WO2003106263A8 - An acoustic liner, use of such a liner and method for manufacturing an acoustic liner - Google Patents

An acoustic liner, use of such a liner and method for manufacturing an acoustic liner

Info

Publication number
WO2003106263A8
WO2003106263A8 PCT/SE2003/000670 SE0300670W WO03106263A8 WO 2003106263 A8 WO2003106263 A8 WO 2003106263A8 SE 0300670 W SE0300670 W SE 0300670W WO 03106263 A8 WO03106263 A8 WO 03106263A8
Authority
WO
WIPO (PCT)
Prior art keywords
liner
acoustic liner
acoustic
manufacturing
top sheet
Prior art date
Application number
PCT/SE2003/000670
Other languages
French (fr)
Other versions
WO2003106263A1 (en
Inventor
Sohan Sarin
Pontus Nordin
Original Assignee
Saab Ab
Sohan Sarin
Pontus Nordin
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 Saab Ab, Sohan Sarin, Pontus Nordin filed Critical Saab Ab
Priority to US10/517,495 priority Critical patent/US20060060421A1/en
Priority to EP03723564A priority patent/EP1515888A1/en
Priority to AU2003230494A priority patent/AU2003230494A1/en
Publication of WO2003106263A1 publication Critical patent/WO2003106263A1/en
Publication of WO2003106263A8 publication Critical patent/WO2003106263A8/en

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
    • 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
    • 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

Abstract

The present invention relates to an acoustic liner (1) arranged to attenuate sound. The acoustic liner (1) comprises a top sheet (5) having substantially linear characteristics and a liner core (2) or cavity. The top sheet (5) comprises a layer (3) of a metallic foam. The invention also relates to the use of said acoustic liner in a hot stream environment such as the outlet of an aircraft engine, and to the manufacture of an acoustic liner.
PCT/SE2003/000670 2002-06-12 2003-04-25 An acoustic liner, use of such a liner and method for manufacturing an acoustic liner WO2003106263A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US10/517,495 US20060060421A1 (en) 2002-06-12 2003-04-25 Acoustic liner use of such a liner and method for manufacturing an acoustic liner
EP03723564A EP1515888A1 (en) 2002-06-12 2003-04-25 An acoustic liner, use of such a liner and method for manufacturing an acoustic liner
AU2003230494A AU2003230494A1 (en) 2002-06-12 2003-04-25 An acoustic liner, use of such a liner and method for manufacturing an acoustic liner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0201790A SE525812C2 (en) 2002-06-12 2002-06-12 Acoustic lining, use of a lining and ways of producing an acoustic lining
SE0201790-3 2002-06-12

Publications (2)

Publication Number Publication Date
WO2003106263A1 WO2003106263A1 (en) 2003-12-24
WO2003106263A8 true WO2003106263A8 (en) 2005-03-10

Family

ID=20288160

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2003/000670 WO2003106263A1 (en) 2002-06-12 2003-04-25 An acoustic liner, use of such a liner and method for manufacturing an acoustic liner

Country Status (5)

