BR112012029277A2 - painel de tratamento acústico multicamadas - Google Patents

painel de tratamento acústico multicamadas

Info

Publication number
BR112012029277A2
BR112012029277A2 BR112012029277A BR112012029277A BR112012029277A2 BR 112012029277 A2 BR112012029277 A2 BR 112012029277A2 BR 112012029277 A BR112012029277 A BR 112012029277A BR 112012029277 A BR112012029277 A BR 112012029277A BR 112012029277 A2 BR112012029277 A2 BR 112012029277A2
Authority
BR
Brazil
Prior art keywords
skin
acoustic treatment
treatment panel
multilayer acoustic
honeycomb
Prior art date
Application number
BR112012029277A
Other languages
English (en)
Other versions
BR112012029277B1 (pt
Inventor
Benjamin André François Poirier
Georges Jean Xavier Riou
Jacky Novi Mardjono
Jacques Michel Albert Julliard
Jean-Michel Jean-François Ville
Original Assignee
Centre Nat Rech Scient
Snecma
Univ Compiegne Tech
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 Centre Nat Rech Scient, Snecma, Univ Compiegne Tech filed Critical Centre Nat Rech Scient
Publication of BR112012029277A2 publication Critical patent/BR112012029277A2/pt
Publication of BR112012029277B1 publication Critical patent/BR112012029277B1/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/24—Heat or noise insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/04—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of exhaust outlets or jet pipes
    • B64D33/06—Silencing exhaust or propulsion jets
    • 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
    • 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
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • 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
    • 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
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/28—Three-dimensional patterned
    • F05D2250/283—Three-dimensional patterned honeycomb
    • 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
    • F05D2250/00—Geometry
    • F05D2250/30—Arrangement of components
    • F05D2250/32—Arrangement of components according to their shape
    • 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
    • F05D2250/00—Geometry
    • F05D2250/60—Structure; Surface texture
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

painel de tratamento acústico multicamadas. a invenção se refere a um painel de tratamento acústico multicamadas (100) que compreende uma primeira alma de estriutura alveolar (102) tomada em sanduiche entre uma pele perfurada (104) e uma pele intermediária (106), e uma segunda alma de estrutura alveolar (108) tomada em sanduíche entre a pele intermediária e uma pele plena (110). a pele perfurada compreendendo pelo menos um par de zonas de grande porosidade que apresentam uma taxa de perfuração superior àquela do resto da pele perfurada e que é formada por uma zona de entrada (114a) e por uma zona de saída (114b) espaçadas longitudinalmente uma da outra, as zonas de grande porosidade de um mesmo par se comunicando através da primeira alma de estrutura alveolar e da pele intermediária com as duas extremidades de um canal de escoamento de ondas sonoras (118) disposto na segunda alma de estrutura alveolar.
BR112012029277-3A 2010-05-19 2011-05-12 painel de tratamento acústico multicamadas, nacela de turborreator e turborreator BR112012029277B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1053881A FR2960334B1 (fr) 2010-05-19 2010-05-19 Panneau de traitement acoustique multicouches
FR1053881 2010-05-19
PCT/FR2011/051062 WO2011144842A2 (fr) 2010-05-19 2011-05-12 Panneau de traitement acoustique multicouches

Publications (2)

Publication Number Publication Date
BR112012029277A2 true BR112012029277A2 (pt) 2016-07-26
BR112012029277B1 BR112012029277B1 (pt) 2020-12-22

Family

ID=43332309

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012029277-3A BR112012029277B1 (pt) 2010-05-19 2011-05-12 painel de tratamento acústico multicamadas, nacela de turborreator e turborreator

Country Status (8)

