BR112014026353A2 - estrutura acústica com supressão de largura de banda aumentada - Google Patents

estrutura acústica com supressão de largura de banda aumentada

Info

Publication number
BR112014026353A2
BR112014026353A2 BR112014026353A BR112014026353A BR112014026353A2 BR 112014026353 A2 BR112014026353 A2 BR 112014026353A2 BR 112014026353 A BR112014026353 A BR 112014026353A BR 112014026353 A BR112014026353 A BR 112014026353A BR 112014026353 A2 BR112014026353 A2 BR 112014026353A2
Authority
BR
Brazil
Prior art keywords
acoustic
acoustic structure
increased bandwidth
bandwidth suppression
increased
Prior art date
Application number
BR112014026353A
Other languages
English (en)
Inventor
Ayle Earl
Original Assignee
Hexcel Corp
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 Hexcel Corp filed Critical Hexcel Corp
Publication of BR112014026353A2 publication Critical patent/BR112014026353A2/pt

Links

Classifications

    • 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
    • B64D29/00—Power-plant nacelles, fairings, or cowlings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4957—Sound device making
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

resumo “estrutura acústica com supressão de largura de banda aumentada” a largura de banda ou faixa acústica de uma nacela ou outro tipo de estrutura acústica é aumentada por meio do acoplamento acústico de células alveolares juntas para formar pares de células acústicas que possuem um comprimento acústico ou ressoador efetivo que é de até duas vezes o da célula acústica tomada isoladamente.
BR112014026353A 2012-05-08 2013-05-03 estrutura acústica com supressão de largura de banda aumentada BR112014026353A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/466,232 US8651233B2 (en) 2012-05-08 2012-05-08 Acoustic structure with increased bandwidth suppression
PCT/US2013/039458 WO2014021963A2 (en) 2012-05-08 2013-05-03 Acoustic structure with increased bandwidth suppression

Publications (1)

Publication Number Publication Date
BR112014026353A2 true BR112014026353A2 (pt) 2017-06-27

Family

ID=49547780

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112014026353A BR112014026353A2 (pt) 2012-05-08 2013-05-03 estrutura acústica com supressão de largura de banda aumentada

Country Status (8)

Country Link
US (2) US8651233B2 (pt)
EP (1) EP2847755B1 (pt)
JP (1) JP6200945B2 (pt)
CN (1) CN104246869B (pt)
BR (1) BR112014026353A2 (pt)
CA (1) CA2868310C (pt)
RU (1) RU2596960C2 (pt)
WO (1) WO2014021963A2 (pt)