Country Link
US (1) US20060060421A1 (en)
EP (1) EP1515888A1 (en)
AU (1) AU2003230494A1 (en)
SE (1) SE525812C2 (en)
WO (1) WO2003106263A1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2865309B1 (en) * 2004-01-15 2006-09-08 Hurel Hispano PERFORATED SKIN FOR ACOUSTIC ELEMENT, ACOUSTIC ELEMENT AND METHOD OF MANUFACTURE
US20060169532A1 (en) * 2005-02-03 2006-08-03 Patrick William P Acoustic liner with nonuniform impedance
US20060169533A1 (en) * 2005-02-03 2006-08-03 Patrick William P Acoustic liner with a nonuniform depth backwall
DE102006049826A1 (en) * 2006-10-23 2008-04-24 Robert Bosch Gmbh Protection device, especially for hand-held machine tool, has disk-shaped rotary tool and base body on which is arranged energy absorption element
FR2925208B1 (en) * 2007-12-14 2016-07-01 Eurocopter France ABSORBENT STRUCTURE FOR ATTENUATING NOISE GENERATED IN PARTICULAR BY A ROTOR AND FAIRING COMPRISING SUCH A STRUCTURE
DE102008017357B4 (en) * 2008-04-04 2014-01-16 Airbus Operations Gmbh Acoustically optimized cabin wall element and its use
US9938931B2 (en) * 2008-12-23 2018-04-10 General Electric Company Combined surface cooler and acoustic absorber for turbomachines
DE102008037143A1 (en) * 2008-08-08 2010-02-11 Airbus Deutschland Gmbh Insulation structure for thermal and acoustic insulation of an aircraft
TWI651455B (en) * 2009-01-14 2019-02-21 Kuraray Co., Ltd Sound insulation board, sound insulation structure and sound insulation method
US7913813B1 (en) * 2009-10-21 2011-03-29 The Boeing Company Noise shield for a launch vehicle
JP5650429B2 (en) * 2010-04-06 2015-01-07 株式会社荏原製作所 Rotating electric machine
US8047329B1 (en) * 2010-08-13 2011-11-01 Rohr, Inc. System and method for noise suppression
JP5693293B2 (en) * 2011-02-25 2015-04-01 三菱重工業株式会社 Combustor
US9200537B2 (en) * 2011-11-09 2015-12-01 Pratt & Whitney Canada Corp. Gas turbine exhaust case with acoustic panels
US10336433B2 (en) * 2015-03-09 2019-07-02 The Boeing Company Fused porogen process for acoustic septa fabrication
US10399117B2 (en) 2016-04-12 2019-09-03 United Technologies Corporation Method of making light weight component with internal metallic foam and polymer reinforcement
US10619949B2 (en) 2016-04-12 2020-04-14 United Technologies Corporation Light weight housing for internal component with integrated thermal management features and method of making
US10323325B2 (en) 2016-04-12 2019-06-18 United Technologies Corporation Light weight housing for internal component and method of making
US10302017B2 (en) * 2016-04-12 2019-05-28 United Technologies Corporation Light weight component with acoustic attenuation and method of making
US10724131B2 (en) 2016-04-12 2020-07-28 United Technologies Corporation Light weight component and method of making
US10335850B2 (en) 2016-04-12 2019-07-02 United Technologies Corporation Light weight housing for internal component and method of making
CN112069657B (en) * 2020-08-13 2024-03-12 株洲时代新材料科技股份有限公司 Pipeline acoustic liner design method and pipeline acoustic liner suitable for air flow environment
CN114321024B (en) * 2021-12-31 2024-03-26 广东美的白色家电技术创新中心有限公司 Control method and control device of noise reduction device, storage medium and noise reduction device

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300978A (en) * 1979-07-06 1981-11-17 Rohr Industries, Inc. Bonding tool for venting honeycomb noise attenuation structure during manufacture
US4291080A (en) * 1980-03-31 1981-09-22 Vought Corporation Sound attenuating structural panel
US4433021A (en) * 1982-09-22 1984-02-21 Rohr Industries, Inc. Sound attenuation sandwich panel including barrier material for corrosion control
US4817756A (en) * 1985-08-26 1989-04-04 Aeronautic Development Corp. Ltd. Quiet nacelle system and hush kit
US4828932A (en) * 1986-05-12 1989-05-09 Unix Corporation Ltd. Porous metallic material, porous structural material and porous decorative sound absorbing material, and methods for manufacturing the same
DE8700264U1 (en) * 1987-01-07 1988-05-11 Irbit Research + Consulting Ag, Freiburg/Fribourg, Ch
GB9101355D0 (en) * 1991-01-22 1991-03-06 Short Brothers Plc Noise attentuation panel
US5175401A (en) * 1991-03-18 1992-12-29 Grumman Aerospace Corporation Segmented resistance acoustic attenuating liner
US5494737A (en) * 1992-12-28 1996-02-27 Mitsui Toatsu Chemicals, Inc. Ceiling material for vehicles and production process thereof
US5594216A (en) * 1994-11-29 1997-01-14 Lockheed Missiles & Space Co., Inc. Jet engine sound-insulation structure
US5766395A (en) * 1995-08-28 1998-06-16 Johns Manville International, Inc. Method of making self-supporting composite structures
US5923003A (en) * 1996-09-09 1999-07-13 Northrop Grumman Corporation Extended reaction acoustic liner for jet engines and the like
US6176964B1 (en) * 1997-10-20 2001-01-23 Vought Aircraft Industries, Inc. Method of fabricating an acoustic liner
US5962107A (en) * 1997-10-29 1999-10-05 Johns Manville International, Inc. Perforated cellular sound absorption material
CH692731A5 (en) * 1998-01-09 2002-10-15 Rieter Automotive Int Ag Ultra-light, sound and shock absorbing kit.
US6182787B1 (en) * 1999-01-12 2001-02-06 General Electric Company Rigid sandwich panel acoustic treatment
US6209680B1 (en) * 2000-04-10 2001-04-03 Jay Perdue Acoustic diffuser panels and wall assembly comprised thereof
WO2003046358A1 (en) * 2001-11-21 2003-06-05 Dunlop Aerospace Limited Noise attenuator arrangement
US7017706B2 (en) * 2001-12-21 2006-03-28 Honeywell International, Inc. Turbine noise absorber
GB0223697D0 (en) * 2002-10-14 2002-11-20 Rolls Royce Plc Acoustic liner for gas turbine engineers

