IT1088385B - Sistema di isolamento delle vibrazioni e di sostegno della trasmissione e del rotore di un elicottero - Google Patents

Sistema di isolamento delle vibrazioni e di sostegno della trasmissione e del rotore di un elicottero

Info

Publication number
IT1088385B
IT1088385B IT30312/77A IT3031277A IT1088385B IT 1088385 B IT1088385 B IT 1088385B IT 30312/77 A IT30312/77 A IT 30312/77A IT 3031277 A IT3031277 A IT 3031277A IT 1088385 B IT1088385 B IT 1088385B
Authority
IT
Italy
Prior art keywords
rotor
support
insulation system
vibration insulation
helicopter transmission
Prior art date
Application number
IT30312/77A
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
Application filed by United Technologies Corp filed Critical United Technologies Corp
Application granted granted Critical
Publication of IT1088385B publication Critical patent/IT1088385B/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
    • 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
    • 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)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)
IT30312/77A 1976-12-09 1977-12-02 Sistema di isolamento delle vibrazioni e di sostegno della trasmissione e del rotore di un elicottero IT1088385B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/749,131 US4111386A (en) 1976-12-09 1976-12-09 Helicopter rotor and transmission mounting and vibration isolation system

Publications (1)

Publication Number Publication Date
IT1088385B true IT1088385B (it) 1985-06-10

Family

ID=25012393

Family Applications (1)

Application Number Title Priority Date Filing Date
IT30312/77A IT1088385B (it) 1976-12-09 1977-12-02 Sistema di isolamento delle vibrazioni e di sostegno della trasmissione e del rotore di un elicottero

Country Status (17)

Country Link
US (1) US4111386A (it)
JP (1) JPS5378598A (it)
AU (1) AU511090B2 (it)
BE (1) BE861601A (it)
BR (1) BR7708151A (it)
CA (1) CA1066683A (it)
CH (1) CH624899A5 (it)
DE (1) DE2753892A1 (it)
DK (1) DK547677A (it)
EG (1) EG13105A (it)
FR (1) FR2373443A1 (it)
GB (1) GB1563166A (it)
IL (1) IL53523A (it)
IT (1) IT1088385B (it)
NL (1) NL7713561A (it)
NO (1) NO142515C (it)
PL (1) PL119849B1 (it)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006762A1 (de) * 1979-02-26 1980-09-11 Textron Inc Aufhaengung fuer ein hubschrauber- rotorgetriebe
US4362281A (en) * 1979-03-01 1982-12-07 Textron, Inc. Pylon mounting system for reducing helicopter vibration
GB2043574B (en) * 1979-03-01 1982-12-22 Textron Inc Pylon mounting system for reducing helicopter vibration
US4275992A (en) * 1979-04-09 1981-06-30 Textron, Inc. Mode controlled attachment of rotor mounted components
US4430045A (en) 1979-04-24 1984-02-07 Bell Helicopter Textron, Inc. Helicopter power train for distributing rotor blade flapping displacements through a plurality of drive train components
US4725019A (en) * 1986-08-11 1988-02-16 The Boeing Company Aircraft engine mount with vertical vibration isolation
DE3706379A1 (de) * 1987-02-27 1988-09-08 Porsche Ag Aufhaengungssystem fuer ein antriebsaggregat eines hubschraubers
US5641133A (en) * 1994-05-11 1997-06-24 Mcdonnell Douglas Helicopter Co. Rotorcraft fuselage modal frequency placement using resilient mounting connections
US5762295A (en) * 1996-02-23 1998-06-09 Lord Corporation Dynamically optimized engine suspension system
US5713438A (en) * 1996-03-25 1998-02-03 Lord Corporation Method and apparatus for non-model based decentralized adaptive feedforward active vibration control
US5716300A (en) * 1996-05-01 1998-02-10 Sikorsky Aircraft Corporation Isolated ring gear for planetary gear drive systems
US6199801B1 (en) * 1997-12-01 2001-03-13 Csa Engineering, Inc. Whole-spacecraft passive isolation devices
US6290183B1 (en) 1999-10-19 2001-09-18 Csa Engineering, Inc. Three-axis, six degree-of-freedom, whole-spacecraft passive vibration isolation system
US6644590B2 (en) 2000-09-15 2003-11-11 General Dynamics Advanced Information Systems, Inc. Active system and method for vibration and noise reduction
WO2002040347A2 (en) * 2000-09-27 2002-05-23 Lord Corporation Mounting assembly for an aircraft auxiliary power unit
US7296766B2 (en) * 2004-07-13 2007-11-20 Sikorsky Aircraft Corporation Lightweight structural damping assembly
ATE551258T1 (de) * 2008-10-21 2012-04-15 Agustawestland Spa Hubschrauber
US8770513B2 (en) 2011-11-30 2014-07-08 Honeywell International Inc. Resilient aircraft engine mounts and aircraft engine mounting systems including the same
US8955809B2 (en) * 2012-12-05 2015-02-17 Hamilton Sundstrand Corporation Three-way mount bracket for aircraft cabin air supply system
EP2962935B1 (en) 2014-07-04 2016-09-21 AGUSTAWESTLAND S.p.A. Helicopter with noise and vibration damping transmission mounting
US10384790B2 (en) 2016-02-01 2019-08-20 Bell Textron Inc. Engine mount assemblies for aircraft
US10336459B2 (en) 2016-02-01 2019-07-02 Bell Helicopter Textron Inc. Clamped splines for aircraft engine mount assemblies
US10598251B2 (en) * 2017-04-14 2020-03-24 The Boeing Company Vibration damping link and method therefore
US20180372210A1 (en) * 2017-06-26 2018-12-27 Bell Helicopter Textron Inc. Safety Bypass Valve
US11167842B2 (en) * 2017-10-10 2021-11-09 Bell Helicopter Textron Inc. Mount for supporting a component and attenuating noise