Country Link
US (1) US9546602B2 (pt)
EP (1) EP2572093B1 (pt)
CN (1) CN103038484B (pt)
BR (1) BR112012029277B1 (pt)
CA (1) CA2799543C (pt)
FR (1) FR2960334B1 (pt)
RU (1) RU2578768C2 (pt)
WO (1) WO2011144842A2 (pt)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2956445B1 (fr) * 2010-02-12 2012-08-24 Turbomeca Revetement d'attenuation de bruit pour un conduit de guidage de gaz, tuyere et moteur a turbine a gaz avec le revetement
FR2961175B1 (fr) * 2010-06-14 2013-01-04 Aircelle Sa Nacelle de turboreacteur
US9514734B1 (en) * 2011-06-30 2016-12-06 The United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration Acoustic liners for turbine engines
US9752494B2 (en) * 2013-03-15 2017-09-05 Kohler Co. Noise suppression systems
FR3013076B1 (fr) * 2013-11-13 2017-12-08 Ge Energy Products France Snc Structure de protection thermo-acoustique pour machine tournante
US9693166B2 (en) * 2014-06-24 2017-06-27 The Boeing Company Automated production of acoustic structures
DE102014218350A1 (de) * 2014-09-12 2016-03-17 Rolls-Royce Deutschland Ltd & Co Kg Schalldämpfende Anordnung für eine Triebwerksgondel und Triebwerksgondel mit einer solchen Anordnung
US9919500B2 (en) * 2014-09-29 2018-03-20 Pratt & Whitney Canada Corp. Inner bypass duct
GB2533298B (en) * 2014-12-15 2017-06-07 Jaguar Land Rover Ltd Acoustic baffle
CA2970780C (en) * 2014-12-18 2022-11-08 Bombardier Inc. Sound absorbers for airframe components
FR3031142B1 (fr) 2014-12-24 2017-03-24 Aircelle Sa Panneau d’attenuation acoustique pour nacelle de turboreacteur
US10971128B2 (en) 2015-04-10 2021-04-06 Mra Systems, Llc Acoustic liner and methods of constructing an acoustic liner
US9783316B2 (en) * 2015-06-22 2017-10-10 Rohr, Inc. Acoustic panel assembly with a folding chamber
FR3048024B1 (fr) * 2016-02-19 2018-03-23 Snecma Dispositif et procede de perforation d'un panneau
CN105845122B (zh) * 2016-03-22 2019-12-24 南京大学 一种超薄双向声阻隔通道
US9732677B1 (en) * 2016-05-12 2017-08-15 Rohr, Inc. Broadband acoustic panels coupled with large secondary cavities to attenuate low frequencies
US10253727B2 (en) * 2016-05-12 2019-04-09 Rohr, Inc. Backside acoustic treatment of nacelle structural fittings
FR3054608B1 (fr) * 2016-07-29 2020-06-26 Safran Panneau acoustique pour une turbomachine et son procede de fabrication
US10273913B2 (en) * 2017-05-25 2019-04-30 The United States Of America, As Represented By The Secretary Of The Navy Multi-mode thermoacoustic actuator
US10436118B2 (en) 2017-06-19 2019-10-08 Rohr, Inc. Acoustic panel with folding chamber
FR3069579B1 (fr) * 2017-07-25 2019-08-30 Safran Aircraft Engines Panneau acoustique et ensemble propulsif associe
FR3070438B1 (fr) * 2017-08-25 2020-09-11 Safran Nacelles Structure alveolaire et dispositif d’attenuation acoustique pour nacelle d'ensemble propulsif d'aeronef
US10940955B2 (en) * 2017-11-27 2021-03-09 Rohr, Inc. Acoustic panel with structural septum
US11059559B2 (en) 2018-03-05 2021-07-13 General Electric Company Acoustic liners with oblique cellular structures
US11325718B2 (en) * 2018-05-02 2022-05-10 Rohr, Inc. Aircraft propulsion system assembly including one or more acoustic panels
US11047304B2 (en) 2018-08-08 2021-06-29 General Electric Company Acoustic cores with sound-attenuating protuberances
US11174815B2 (en) 2018-09-14 2021-11-16 Rohr, Inc. Inlet deep cavity flutter liner
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
AU2019386469A1 (en) * 2018-11-30 2021-05-20 Ashmere Holdings Pty Ltd Acoustic absorption
US11398214B2 (en) * 2018-12-14 2022-07-26 Rohr, Inc. Forming a structured panel with one or more structural reinforcements
US11414858B2 (en) 2018-12-19 2022-08-16 Rohr, Inc. Two-way acoustic panel
RU2716802C1 (ru) * 2019-02-20 2020-03-16 Государственное предприятие "Запорожское машиностроительное конструкторское бюро "Прогресс" имени академика А.Г. Ивченко" Оболочка турбореактивного двухконтурного двигателя с многослойными панелями и системой водоотвода
US11434819B2 (en) 2019-03-29 2022-09-06 General Electric Company Acoustic liners with enhanced acoustic absorption and reduced drag characteristics
FR3095671B1 (fr) * 2019-04-30 2022-07-29 Safran Aircraft Engines Intégration d’un amortisseur de flottement fan dans un carter moteur
FR3098143A1 (fr) * 2019-07-05 2021-01-08 Airbus Operations Revêtement insonorisant comportant une structure alvéolaire formée de bandes longitudinales formant des résonateurs de Helmholtz et des cavités intermédiaires traitant des plages acoustiques différentes
US11929053B2 (en) 2019-09-11 2024-03-12 The Hong Kong University Of Science And Technology Broadband sound absorber based on inhomogeneous-distributed Helmholtz resonators with extended necks
FR3100918A1 (fr) * 2019-09-12 2021-03-19 Safran Nacelles Panneau acoustique pour un ensemble propulsif d’aeronef, et son procede de fabrication
FR3101723B1 (fr) * 2019-10-08 2022-07-22 Safran Nacelles Panneau d’atténuation acoustique pour onde basses fréquences
FR3105553B1 (fr) * 2019-12-20 2022-01-21 Airbus Operations Sas Système de traitement acoustique à au moins deux degrés de liberté comportant un revêtement quart d’onde permettant le passage d’ondes acoustiques dans un résonateur à mode de cavité
US11560847B2 (en) * 2020-04-07 2023-01-24 Rohr, Inc. Transpirationally cooled exhaust center body for an aircraft propulsion system
RU203213U1 (ru) * 2020-07-08 2021-03-26 Государственное предприятие "Запорожское машиностроительное конструкторское бюро "Прогресс" имени академика А.Г. Ивченко Звукопоглощающая конструкция для тракта турбореактивного двухконтурного двигателя
US11566564B2 (en) * 2020-07-08 2023-01-31 Raytheon Technologies Corporation Acoustically treated panels
RU2745127C1 (ru) * 2020-07-14 2021-03-22 Государственное предприятие "Запорожское машиностроительное конструкторское бюро "Прогресс" имени академика А.Г. Ивченко" Многослойная звукопоглощающая конструкция двухконтурного турбореактивного двигателя
US11668236B2 (en) 2020-07-24 2023-06-06 General Electric Company Acoustic liners with low-frequency sound wave attenuating features
EP3945175B1 (en) * 2020-07-30 2023-08-30 Z LAB s.r.l. Panel
CN114278459B (zh) * 2020-09-28 2023-01-13 中国航发商用航空发动机有限责任公司 航空发动机、降噪声衬及其声衬孔板
US20220153210A1 (en) * 2020-11-19 2022-05-19 Molded Acoustical Products Of Easton, Inc. Lightweight perforated films and their use in acoustical insulators for increased sound absorption
US11970992B2 (en) 2021-06-03 2024-04-30 General Electric Company Acoustic cores and tools and methods for forming the same
FR3128778A1 (fr) * 2021-11-04 2023-05-05 Airbus Operations Module assurant une atténuation d’ondes acoustiques et un échange thermique
US11965425B2 (en) 2022-05-31 2024-04-23 General Electric Company Airfoil for a turbofan engine
US20240110521A1 (en) * 2022-10-03 2024-04-04 General Electric Company Circumferentially varying fan casing treatments for reducing fan noise effects
US20240117768A1 (en) * 2022-10-03 2024-04-11 General Electric Company Circumferentially varying fan casing treatments for reducing fan noise effects

