FR2985287B1 - Structure acoustique alveolaire pour turboreacteur et turboreacteur incorporant au moins une telle structure - Google Patents

Structure acoustique alveolaire pour turboreacteur et turboreacteur incorporant au moins une telle structure Download PDF

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Publication number
FR2985287B1
FR2985287B1 FR1250073A FR1250073A FR2985287B1 FR 2985287 B1 FR2985287 B1 FR 2985287B1 FR 1250073 A FR1250073 A FR 1250073A FR 1250073 A FR1250073 A FR 1250073A FR 2985287 B1 FR2985287 B1 FR 2985287B1
Authority
FR
France
Prior art keywords
turbojetactor
alveolaire
incorporating
acoustic
acoustic structure
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
FR1250073A
Other languages
English (en)
Other versions
FR2985287A1 (fr
Inventor
Xavier Cazuc
Jean Philippe Joret
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 Nacelles SAS
Original Assignee
Safran Nacelles SAS
Aircelle SA
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
Priority to FR1250073A priority Critical patent/FR2985287B1/fr
Application filed by Safran Nacelles SAS, Aircelle SA filed Critical Safran Nacelles SAS
Priority to CA2857171A priority patent/CA2857171A1/fr
Priority to CN201280066340.3A priority patent/CN104114817A/zh
Priority to RU2014131244A priority patent/RU2014131244A/ru
Priority to PCT/FR2012/053094 priority patent/WO2013102724A1/fr
Priority to BR112014013202A priority patent/BR112014013202A2/pt
Priority to EP12819120.2A priority patent/EP2800878A1/fr
Publication of FR2985287A1 publication Critical patent/FR2985287A1/fr
Priority to US14/322,601 priority patent/US9670878B2/en
Application granted granted Critical
Publication of FR2985287B1 publication Critical patent/FR2985287B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/78—Other construction of jet pipes
    • F02K1/82—Jet pipe walls, e.g. liners
    • F02K1/827—Sound absorbing structures or liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • F05D2260/963—Preventing, counteracting or reducing vibration or noise by Helmholtz resonators
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR1250073A 2012-01-04 2012-01-04 Structure acoustique alveolaire pour turboreacteur et turboreacteur incorporant au moins une telle structure Active FR2985287B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR1250073A FR2985287B1 (fr) 2012-01-04 2012-01-04 Structure acoustique alveolaire pour turboreacteur et turboreacteur incorporant au moins une telle structure
CN201280066340.3A CN104114817A (zh) 2012-01-04 2012-12-28 涡轮喷气发动机的多孔声学结构和包括至少一个这样的多孔声学结构的涡轮喷气发动机
RU2014131244A RU2014131244A (ru) 2012-01-04 2012-12-28 Ячеистая акустическая конструкция для турбореактивного двигателя и турбореактивный двигатель, содержащий по меньшей мере одну такую конструкцию
PCT/FR2012/053094 WO2013102724A1 (fr) 2012-01-04 2012-12-28 Structure acoustique avéolaire pour turboréacteur et turboréacteur incorporant au moins une telle structure
CA2857171A CA2857171A1 (fr) 2012-01-04 2012-12-28 Structure acoustique alveolaire pour turboreacteur et turboreacteur incorporant au moins une telle structure
BR112014013202A BR112014013202A2 (pt) 2012-01-04 2012-12-28 estrutura acústica celular, especificamente para um motor turbojato, e motor turbojato
EP12819120.2A EP2800878A1 (fr) 2012-01-04 2012-12-28 Structure acoustique avéolaire pour turboréacteur et turboréacteur incorporant au moins une telle structure
US14/322,601 US9670878B2 (en) 2012-01-04 2014-07-02 Cellular acoustic structure for a turbojet engine and turbojet engine incorporating at least one such structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1250073A FR2985287B1 (fr) 2012-01-04 2012-01-04 Structure acoustique alveolaire pour turboreacteur et turboreacteur incorporant au moins une telle structure
FR1250073 2012-01-04

Publications (2)

Publication Number Publication Date
FR2985287A1 FR2985287A1 (fr) 2013-07-05
FR2985287B1 true FR2985287B1 (fr) 2018-02-23

