BRPI0809830A2 - Painel acústico compreendendo ima camada refletora e nacela de aeronave - Google Patents

Painel acústico compreendendo ima camada refletora e nacela de aeronave

Info

Publication number
BRPI0809830A2
BRPI0809830A2 BRPI0809830-1A2A BRPI0809830A BRPI0809830A2 BR PI0809830 A2 BRPI0809830 A2 BR PI0809830A2 BR PI0809830 A BRPI0809830 A BR PI0809830A BR PI0809830 A2 BRPI0809830 A2 BR PI0809830A2
Authority
BR
Brazil
Prior art keywords
nacela
aircraft
reflecting layer
acoustic panel
wave
Prior art date
Application number
BRPI0809830-1A2A
Other languages
English (en)
Inventor
Stephane Lidoine
Original Assignee
Airbus France
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 Airbus France filed Critical Airbus France
Publication of BRPI0809830A2 publication Critical patent/BRPI0809830A2/pt

Links

Classifications

    • 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
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • 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
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/045—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for noise suppression
    • 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
    • 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
    • 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
    • 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)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Building Environments (AREA)
  • Transducers For Ultrasonic Waves (AREA)
BRPI0809830-1A2A 2007-04-30 2008-04-24 Painel acústico compreendendo ima camada refletora e nacela de aeronave BRPI0809830A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0754783A FR2915522A1 (fr) 2007-04-30 2007-04-30 Panneau acoustique a caracteristique acoustique variable
PCT/FR2008/050746 WO2008152259A2 (fr) 2007-04-30 2008-04-24 Panneau acoustique a caracteristique acoustique variable

Publications (1)

Publication Number Publication Date
BRPI0809830A2 true BRPI0809830A2 (pt) 2014-10-07

Family

ID=38729040

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0809830-1A2A BRPI0809830A2 (pt) 2007-04-30 2008-04-24 Painel acústico compreendendo ima camada refletora e nacela de aeronave

Country Status (10)

Country Link
US (1) US7963362B2 (pt)
EP (1) EP2142779B1 (pt)
JP (1) JP2010526231A (pt)
CN (1) CN101675226B (pt)
AT (1) ATE522712T1 (pt)
BR (1) BRPI0809830A2 (pt)
CA (1) CA2685287A1 (pt)
FR (1) FR2915522A1 (pt)
RU (1) RU2467191C2 (pt)
WO (1) WO2008152259A2 (pt)