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106587A (en) * 1976-07-02 1978-08-15 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Sound-suppressing structure with thermal relief
GB2038410B (en) * 1978-12-27 1982-11-17 Rolls Royce Acoustic lining utilising resonance
GB2049887B (en) * 1979-05-23 1982-12-01 Coal Industry Patents Ltd Acoustic liner for attenuating noise
JP3158876B2 (ja) * 1994-07-19 2001-04-23 日産自動車株式会社 遮音壁構造
FR2752392B1 (fr) * 1996-08-14 1999-04-23 Hispano Suiza Sa Panneau sandwich en nid d'abeille ventile et procede de ventilation d'un tel panneau
US5923003A (en) * 1996-09-09 1999-07-13 Northrop Grumman Corporation Extended reaction acoustic liner for jet engines and the like
US5912442A (en) * 1997-07-02 1999-06-15 Trw Inc. Structure having low acoustically-induced vibration response
FR2775216B1 (fr) * 1998-02-26 2000-07-13 Snecma Panneau insonorisant et procede de realisation
GB0016149D0 (en) * 2000-06-30 2000-08-23 Short Brothers Plc A noise attenuation panel
US7047725B2 (en) * 2003-05-28 2006-05-23 Rohr, Inc. Assembly and method for aircraft engine noise reduction
US20060169532A1 (en) * 2005-02-03 2006-08-03 Patrick William P Acoustic liner with nonuniform impedance
FR2915522A1 (fr) 2007-04-30 2008-10-31 Airbus France Sas Panneau acoustique a caracteristique acoustique variable

Also Published As

Publication number Publication date
CA2799543C (fr) 2018-07-03
EP2572093A2 (fr) 2013-03-27
US20130142624A1 (en) 2013-06-06
BR112012029277B1 (pt) 2020-12-22
RU2578768C2 (ru) 2016-03-27
CN103038484B (zh) 2016-04-20
CN103038484A (zh) 2013-04-10
CA2799543A1 (fr) 2011-11-24
US9546602B2 (en) 2017-01-17
FR2960334A1 (fr) 2011-11-25
RU2012154906A (ru) 2014-06-27
EP2572093B1 (fr) 2021-07-14
WO2011144842A2 (fr) 2011-11-24
WO2011144842A3 (fr) 2012-07-05
FR2960334B1 (fr) 2012-08-03

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 12/05/2011, OBSERVADAS AS CONDICOES LEGAIS.