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648509A (en) * 1947-04-17 1953-08-11 Lord Mfg Co Vibration controller for a resilient mounting
US2722391A (en) * 1952-05-31 1955-11-01 United Aircraft Corp Engine mount
US2761638A (en) * 1953-11-17 1956-09-04 Gordon L Getline Vibration-isolating power plant mounting system
US3163378A (en) * 1963-08-27 1964-12-29 Bell Aerospace Corp Rotary wing aircraft pylon mounting
GB1380710A (en) * 1970-12-29 1975-01-15 Kawasaki Heavy Ind Ltd Rotary wing aircraft
US3908399A (en) * 1973-04-23 1975-09-30 United Technologies Corp Primary flight control with isolated gear box
FR2228662B1 (it) * 1973-05-08 1976-11-12 Aerospatiale
US3863871A (en) * 1973-05-14 1975-02-04 Jr Daniel T Meisenheimer Vibration isolation mounting assembly
FR2232481B1 (it) * 1973-06-08 1976-05-07 Aerospatiale
GB1468359A (en) * 1973-10-09 1977-03-23 Westland Aircraft Ltd Bifilar vibration dampers
US3858831A (en) * 1973-12-26 1975-01-07 Textron Inc Nodal beam inertial flexure
FR2270144B1 (it) * 1974-05-09 1976-10-15 Aerospatiale

Also Published As

Publication number Publication date
FR2373443A1 (fr) 1978-07-07
PL119849B1 (en) 1982-01-30
BR7708151A (pt) 1978-08-15
CH624899A5 (it) 1981-08-31
NO142515C (no) 1980-09-03
NO142515B (no) 1980-05-27
NL7713561A (nl) 1978-06-13
BE861601A (fr) 1978-03-31
EG13105A (en) 1980-12-31
GB1563166A (en) 1980-03-19
JPS5378598A (en) 1978-07-12
IL53523A (en) 1982-11-30
PL202794A1 (pl) 1978-07-31
DK547677A (da) 1978-06-10
US4111386A (en) 1978-09-05
DE2753892A1 (de) 1978-06-15
NO774171L (no) 1978-06-12
AU511090B2 (en) 1980-07-24
AU3116877A (en) 1979-06-07
CA1066683A (en) 1979-11-20

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