Family

ID=47628337

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1250073A Active FR2985287B1 (fr) 2012-01-04 2012-01-04 Structure acoustique alveolaire pour turboreacteur et turboreacteur incorporant au moins une telle structure

Country Status (8)

Country Link
US (1) US9670878B2 (fr)
EP (1) EP2800878A1 (fr)
CN (1) CN104114817A (fr)
BR (1) BR112014013202A2 (fr)
CA (1) CA2857171A1 (fr)
FR (1) FR2985287B1 (fr)
RU (1) RU2014131244A (fr)
WO (1) WO2013102724A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3029573B1 (fr) * 2014-12-05 2019-04-05 Airbus Operations (S.A.S.) Inverseur de poussee pour un ensemble moteur d'aeronef, nacelle et ensemble moteur correspondants
US10332501B2 (en) * 2017-02-01 2019-06-25 General Electric Company Continuous degree of freedom acoustic cores
US11059559B2 (en) 2018-03-05 2021-07-13 General Electric Company Acoustic liners with oblique cellular structures
US11047304B2 (en) 2018-08-08 2021-06-29 General Electric Company Acoustic cores with sound-attenuating protuberances
US10823059B2 (en) 2018-10-03 2020-11-03 General Electric Company Acoustic core assemblies with mechanically joined acoustic core segments, and methods of mechanically joining acoustic core segments
US11434819B2 (en) 2019-03-29 2022-09-06 General Electric Company Acoustic liners with enhanced acoustic absorption and reduced drag characteristics
US11668236B2 (en) 2020-07-24 2023-06-06 General Electric Company Acoustic liners with low-frequency sound wave attenuating features
US11970992B2 (en) 2021-06-03 2024-04-30 General Electric Company Acoustic cores and tools and methods for forming the same
US11965425B2 (en) 2022-05-31 2024-04-23 General Electric Company Airfoil for a turbofan engine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3820628A (en) * 1972-10-02 1974-06-28 United Aircraft Corp Sound suppression means for rotating machinery
US3948346A (en) * 1974-04-02 1976-04-06 Mcdonnell Douglas Corporation Multi-layered acoustic liner
US4257998A (en) * 1978-05-01 1981-03-24 The Boenig Company Method of making a cellular core with internal septum
GB2038410B (en) * 1978-12-27 1982-11-17 Rolls Royce Acoustic lining utilising resonance
US5782082A (en) * 1996-06-13 1998-07-21 The Boeing Company Aircraft engine acoustic liner
US6619913B2 (en) * 2002-02-15 2003-09-16 General Electric Company Fan casing acoustic treatment
US7018172B2 (en) * 2003-12-22 2006-03-28 United Technologies Corporation Airfoil surface impedance modification for noise reduction in turbofan engines
US7540354B2 (en) * 2006-05-26 2009-06-02 United Technologies Corporation Micro-perforated acoustic liner
FR2915522A1 (fr) * 2007-04-30 2008-10-31 Airbus France Sas Panneau acoustique a caracteristique acoustique variable
US7607287B2 (en) * 2007-05-29 2009-10-27 United Technologies Corporation Airfoil acoustic impedance control
JP2009062977A (ja) * 2007-08-15 2009-03-26 Rohr Inc 線形音響ライナー
WO2011033469A1 (fr) * 2009-09-16 2011-03-24 Ranbaxy Laboratories Limited Procédé pour préparer du fosamprénavir calcium
EP2478202B1 (fr) * 2009-09-17 2019-08-07 GKN Aerospace Sweden AB Panneau d'atténuation du bruit et élément de turbine à gaz comportant un panneau d'atténuation du bruit

Also Published As

Publication number Publication date
US9670878B2 (en) 2017-06-06
WO2013102724A1 (fr) 2013-07-11
FR2985287A1 (fr) 2013-07-05
US20140341744A1 (en) 2014-11-20
RU2014131244A (ru) 2016-02-27
EP2800878A1 (fr) 2014-11-12
CA2857171A1 (fr) 2013-07-11
CN104114817A (zh) 2014-10-22
BR112014013202A2 (pt) 2017-06-13

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