderung der Vibrationen eines Hubschrauberrumpfes

Info

Publication number
DE69613542D1
DE69613542D1 DE69613542T DE69613542T DE69613542D1 DE 69613542 D1 DE69613542 D1 DE 69613542D1 DE 69613542 T DE69613542 T DE 69613542T DE 69613542 T DE69613542 T DE 69613542T DE 69613542 D1 DE69613542 D1 DE 69613542D1
Authority
DE
Germany
Prior art keywords
helicopter
vibration
reducing
fuselage
helicopter fuselage
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.)
Revoked
Application number
DE69613542T
Other languages
English (en)
Other versions
DE69613542T2 (de
Inventor
Alan Henry Vincent
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.)
AgustaWestland Ltd
Original Assignee
GKN Westland Helicopters Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10784118&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69613542(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by GKN Westland Helicopters Ltd filed Critical GKN Westland Helicopters Ltd
Publication of DE69613542D1 publication Critical patent/DE69613542D1/de
Application granted granted Critical
Publication of DE69613542T2 publication Critical patent/DE69613542T2/de
Anticipated expiration legal-status Critical
Revoked 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
    • 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
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • 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
    • F16F7/1005—Vibration-dampers; Shock-absorbers using inertia effect characterised by active control of the mass
    • F16F7/1017—Vibration-dampers; Shock-absorbers using inertia effect characterised by active control of the mass by fluid means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/001—Vibration damping devices
    • B64C2027/002—Vibration damping devices mounted between the rotor drive and the fuselage

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Vibration Prevention Devices (AREA)
DE69613542T 1995-11-18 1996-11-13 Hubschrauber und Verfahren zur Verminderung der Vibrationen eines Hubschrauberrumpfes Revoked DE69613542T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9523651.9A GB9523651D0 (en) 1995-11-18 1995-11-18 Helicopter and method for reucing vibration of a helicopter fuselage

Publications (2)

Publication Number Publication Date
DE69613542D1 true DE69613542D1 (de) 2001-08-02
DE69613542T2 DE69613542T2 (de) 2001-10-18

Family

ID=10784118

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69613542T Revoked DE69613542T2 (de) 1995-11-18 1996-11-13 Hubschrauber und Verfahren zur Verminderung der Vibrationen eines Hubschrauberrumpfes

Country Status (5)

Country Link
US (1) US5853144A (de)
EP (1) EP0774411B1 (de)
JP (2) JP4042922B2 (de)
DE (1) DE69613542T2 (de)
GB (1) GB9523651D0 (de)

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US6138947A (en) * 1997-08-22 2000-10-31 Sikorsky Aircraft Corporation Active noise control system for a defined volume
US6105900A (en) * 1997-12-23 2000-08-22 Sikorsky Aircraft Corporation Active noise control system for a helicopter gearbox mount
FR2784351B1 (fr) * 1998-10-12 2000-12-08 Eurocopter France Dispositif et procede pour reduire les vibrations engendrees sur la structure d'un aeronef a voilure tournante, notamment un helicoptere
US6229898B1 (en) * 1998-12-23 2001-05-08 Sikorsky Aircraft Corporation Active vibration control system using on-line system identification with enhanced noise reduction
DE10001159A1 (de) * 2000-01-13 2001-07-26 Liebherr Aerospace Gmbh Schwingungsisolator für Helikopter
GB2361757B (en) * 2000-04-28 2003-12-03 Bae Sys Electronics Ltd Improvements in or relating to the damping of vibration
US6832973B1 (en) 2000-07-21 2004-12-21 William A. Welsh System for active noise reduction
US6467723B1 (en) 2000-10-10 2002-10-22 Lord Corporation Active vibration control system for helicopter with improved actustor placement
US6869375B2 (en) * 2001-02-27 2005-03-22 Sikorsky Aircraft Corporation High output force actuator for an active vibration control system
ITBO20010560A1 (it) * 2001-09-17 2003-03-17 Marposs Spa Metodo e apparecchiatura per l'equilibratura dinamica di una struttura rotante
DE10154391A1 (de) * 2001-11-06 2003-05-22 Eurocopter Deutschland Vorrichtung und Verfahren zur Schwingungsisolation in einem Übertragungspfad
US7017857B2 (en) * 2002-09-16 2006-03-28 Foster-Miller, Inc. Active vibration control system
US7958801B2 (en) * 2003-10-01 2011-06-14 Sikorsky Aircraft Corporation Harmonic force generator for an active vibration control system
US7118328B2 (en) * 2004-03-12 2006-10-10 Sikorsky Aircraft Corporation Gearbox mounted force generator
WO2006083295A1 (en) * 2004-06-10 2006-08-10 Lord Corporation A method and system for controlling helicopter vibrations
US8162606B2 (en) * 2004-08-30 2012-04-24 Lord Corporation Helicopter hub mounted vibration control and circular force generation systems for canceling vibrations
EP1786670B1 (de) * 2004-08-30 2013-12-25 Lord Corporation Hubschrauberschwingungssteuerungssystem
DE602005008019D1 (de) * 2005-05-16 2008-08-21 Agusta Spa Hubschrauber mit verbesserter Schwingungskontrollvorrichtung
WO2008060681A2 (en) * 2006-05-06 2008-05-22 Lord Corporation Helicopter reduced vibration isolator axial support strut
US7648338B1 (en) * 2006-09-14 2010-01-19 Sikorsky Aircraft Corporation Dual higher harmonic control (HHC) for a counter-rotating, coaxial rotor system
EP1961657A1 (de) * 2007-02-22 2008-08-27 Steadicopter Ltd. Verbesserte Stabilisierung für Flugplattformen
WO2008107867A2 (en) * 2007-03-07 2008-09-12 Steadicopter Ltd. Improved stabilization for flight platforms
EP2071213B1 (de) * 2007-12-11 2014-12-03 General Electric Company Getrieberauschunterdrückung durch elektrische Antriebssteuerung
DE102008025298B4 (de) * 2008-05-27 2010-12-16 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren und Vorrichtung zur aktiven Dämpfung von Vertikalschwingungen bei einem Hubschrauber mit angehängter Außenlast
EP2241502B1 (de) * 2009-04-13 2017-03-08 Sikorsky Aircraft Corporation Aktive Schwingungsunterdrückung durch Leistungsminimierung
GB2492965B (en) * 2011-07-15 2018-05-02 Agustawestland Ltd A system and method for reducing the transmission of vibration from a first vibrating body to a second body
US10099780B2 (en) * 2013-10-07 2018-10-16 Sikorsky Aircraft Corporation Active vibration control actuator
US9284048B2 (en) 2013-10-14 2016-03-15 Sikorsky Aircraft Corporation Global airframe health characterization
US9580187B2 (en) 2014-04-22 2017-02-28 Sikorsky Aircraft Corporation Rotor index sensor system
WO2016048442A1 (en) * 2014-09-26 2016-03-31 Sikorsky Aircraft Corporation Damage adaptive vibration control
FR3052209B1 (fr) 2016-06-02 2018-06-01 Airbus Helicopters Resonateur, et aeronef muni de ce resonateur
FR3064247B1 (fr) * 2017-03-27 2021-09-17 Safran Helicopter Engines Amortissement des vibrations dans un aeronef a voilure tournante
US20180372210A1 (en) * 2017-06-26 2018-12-27 Bell Helicopter Textron Inc. Safety Bypass Valve
EP3599163B1 (de) * 2018-07-27 2020-11-11 LEONARDO S.p.A. Hubschrauberkit
EP3599162B1 (de) * 2018-07-27 2020-11-11 LEONARDO S.p.A. Hubschrauberkit
US11584520B1 (en) * 2021-10-14 2023-02-21 Textron Innovations Inc. Method and system for regulation of speed and position of a rotor in wing-borne flight

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Publication number Priority date Publication date Assignee Title
US3429376A (en) * 1966-10-18 1969-02-25 Kurt H Hohenemser Automatic control system for aircraft lifting rotor
US3464651A (en) * 1967-05-02 1969-09-02 United Aircraft Corp Rotor load proportioner for a compound helicopter
US3701499A (en) * 1968-04-08 1972-10-31 Wright Barry Corp Active fluid isolation system
US3938762A (en) * 1974-05-20 1976-02-17 Textron, Inc. Rotor blade force track sensing system and automatic span tracking system
US4519743A (en) * 1980-03-21 1985-05-28 Massachusetts Institute Of Technology Helicopter individual blade control system
US4470121A (en) * 1981-08-17 1984-09-04 United Technologies Corporation Multi-frequency vibration controller using fluid-filled cantilever beam for vibration excitation & absorption
US4819182A (en) * 1985-06-21 1989-04-04 Westland Plc Method and apparatus for reducing vibration of a helicopter fuselage
US4937758A (en) * 1987-09-04 1990-06-26 Technology Integration And Development Group, Inc. Method and apparatus for reducing vibration over the full operating range of a rotor and a host device
FR2680848B1 (fr) * 1991-08-29 1995-03-17 Aerospatiale Ste Nat Indle Procede et dispositif pour filtrer les excitations vibratoires transmises entre deux pieces, notamment entre le rotor et le fuselage d'un helicoptere.

Also Published As

Publication number Publication date
EP0774411A3 (de) 1997-11-26
EP0774411B1 (de) 2001-06-27
US5853144A (en) 1998-12-29
EP0774411A2 (de) 1997-05-21
GB9523651D0 (en) 1996-01-17
JP4312228B2 (ja) 2009-08-12
JPH09169300A (ja) 1997-06-30
DE69613542T2 (de) 2001-10-18
JP4042922B2 (ja) 2008-02-06
JP2007055602A (ja) 2007-03-08

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: WESTLAND HELICOPTERS LTD., YEOVIL, SOMERSET, GB

8363 Opposition against the patent
8331 Complete revocation