FR2449593A1 - Dispositif de suspension du fuselage a la transmission d'un helicoptere - Google Patents

Dispositif de suspension du fuselage a la transmission d'un helicoptere

Info

Publication number
FR2449593A1
FR2449593A1 FR8004158A FR8004158A FR2449593A1 FR 2449593 A1 FR2449593 A1 FR 2449593A1 FR 8004158 A FR8004158 A FR 8004158A FR 8004158 A FR8004158 A FR 8004158A FR 2449593 A1 FR2449593 A1 FR 2449593A1
Authority
FR
France
Prior art keywords
transmission
fuselage
isolators
vibrations
helicopter
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.)
Granted
Application number
FR8004158A
Other languages
English (en)
Other versions
FR2449593B1 (fr
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.)
Textron Inc
Original Assignee
Textron Inc
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 Textron Inc filed Critical Textron Inc
Publication of FR2449593A1 publication Critical patent/FR2449593A1/fr
Application granted granted Critical
Publication of FR2449593B1 publication Critical patent/FR2449593B1/fr
Granted 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
    • 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)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

CE DISPOSITIF COMPREND AU MOINS TROIS ISOLATEURS A INERTIE 26, 38, 30, 32 RELIES INDEPENDAMMENT A LA TRANSMISSION 12 POUR PORTER LE FUSELAGE DE L'HELICOPTERE. CHACUN DES ISOLATEURS 26, 28, 30, 32 EST MONTE DANS LE PLAN NODAL DE LA TRANSMISSION 12 AFIN D'ABSORBER LES VIBRATIONS S'EXERCANT DANS LE PLAN, ENGENDREES PAR LE ROTOR ET TRANSMISES PAR L'ARBRE 10 DE CELUI-CI. LES ISOLATEURS 26, 28, 30, 32 REPONDENT INDIVIDUELLEMENT AUX VIBRATIONS QUI LEUR SONT APPLIQUEES ET QUI ONT DES FREQUENCES PREDETERMINEES ET ENGENDRENT DES FORCES AGISSANT EN SENS INVERSE POUR REDUIRE L'AMPLITUDE DES VIBRATIONS TRANSMISES AU FUSELAGE. EN VARIANTE DES BIELLETTES FORMANT ORGANES D'ENTREE SONT RELIEES AUX ISOLATEURS DANS LE PLAN NODAL DE LA TRANSMISSION DE FACON A NE TRANSMETTRE QUE LES FORCES S'EXERCANT PARALLELEMENT A L'ARBRE 10 DU ROTOR.
FR8004158A 1979-02-26 1980-02-26 Dispositif de suspension du fuselage a la transmission d'un helicoptere Granted FR2449593A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1522979A 1979-02-26 1979-02-26

Publications (2)

Publication Number Publication Date
FR2449593A1 true FR2449593A1 (fr) 1980-09-19
FR2449593B1 FR2449593B1 (fr) 1983-07-18

Family

ID=21770216

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8004158A Granted FR2449593A1 (fr) 1979-02-26 1980-02-26 Dispositif de suspension du fuselage a la transmission d'un helicoptere

Country Status (12)

Country Link
JP (1) JPS55156798A (fr)
AR (1) AR226171A1 (fr)
AU (1) AU534537B2 (fr)
BR (1) BR8001117A (fr)
CA (1) CA1142155A (fr)
DE (1) DE3006762A1 (fr)
ES (1) ES488948A1 (fr)
FR (1) FR2449593A1 (fr)
GB (1) GB2043573B (fr)
IL (1) IL59458A (fr)
IT (1) IT1126962B (fr)
MX (1) MX6586E (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19711845C2 (de) * 1997-03-21 1999-01-14 Eurocopter Deutschland Mechanischer Schwingungstilger
US6328293B1 (en) * 1998-09-18 2001-12-11 Lord Corporation Multi-linkage suspension system including outboard isolators
WO2011103078A1 (fr) * 2010-02-16 2011-08-25 Bell Helicopter Textron Inc. Eliminateur de vibrations à inertie liquide à raideur variable

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615657A (en) * 1946-08-28 1952-10-28 Bell Aircraft Corp Helicopter engine-rotor support
FR2120131A1 (fr) * 1970-12-29 1972-08-11 Kawasaki Heavy Ind Ltd
US3698663A (en) * 1970-12-07 1972-10-17 Textron Inc Rotary wing pylon mounting system
FR2363737A1 (fr) * 1976-09-07 1978-03-31 Boeing Co Systeme d'isolation de vibrations
FR2373443A1 (fr) * 1976-12-09 1978-07-07 United Technologies Corp Rotor d'helicoptere, monture de transmission et systeme d'isolation contre les vibrations

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
US3857534A (en) * 1972-02-04 1974-12-31 Textron Inc Multi-frequency helicopter vibration isolation
FR2232481B1 (fr) * 1973-06-08 1976-05-07 Aerospatiale
US3858831A (en) * 1973-12-26 1975-01-07 Textron Inc Nodal beam inertial flexure
US3945628A (en) * 1973-12-26 1976-03-23 Textron Inc. Nodal beam inertial flexure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615657A (en) * 1946-08-28 1952-10-28 Bell Aircraft Corp Helicopter engine-rotor support
US3698663A (en) * 1970-12-07 1972-10-17 Textron Inc Rotary wing pylon mounting system
FR2120131A1 (fr) * 1970-12-29 1972-08-11 Kawasaki Heavy Ind Ltd
FR2363737A1 (fr) * 1976-09-07 1978-03-31 Boeing Co Systeme d'isolation de vibrations
FR2373443A1 (fr) * 1976-12-09 1978-07-07 United Technologies Corp Rotor d'helicoptere, monture de transmission et systeme d'isolation contre les vibrations

Also Published As

Publication number Publication date
DE3006762A1 (de) 1980-09-11
AU534537B2 (en) 1984-02-02
ES488948A1 (es) 1980-09-16
AU5585280A (en) 1980-09-04
IT1126962B (it) 1986-05-21
GB2043573A (en) 1980-10-08
JPS55156798A (en) 1980-12-06
GB2043573B (en) 1983-03-23
FR2449593B1 (fr) 1983-07-18
BR8001117A (pt) 1980-10-29
IT8047998A0 (it) 1980-02-25
IL59458A (en) 1984-11-30
CA1142155A (fr) 1983-03-01
JPH0214240B2 (fr) 1990-04-06
DE3006762C2 (fr) 1988-10-13
MX6586E (es) 1985-07-26
AR226171A1 (es) 1982-06-15

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Legal Events

Date Code Title Description
ST Notification of lapse