FR3064247B1 - DAMPING OF VIBRATIONS IN A ROTATING BLADE AIRCRAFT - Google Patents

DAMPING OF VIBRATIONS IN A ROTATING BLADE AIRCRAFT Download PDF

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Publication number
FR3064247B1
FR3064247B1 FR1752520A FR1752520A FR3064247B1 FR 3064247 B1 FR3064247 B1 FR 3064247B1 FR 1752520 A FR1752520 A FR 1752520A FR 1752520 A FR1752520 A FR 1752520A FR 3064247 B1 FR3064247 B1 FR 3064247B1
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France
Prior art keywords
vibrations
damping
rotating blade
cell
blade aircraft
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.)
Active
Application number
FR1752520A
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French (fr)
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FR3064247A1 (en
Inventor
Ludovic Meziere
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.)
Safran Helicopter Engines SAS
Original Assignee
Safran Helicopter Engines SAS
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Publication date
Application filed by Safran Helicopter Engines SAS filed Critical Safran Helicopter Engines SAS
Priority to FR1752520A priority Critical patent/FR3064247B1/en
Publication of FR3064247A1 publication Critical patent/FR3064247A1/en
Application granted granted Critical
Publication of FR3064247B1 publication Critical patent/FR3064247B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/001—Vibration damping devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Toys (AREA)

Abstract

Aéronef (10) à voilure tournante, tel qu'un hélicoptère, comportant une cellule (12) de pilotage et/ou de passagers, et au moins un moteur (14) et une boîte de transmission principale (16) pour l'entraînement en rotation de ladite voilure, caractérisé en ce que ledit au moins un moteur et ladite boîte de transmission principale sont situés sur une plateforme de support (22), et en ce que ladite cellule est suspendue à cette plateforme uniquement par des moyens (24) d'amortissement de vibrations de façon à limiter la transmission des vibrations depuis la plateforme à la cellule.Rotary wing aircraft (10), such as a helicopter, comprising a pilot and / or passenger cell (12), and at least one engine (14) and a main gearbox (16) for in-flight training. rotation of said wing, characterized in that said at least one engine and said main gearbox are located on a support platform (22), and in that said cell is suspended from this platform only by means (24) d 'vibration damping so as to limit the transmission of vibrations from the platform to the cell.

FR1752520A 2017-03-27 2017-03-27 DAMPING OF VIBRATIONS IN A ROTATING BLADE AIRCRAFT Active FR3064247B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1752520A FR3064247B1 (en) 2017-03-27 2017-03-27 DAMPING OF VIBRATIONS IN A ROTATING BLADE AIRCRAFT

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1752520 2017-03-27
FR1752520A FR3064247B1 (en) 2017-03-27 2017-03-27 DAMPING OF VIBRATIONS IN A ROTATING BLADE AIRCRAFT

Publications (2)

Publication Number Publication Date
FR3064247A1 FR3064247A1 (en) 2018-09-28
FR3064247B1 true FR3064247B1 (en) 2021-09-17

Family

ID=59649791

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1752520A Active FR3064247B1 (en) 2017-03-27 2017-03-27 DAMPING OF VIBRATIONS IN A ROTATING BLADE AIRCRAFT

Country Status (1)

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FR (1) FR3064247B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845917A (en) * 1971-10-18 1974-11-05 Textron Inc Helicopter vibration isolation
FR2451511A1 (en) * 1979-03-12 1980-10-10 Eurovib Grpt Interet Eco Mounting block for engine - is of elastic and uses coil spring embedded in viscous elastic pad cased elastic membrane
CA2135392C (en) * 1993-03-16 1999-12-07 Kiyoshi Sakura Helicopter
GB9523651D0 (en) * 1995-11-18 1996-01-17 Gkn Westland Helicopters Ltd Helicopter and method for reucing vibration of a helicopter fuselage
EP2930395B1 (en) * 2014-04-08 2020-03-04 Airbus Defence and Space GmbH A noise reduction system, a method and a helicopter

Also Published As

Publication number Publication date
FR3064247A1 (en) 2018-09-28

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