CA2028265A1 - Dispositif permettant de synchroniser la position des pales de plusieurs helices - Google Patents

Dispositif permettant de synchroniser la position des pales de plusieurs helices

Info

Publication number
CA2028265A1
CA2028265A1 CA2028265A CA2028265A CA2028265A1 CA 2028265 A1 CA2028265 A1 CA 2028265A1 CA 2028265 A CA2028265 A CA 2028265A CA 2028265 A CA2028265 A CA 2028265A CA 2028265 A1 CA2028265 A1 CA 2028265A1
Authority
CA
Canada
Prior art keywords
phase angle
relative phase
synchrophase
cabin
blades
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
CA2028265A
Other languages
English (en)
Other versions
CA2028265C (fr
Inventor
Dick Kaptein
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.)
Fokker Aircraft BV
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2028265A1 publication Critical patent/CA2028265A1/fr
Application granted granted Critical
Publication of CA2028265C publication Critical patent/CA2028265C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/46—Arrangements of, or constructional features peculiar to, multiple propellers
    • B64C11/50—Phase synchronisation between multiple propellers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Vibration Prevention Devices (AREA)
CA002028265A 1989-10-20 1990-10-22 Dispositif permettant de synchroniser la position des pales de plusieurs helices Expired - Fee Related CA2028265C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8923643A GB2237415A (en) 1989-10-20 1989-10-20 Propeller blade synchrophasing
GB8923643.4 1989-10-20

Publications (2)

Publication Number Publication Date
CA2028265A1 true CA2028265A1 (fr) 1991-04-21
CA2028265C CA2028265C (fr) 1996-02-06

Family

ID=10664878

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002028265A Expired - Fee Related CA2028265C (fr) 1989-10-20 1990-10-22 Dispositif permettant de synchroniser la position des pales de plusieurs helices

Country Status (5)

Country Link
US (2) US5150855A (fr)
EP (1) EP0423902B1 (fr)
CA (1) CA2028265C (fr)
DE (1) DE69005782T2 (fr)
GB (1) GB2237415A (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5551649A (en) * 1989-10-20 1996-09-03 Fokker Aircraft B.V. Propeller blade position controller
GB9017598D0 (en) * 1990-08-10 1990-09-26 Dowty Aerospace Gloucester A propeller control system
US5359663A (en) * 1993-09-02 1994-10-25 The United States Of America As Represented By The Secretary Of The Navy Method and system for suppressing noise induced in a fluid medium by a body moving therethrough
US5453943A (en) * 1994-02-18 1995-09-26 United Technologies Corporation Adaptive synchrophaser for reducing aircraft cabin noise and vibration
US5586065A (en) * 1994-05-31 1996-12-17 The Boeing Company Method and apparatus for minimizing aircraft cabin noise
US5478199A (en) * 1994-11-28 1995-12-26 General Electric Company Active low noise fan assembly
JP2939940B2 (ja) * 1996-07-09 1999-08-25 日本電気株式会社 ファン音消音装置
US5789678A (en) * 1996-10-22 1998-08-04 General Electric Company Method for reducing noise and/or vibration from multiple rotating machines
US5934610A (en) * 1997-10-14 1999-08-10 Endevco Corporation Vibration monitoring system for multiple aircraft engines
US6044700A (en) * 1997-10-14 2000-04-04 Endevco Corporation Aircraft equipment configuration identification interface guide
US5997360A (en) * 1997-10-14 1999-12-07 Gen-Kuong; Fernando Francisco Aircraft equipment configuration identification interface
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
US6493689B2 (en) * 2000-12-29 2002-12-10 General Dynamics Advanced Technology Systems, Inc. Neural net controller for noise and vibration reduction
DE10212036B4 (de) * 2002-03-19 2009-01-02 Eads Deutschland Gmbh Verfahren zur Geräuschreduktion für mehrmotorige Propellerflugzeuge
US7027953B2 (en) * 2002-12-30 2006-04-11 Rsl Electronics Ltd. Method and system for diagnostics and prognostics of a mechanical system
US8201772B2 (en) * 2007-04-11 2012-06-19 Textron Innovations Inc. Method for suppressing vibration and acoustic signature in a tiltrotor aircraft
RU2647294C2 (ru) * 2016-03-15 2018-03-15 Вениамин Григорьевич Потанин Летательный аппарат "сампо 2"
KR101879515B1 (ko) * 2016-12-19 2018-07-18 한국해양과학기술원 쌍축선의 실시간 진동 정보와 프로펠러 회전각 조절을 통한 변동압력 저감 방법
KR101884534B1 (ko) * 2016-12-19 2018-08-01 한국해양과학기술원 쌍축선의 프로펠러 회전각 조절을 통한 선체 변동압력 저감 방법
US10435148B2 (en) 2017-05-08 2019-10-08 Aurora Flight Sciences Corporation Systems and methods for acoustic radiation control
US20200189722A1 (en) * 2018-12-18 2020-06-18 The Boeing Company Apparatus for controlling multi-rotor vehicle vibrations and related methods
CN113534093B (zh) * 2021-08-13 2023-06-27 北京环境特性研究所 飞机目标的螺旋桨叶片数量反演方法及目标识别方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB252647A (en) * 1925-02-28 1926-05-28 Raoul Bernat Improvements in or relating to devices for regulating flow of fluids and separating vapour from volatile liquids in particular in refrigerating machines
GB8615315D0 (en) * 1986-06-23 1986-07-30 Secr Defence Aircraft cabin noise control apparatus
GB2211635B (en) * 1987-10-28 1992-02-05 Fokker Aircraft Control system for synchrophasing aircraft propellers

Also Published As

Publication number Publication date
DE69005782D1 (de) 1994-02-17
US5150855A (en) 1992-09-29
EP0423902B1 (fr) 1994-01-05
GB2237415A (en) 1991-05-01
DE69005782T2 (de) 1994-04-28
US5295641A (en) 1994-03-22
CA2028265C (fr) 1996-02-06
EP0423902A1 (fr) 1991-04-24
GB8923643D0 (en) 1989-12-06

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Legal Events

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EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20041022