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2459844B (en) * 2008-05-06 2011-01-19 Rolls Royce Plc Fan section
BRPI0913579A2 (pt) * 2008-05-22 2015-11-24 3M Innovative Properties Co estrutura multicamada de absorção de som compreendendo camada de malha
GB2468484A (en) 2009-03-09 2010-09-15 Aircelle Ltd An acoustic attenuation member for an aircraft
DE102009037956B4 (de) * 2009-08-18 2024-06-06 MTU Aero Engines AG Turbinenaustrittsgehäuse
NL2003697C2 (nl) * 2009-10-22 2011-04-26 Univ Twente Weg met geluid-diffractoren.
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
GB2478312B (en) 2010-03-02 2012-08-22 Gkn Aerospace Services Ltd Seamless acoustic liner
FR2960334B1 (fr) * 2010-05-19 2012-08-03 Snecma Panneau de traitement acoustique multicouches
US8708272B1 (en) * 2011-03-11 2014-04-29 The United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration Landing gear door liners for airframe noise reduction
US9227719B2 (en) 2011-03-11 2016-01-05 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Reactive orthotropic lattice diffuser for noise reduction
CN102777261B (zh) * 2011-05-13 2016-02-10 中国商用飞机有限责任公司 进气风门用基板以及包括该基板的进气风门
US8863893B2 (en) 2011-11-17 2014-10-21 Spirit Aerosystems, Inc. Engine inlet varying impedance acoustic liner section
FR2985287B1 (fr) * 2012-01-04 2018-02-23 Safran Nacelles Structure acoustique alveolaire pour turboreacteur et turboreacteur incorporant au moins une telle structure
CN104583685B (zh) 2012-07-12 2018-05-15 特灵国际有限公司 对气流进行减速的方法和装置
US9168716B2 (en) * 2012-09-14 2015-10-27 The Boeing Company Metallic sandwich structure having small bend radius
US9752494B2 (en) * 2013-03-15 2017-09-05 Kohler Co. Noise suppression systems
WO2014197035A2 (en) 2013-03-15 2014-12-11 United Technologies Corporation Acoustic liner with varied properties
US9476359B2 (en) 2014-04-11 2016-10-25 Rohr, Inc. Acoustic liner
US9592918B2 (en) 2014-06-23 2017-03-14 Rohr, Inc. Acoustic liner
US20160215700A1 (en) * 2015-01-23 2016-07-28 Rohr, Inc. Inner fixed structure acoustic panel with directional perforations
WO2016190753A1 (en) 2015-05-25 2016-12-01 Dotterel Technologies Limited A shroud for an aircraft
CN105114185A (zh) * 2015-08-26 2015-12-02 成都博世德能源科技股份有限公司 一种用于低温环境的降噪型燃气轮机进气系统
CN105089800A (zh) * 2015-08-26 2015-11-25 成都博世德能源科技股份有限公司 一种降噪型燃气轮机进气系统
US9764818B2 (en) 2016-02-10 2017-09-19 Rohr, Inc. Structural, cellular core with corrugated support walls
US9761216B2 (en) 2016-02-10 2017-09-12 Rohr, Inc. Acoustic panel with angled corrugated core structures
EP3465008B1 (en) * 2016-07-25 2021-08-25 Siemens Energy Global GmbH & Co. KG Resonator rings for a gas turbine engine
FR3054607B1 (fr) * 2016-07-29 2020-02-28 Safran Nacelles Panneau d’attenuation acoustique pour ensemble propulsif d’aeronef et ensemble propulsif comportant un tel panneau
CN108124210A (zh) * 2016-11-26 2018-06-05 王永明 一种入耳式耳机
US10415471B2 (en) * 2016-11-30 2019-09-17 United Technologies Corporation Variable volume acoustic damper
US10414481B2 (en) 2017-02-14 2019-09-17 Rohr, Inc. Method for forming a structural panel
FR3065472B1 (fr) * 2017-04-25 2019-05-03 Airbus Operations Panneau pour le traitement acoustique comprenant une structure acoustiquement resistive poreuse comportant des canaux de connexion
US10525636B2 (en) 2017-06-19 2020-01-07 Rohr, Inc. Process for forming a fiber-reinforced composite structure
WO2019022618A1 (en) 2017-07-24 2019-01-31 Dotterel Technologies Limited ENVELOPE
WO2019021477A1 (ja) * 2017-07-28 2019-01-31 イビデン株式会社 吸音部材、車両用部品及び自動車
US10695986B2 (en) 2017-08-22 2020-06-30 Rohr, Inc. Method for forming a structural panel
FR3074223A1 (fr) * 2017-11-28 2019-05-31 Airbus Operations Panneau d’attenuation acoustique pour aeronef.
US11059559B2 (en) 2018-03-05 2021-07-13 General Electric Company Acoustic liners with oblique cellular structures
US10906659B2 (en) 2018-04-03 2021-02-02 Rohr, Inc. Structured panel with structural reinforcement(s)
US11325718B2 (en) * 2018-05-02 2022-05-10 Rohr, Inc. Aircraft propulsion system assembly including one or more acoustic panels
AU2019271730B2 (en) 2018-05-16 2024-09-26 Dotterel Technologies Limited Systems and methods for audio capture
CN108954433A (zh) * 2018-07-14 2018-12-07 佛山市云米电器科技有限公司 一种通孔按排列区域分布的多频率噪声过滤油烟机
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
CN109592053A (zh) * 2018-11-02 2019-04-09 中国航空工业集团公司西安飞机设计研究所 一种飞机辅助动力装置的进气道结构
AU2019386469B2 (en) * 2018-11-30 2025-10-30 Ashmere Holdings Pty Ltd Acoustic absorption
US11242822B2 (en) 2018-12-14 2022-02-08 Rohr, Inc. Structured panel with multi-panel structure(s)
US11398214B2 (en) 2018-12-14 2022-07-26 Rohr, Inc. Forming a structured panel with one or more structural reinforcements
US11434819B2 (en) 2019-03-29 2022-09-06 General Electric Company Acoustic liners with enhanced acoustic absorption and reduced drag characteristics
US11572850B2 (en) 2019-06-04 2023-02-07 Rohr, Inc. Acoustic panel with one or more structural stiffeners
CN110595052B (zh) * 2019-09-20 2022-03-18 宁波源海博创科技有限公司 一种适应进风参数性能可调优的消声器
US12109793B2 (en) * 2019-11-21 2024-10-08 Rtx Corporation Composite skins having variable hole sizes and shapes formed using photomachining
DE102020201417A1 (de) * 2020-02-05 2021-08-05 kopter germany GmbH Rotorsystem für ein Fluggerät
CN111706433B (zh) * 2020-05-11 2022-02-22 中国航发沈阳发动机研究所 一种声衬组合结构
US11668236B2 (en) 2020-07-24 2023-06-06 General Electric Company Acoustic liners with low-frequency sound wave attenuating features
US11688378B2 (en) * 2020-07-31 2023-06-27 Toyota Motor Engineering & Manufacturing North America, Inc. Interlocking blocks for building customizable resonant sound absorbing structures
NL2026520B1 (en) * 2020-09-23 2022-05-24 Univ Delft Tech An aircraft wing provided with a trailing edge region
US11828234B2 (en) 2020-11-06 2023-11-28 General Electric Company Acoustic liner for a heat engine
US11970992B2 (en) 2021-06-03 2024-04-30 General Electric Company Acoustic cores and tools and methods for forming the same
US11970957B2 (en) * 2021-08-19 2024-04-30 General Electric Company Acoustic turbofan airfoil apparatus
US12142253B2 (en) 2021-10-05 2024-11-12 General Electric Company Solid adhesive film for acoustic liner and method
FR3129241A1 (fr) * 2021-11-17 2023-05-19 Airbus Operations Peau poreuse pourvue d’une pluralité de bandes et panneau d’atténuation acoustique comprenant une telle peau poreuse.
FR3133372B1 (fr) * 2022-03-11 2025-03-14 Safran Seats Élément de mobilier muni d'un panneau composite atténuateur de bruit
US11965425B2 (en) 2022-05-31 2024-04-23 General Electric Company Airfoil for a turbofan engine
US12312969B2 (en) 2023-01-17 2025-05-27 General Electric Company Airfoils for turbofan engines
US20240328361A1 (en) * 2023-03-31 2024-10-03 Pratt & Whitney Canada Corp. Acoustic panel with non-linear variable percentage of open area
US12228037B1 (en) 2023-12-04 2025-02-18 General Electric Company Guide vane assembly with fixed and variable pitch inlet guide vanes
US12313021B1 (en) 2024-03-14 2025-05-27 General Electric Company Outer nacelle with inlet guide vanes and acoustic treatment

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU504001A1 (ru) * 1973-12-28 1976-02-25 Центральный Ордена Трудового Красного Знамени Научно-Исследовательский Автомобильный И Автомоторный Институт Звукопоглощающа пластина глушител шума двигател
CA1027002A (en) * 1974-08-30 1978-02-28 Horst W.W. Hehmann Phased treatment noise suppressor for acoustic duct applications
GB1490923A (en) * 1975-06-23 1977-11-02 Short Brothers & Harland Ltd Sound-absorbing structures
US4137992A (en) * 1976-12-30 1979-02-06 The Boeing Company Turbojet engine nozzle for attenuating core and turbine noise
DK142710B (da) * 1977-11-10 1980-12-29 Elektronikcentralen Lydabsorberende struktur.
US4291080A (en) * 1980-03-31 1981-09-22 Vought Corporation Sound attenuating structural panel
GB2076049B (en) 1980-05-17 1983-10-26 Rolls Royce Variable acoustic impedance lining
US5175401A (en) * 1991-03-18 1992-12-29 Grumman Aerospace Corporation Segmented resistance acoustic attenuating liner
US5979595A (en) * 1996-10-18 1999-11-09 New Philadelphia Fan Company Fan inlet flow controller
US5952621A (en) * 1997-04-16 1999-09-14 Gte Internetworking Incorporated Sound attenuation system and related method
US5912442A (en) * 1997-07-02 1999-06-15 Trw Inc. Structure having low acoustically-induced vibration response
SE515528C2 (sv) * 1999-12-07 2001-08-20 Saab Ab Anordning vid en akustisk absorbent
GB0016149D0 (en) * 2000-06-30 2000-08-23 Short Brothers Plc A noise attenuation panel
FR2817994B1 (fr) * 2000-12-08 2003-02-28 Eads Airbus Sa Panneau acoustique sandwich
FR2826168B1 (fr) 2001-06-19 2003-12-05 Eads Airbus Sa Procede de realisation d'une couche acoustiquement resistive renforcee, couche resistive ainsi obtenue et panneau utilisant une telle couche
RU2268384C1 (ru) * 2004-06-23 2006-01-20 Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения им. П.И. Баранова" Глушитель шума
US7267297B2 (en) * 2004-09-02 2007-09-11 The Boeing Company Integrated axially varying engine muffler, and associated methods and systems
US20060169533A1 (en) * 2005-02-03 2006-08-03 Patrick William P Acoustic liner with a nonuniform depth backwall
US20060169532A1 (en) * 2005-02-03 2006-08-03 Patrick William P Acoustic liner with nonuniform impedance
US7540354B2 (en) * 2006-05-26 2009-06-02 United Technologies Corporation Micro-perforated acoustic liner

Also Published As

Publication number Publication date
US20100133378A1 (en) 2010-06-03
RU2467191C2 (ru) 2012-11-20
CN101675226B (zh) 2013-06-12
US7963362B2 (en) 2011-06-21
CN101675226A (zh) 2010-03-17
ATE522712T1 (de) 2011-09-15
EP2142779B1 (fr) 2011-08-31
WO2008152259A3 (fr) 2009-02-12
EP2142779A2 (fr) 2010-01-13
RU2009144111A (ru) 2011-06-10
WO2008152259A2 (fr) 2008-12-18
JP2010526231A (ja) 2010-07-29
FR2915522A1 (fr) 2008-10-31
CA2685287A1 (fr) 2008-12-18

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: AIRBUS OPERATIONS SAS (FR)

B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]