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ITTO20111124A1 (it) * 2011-12-09 2013-06-10 Alenia Aermacchi Spa Elemento per l'assorbimento acustico, in particolare destinato ad essere montato su componenti di aeromobili, quali gondole motori.
US9752494B2 (en) 2013-03-15 2017-09-05 Kohler Co. Noise suppression systems
US9334059B1 (en) 2013-06-05 2016-05-10 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Acoustic panel liner for an engine nacelle
US10160533B2 (en) * 2014-09-23 2018-12-25 The Boeing Company Aircraft cabin pressure regulating subfloor
GB2531808A (en) 2014-11-03 2016-05-04 Short Brothers Plc Methods and precursors for manufacturing a perforated composite part
US9469985B1 (en) 2015-05-11 2016-10-18 Hexcel Corporation Acoustic structures with multiple degrees of freedom
TWI625446B (zh) * 2015-06-18 2018-06-01 德克薩斯大學體系董事會 用於抑制來自液體中的源的聲能的共振器、共振器陣列和雜訊消減系統
US9708930B2 (en) * 2015-12-09 2017-07-18 Rohr, Inc. Multi-degree of freedom acoustic panel
DE102016203211A1 (de) * 2016-02-29 2017-08-31 Airbus Operations Gmbh Schalldämpfendes Luftführungsteil
US9620102B1 (en) 2016-05-02 2017-04-11 Hexcel Corporation Stepped acoustic structures with multiple degrees of freedom
US9741331B1 (en) * 2016-06-01 2017-08-22 The Boeing Company Sound-attenuating composite structure
US11426967B2 (en) * 2016-06-30 2022-08-30 3M Innovative Properties Company Cushioning structures including interconnected cells
CN106328115B (zh) * 2016-08-22 2019-10-11 东南大学 基于分形结构的低频隔声人工材料
CN106968357A (zh) * 2017-04-06 2017-07-21 上海声望声学科技股份有限公司 空间延展高效平面吸声体
FR3065473B1 (fr) * 2017-04-25 2019-04-19 Airbus Operations Panneau pour le traitement acoustique comprenant des alveoles contenant chacune une pluralite de conduits
US10626799B2 (en) * 2017-07-19 2020-04-21 Hexcel Corporation Flexible acoustic honeycomb
FR3070529B1 (fr) * 2017-08-31 2019-12-20 Safran Nacelles Panneau acoustique a resonateurs pour volume reduit
JP7194321B2 (ja) * 2017-12-19 2022-12-22 佐藤工業株式会社 トンネル発破音の低減方法及び低減装置
FR3079812A1 (fr) * 2018-04-10 2019-10-11 Airbus Operations Panneau d'attenuation acoustique pour aeronef presentant des proprietes d'absorption acoustique combinees.
FR3080151B1 (fr) * 2018-04-13 2020-11-20 Safran Aircraft Engines Panneau de traitement acoustique pour turboreacteur
CN108759948A (zh) * 2018-08-31 2018-11-06 四川菲罗米特仪表有限公司 一种气体超声流量计的内置整流器
US11353240B2 (en) 2018-10-02 2022-06-07 United States Of America As Represented By The Administrator Of Nasa Low drag, variable-depth acoustic liner
WO2020095207A1 (en) * 2018-11-09 2020-05-14 3M Innovative Properties Company Acoustic panels and structures including the same
US11123948B2 (en) 2018-11-13 2021-09-21 Epic Aircraft, LLC Method for forming a composite structure
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
FR3101723B1 (fr) * 2019-10-08 2022-07-22 Safran Nacelles Panneau d’atténuation acoustique pour onde basses fréquences
US11437008B2 (en) 2019-11-12 2022-09-06 Hexcel Corporation Acoustic barrier caps in acoustic honeycomb
US11812221B2 (en) 2020-01-21 2023-11-07 Adbm Corp. System and method for simultaneously attenuating high-frequency sounds and amplifying low-frequency sounds produced by underwater acoustic pressure source
RU2767483C1 (ru) * 2021-05-14 2022-03-17 Акционерное общество "Объединенная двигателестроительная корпорация" (АО "ОДК") Звукопоглощающая конструкция для авиационного двигателя
US11970992B2 (en) * 2021-06-03 2024-04-30 General Electric Company Acoustic cores and tools and methods for forming the same

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US3769767A (en) * 1971-07-09 1973-11-06 Short Brothers & Harland Ltd Composite panel structures
US4001473A (en) * 1976-02-19 1977-01-04 Rohr Industries, Inc. Sound attenuating structural honeycomb sandwich material
US4265955A (en) 1978-05-01 1981-05-05 The Boeing Company Honeycomb core with internal septum and method of making same
US4421201A (en) * 1981-09-29 1983-12-20 The Boeing Company High efficiency broadband acoustic resonator and absorption panel
GB8817669D0 (en) * 1988-07-25 1988-09-01 Short Brothers Ltd Means for attenuating sound energy
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US8413761B2 (en) 2005-04-04 2013-04-09 Hexcel Corporation Acoustic honeycomb with perforated septum caps
FR2933224B1 (fr) * 2008-06-25 2010-10-29 Aircelle Sa Panneau accoustique pour une tuyere d'ejection
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ITTO20111124A1 (it) * 2011-12-09 2013-06-10 Alenia Aermacchi Spa Elemento per l'assorbimento acustico, in particolare destinato ad essere montato su componenti di aeromobili, quali gondole motori.

Also Published As

Publication number Publication date
CA2868310C (en) 2016-02-16
CN104246869B (zh) 2017-05-24
WO2014021963A3 (en) 2014-08-14
RU2596960C2 (ru) 2016-09-10
US20140131136A1 (en) 2014-05-15
EP2847755A2 (en) 2015-03-18
CA2868310A1 (en) 2014-02-06
JP6200945B2 (ja) 2017-09-20
RU2014149135A (ru) 2016-06-27
JP2015520871A (ja) 2015-07-23
CN104246869A (zh) 2014-12-24
US8651233B2 (en) 2014-02-18
WO2014021963A2 (en) 2014-02-06
EP2847755B1 (en) 2021-06-30
US20130299274A1 (en) 2013-11-14
US8857566B2 (en) 2014-10-14

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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]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time