Also Published As

Publication number Publication date
SE0201790L (en) 2003-12-13
WO2003106263A1 (en) 2003-12-24
US20060060421A1 (en) 2006-03-23
SE0201790D0 (en) 2002-06-12
EP1515888A1 (en) 2005-03-23
SE525812C2 (en) 2005-05-03
AU2003230494A1 (en) 2003-12-31

Similar Documents

Publication Publication Date Title
WO2003106263A8 (en) An acoustic liner, use of such a liner and method for manufacturing an acoustic liner
CA2483709A1 (en) Gradient density padding material and method of making same
GB0212030D0 (en) Method of producing ceramic laminates,laminated electronic parts and method of producing the same
GB0623305D0 (en) Layer system
TW200610857A (en) Sound absorptive multilayer composite
WO2004011321A3 (en) Composite metal foam damping/reinforcement structure
WO2004018919A3 (en) Process for enhancing material properties and materials so enhanced
WO2008002430A3 (en) Wetsuit and associated method of manufacture
PL366245A1 (en) Decorative laminate assembly and method of producing same
RS59404A (en) Method for producing scopine esters
PL350898A1 (en) Gas turbine engine disk
MY140920A (en) An acoustic tile
GB0121363D0 (en) Engine muffler and method of manufacturing the same
WO2007062781A3 (en) Woven laminate as a covering for sound absorption of input and output sound absorbers and method for producing an acoustic isolation unit
TW200802544A (en) Composite substrate and method for making the same
WO2006018295A3 (en) Nanotransport system having a dendritic architecture
AU2003209581A1 (en) A mattress cover and a method of manufacturing the same, as well as a mattress
ATE389535T1 (en) METHOD FOR PRODUCING A HEAT SETABLE LAMINATE
EP1453354A4 (en) Electroacoustic transducer and process for producing the same
DE69628563D1 (en) FLUORINATED FILM, LAMINATE MADE THEREOF AND METHOD FOR PRODUCING THE LAMINATE
HK1065525A1 (en) Fibrous solid carbon manifold assembly and method for producing the same
ATA6102002A (en) LIGHTWEIGHT COMPONENT, METHOD AND DEVICE FOR THE PRODUCTION THEREOF
AU2003213718A1 (en) Method of producing antigens
AU2003245625A1 (en) Strand-reinforced elastomeric composite laminates, garments including the laminates, and methods of making the laminates
WO2005051092A3 (en) Method of decreasing fat deposits and body weight in mammals and birds

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
ENP Entry into the national phase

Ref document number: 2006060421

Country of ref document: US

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 10517495

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2003723564

Country of ref document: EP

CFP Corrected version of a pamphlet front page
CR1 Correction of entry in section i

Free format text: IN PCT GAZETTE 52/2003 ADD "DECLARATION UNDER RULE 4.17: - AS TO THE APPLICANT S ENTITLEMENT TO CLAIM THE PRIORITY OF THE EARLIER APPLICATION (RULE 4.17(III)) FOR ALL DESIGNATIONS."

WWP Wipo information: published in national office

Ref document number: 2003723564

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 10517495

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP