CA971062A - Sound absorption structure - Google Patents

Sound absorption structure

Info

Publication number
CA971062A
CA971062A CA155,872A CA155872A CA971062A CA 971062 A CA971062 A CA 971062A CA 155872 A CA155872 A CA 155872A CA 971062 A CA971062 A CA 971062A
Authority
CA
Canada
Prior art keywords
sound absorption
absorption structure
sound
absorption
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.)
Expired
Application number
CA155,872A
Other versions
CA155872S (en
Inventor
Leslie S. Wirt
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.)
Lockheed Corp
Original Assignee
Lockheed Aircraft 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 Lockheed Aircraft Corp filed Critical Lockheed Aircraft Corp
Application granted granted Critical
Publication of CA971062A publication Critical patent/CA971062A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02Energy absorbers; Noise absorbers
    • F16L55/033Noise absorbers
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84Sound-absorbing elements
    • E04B1/86Sound-absorbing elements slab-shaped
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02KJET-PROPULSION PLANTS
    • F02K1/00Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/78Other construction of jet pipes
    • F02K1/82Jet pipe walls, e.g. liners
    • F02K1/827Sound absorbing structures or liners
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods 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
    • G10K11/16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/172Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B2001/742Use of special materials; Materials having special structures or shape
    • E04B2001/748Honeycomb materials
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84Sound-absorbing elements
    • E04B2001/8423Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8428Tray or frame type panels or blocks, with or without acoustical filling containing specially shaped acoustical bodies, e.g. funnels, egg-crates, fanfolds
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84Sound-absorbing elements
    • E04B2001/8423Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8433Tray or frame type panels or blocks, with or without acoustical filling with holes in their face
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00Aeronautics or air transport
    • Y02T50/60Efficient propulsion technologies, e.g. for aircraft
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149Honeycomb-like
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
CA155,872A 1971-11-08 1972-11-07 Sound absorption structure Expired CA971062A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19661671A 1971-11-08 1971-11-08

Publications (1)

Publication Number Publication Date
CA971062A true CA971062A (en) 1975-07-15

Family

ID=22726124

Family Applications (1)

Application Number Title Priority Date Filing Date
CA155,872A Expired CA971062A (en) 1971-11-08 1972-11-07 Sound absorption structure

Country Status (4)

Country Link
US (1) US3734234A (en)
AU (1) AU464771B2 (en)
CA (1) CA971062A (en)
GB (1) GB1369345A (en)

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US3887031A (en) * 1973-06-11 1975-06-03 Lockheed Aircraft Corp Dual-range sound absorber
US3920095A (en) * 1974-02-01 1975-11-18 Brunswick Corp Free flow sound attenuating device and method of using
FR2261872B1 (en) * 1974-02-26 1976-06-25 Snecma
US3948346A (en) * 1974-04-02 1976-04-06 Mcdonnell Douglas Corporation Multi-layered acoustic liner
US3955643A (en) * 1974-07-03 1976-05-11 Brunswick Corporation Free flow sound attenuating device and method of making
US3977492A (en) * 1975-01-09 1976-08-31 Acon, Inc. Acoustical material for use in association with noise generating machinery
FR2305556A1 (en) * 1975-03-24 1976-10-22 Louis Pierre Sound deadening wall alongside roads and railways - has cavities opening onto sound exposed surface and partly filled with sound deadening material
GB1490923A (en) * 1975-06-23 1977-11-02 Short Brothers & Harland Ltd Sound-absorbing structures
US4141433A (en) * 1976-06-04 1979-02-27 Lord Corporation Sound absorbing structure
US4282280A (en) * 1976-12-30 1981-08-04 Cook William H Jun Heat insulation for tanks at cryogenic and higher temperatures, using structural honeycomb with integral heat radiation shields
US4265955A (en) * 1978-05-01 1981-05-05 The Boeing Company Honeycomb core with internal septum and method of making same
US4257998A (en) * 1978-05-01 1981-03-24 The Boenig Company Method of making a cellular core with internal septum
US4243117A (en) * 1978-10-27 1981-01-06 Lord Corporation Sound absorbing structure
US4339018A (en) * 1978-10-27 1982-07-13 Lord Corporation Sound absorbing structure
US4291080A (en) * 1980-03-31 1981-09-22 Vought Corporation Sound attenuating structural panel
AT378306B (en) * 1983-08-29 1985-07-25 Akg Akustische Kino Geraete USE OF A BUNDLED LASER BEAM FOR PRODUCING AN ACOUSTIC FRICTION RESISTOR FOR ELECTROACOUSTIC TRANSDUCERS
FR2583446B2 (en) * 1985-05-31 1989-01-20 Vibrasonic DEVICE FOR ABSORBING SOUND WAVES
US4667768A (en) * 1986-05-01 1987-05-26 Lockheed Corporation Sound absorbing panel
US5250764A (en) * 1992-10-16 1993-10-05 The United States Of America As Represented By The Administrator Of The National Aeroneutics And Space Administration Consecutive plate acoustic suppressor apparatus and methods
US5310586A (en) * 1993-02-05 1994-05-10 Eldim, Inc. Angled I-beam honeycomb structure
SE506188C2 (en) * 1996-01-25 1997-11-17 Dale Edward Knipstein Sound absorbing element and method for making this element and use of the element
US5782082A (en) 1996-06-13 1998-07-21 The Boeing Company Aircraft engine acoustic liner
DE59709155D1 (en) * 1997-07-15 2003-02-20 Alstom Switzerland Ltd Device for damping combustion chamber vibrations
SE0003349D0 (en) * 2000-09-18 2000-09-18 Flaekt Ab sound absorber
EP2851526B1 (en) 2003-08-11 2018-05-23 Faurecia Emissions Control Technologies, Germany GmbH Exhaust Silencer
WO2005106840A1 (en) * 2004-04-30 2005-11-10 Kabushiki Kaisha Kobe Seiko Sho Porous sound absorbing structure
DE102004053383A1 (en) * 2004-11-02 2006-05-04 Eads Deutschland Gmbh Acoustic absorber for aircraft engines
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US7789194B2 (en) * 2007-04-20 2010-09-07 Cardinal Health 212, Inc. Acoustic attenuation chamber
CN101727894B (en) * 2010-01-08 2012-05-23 中国科学院声学研究所 Composite sound absorbing device with built-in resonant cavity
US8607925B2 (en) * 2010-07-20 2013-12-17 Hendrik David Gideonse Wedge-shaped acoustic diffuser and method of installation
FR2980297B1 (en) 2011-09-21 2015-09-04 Aircelle Sa IMPLEMENTATION OF ACOUSTIC INTERMEDIATE SKIN
DE102011120979A1 (en) * 2011-12-13 2013-06-13 Rolls-Royce Deutschland Ltd & Co Kg Acoustic absorber
FR2989814B1 (en) * 2012-04-20 2015-05-01 Aircelle Sa THIN ACOUSTIC WAVE ABSORPTION PANEL EMITTED BY AN AIRCRAFT NACELLE TURBOJET, AND NACELLE EQUIPPED WITH SUCH A PANEL
US9752494B2 (en) * 2013-03-15 2017-09-05 Kohler Co. Noise suppression systems
US9068345B2 (en) * 2013-08-12 2015-06-30 Hexcel Corporation Multi-sectional acoustic septum
US8997923B2 (en) * 2013-08-12 2015-04-07 Hexcel Corporation Sound wave guide for use in acoustic structures
US10184398B2 (en) 2013-10-17 2019-01-22 Rohr, Inc. Acoustic structural panel with slanted core
US9592918B2 (en) * 2014-06-23 2017-03-14 Rohr, Inc. Acoustic liner
FR3026122B1 (en) * 2014-09-24 2019-08-09 Safran Aircraft Engines ACOUSTIC TREATMENT PANEL
EP3045680B1 (en) * 2015-01-15 2020-10-14 Ansaldo Energia Switzerland AG Method and apparatus for cooling a hot gas wall
US9650963B2 (en) 2015-01-29 2017-05-16 Rohr, Inc. Acoustic structural panel with herringbone core
US10563578B2 (en) * 2015-02-18 2020-02-18 Mra Systems, Llc Acoustic liners and method of shaping an inlet of an acoustic liner
US10800117B2 (en) 2015-03-12 2020-10-13 Rohr, Inc. Method of forming an acoustic bond panel with insertable acoustic assemblies
US9656452B2 (en) 2015-03-12 2017-05-23 Rohr, Inc. Method of forming an acoustic bond panel with insertable acoustic assemblies
US9708930B2 (en) 2015-12-09 2017-07-18 Rohr, Inc. Multi-degree of freedom acoustic panel
US10460714B1 (en) 2016-02-05 2019-10-29 United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration Broadband acoustic absorbers
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
US9978354B2 (en) * 2016-04-15 2018-05-22 Rohr, Inc. Acoustic panel with vertical stiffeners
US9704467B1 (en) * 2016-04-15 2017-07-11 Rohr, Inc. Acoustic panel with corrugated baffles and septums
US10487943B2 (en) 2016-07-12 2019-11-26 United Technologies Corporation Multi-ply seal ring
US10309305B2 (en) * 2016-11-18 2019-06-04 Rohr, Inc. Acoustic panel with sidewall stringers
US10316755B2 (en) * 2016-11-18 2019-06-11 Rohr, Inc. Acoustic panel with sidewall stringers
US10332501B2 (en) * 2017-02-01 2019-06-25 General Electric Company Continuous degree of freedom acoustic cores
US10414481B2 (en) * 2017-02-14 2019-09-17 Rohr, Inc. Method for forming a structural panel
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US10525636B2 (en) 2017-06-19 2020-01-07 Rohr, Inc. Process for forming a fiber-reinforced composite structure
US10436118B2 (en) * 2017-06-19 2019-10-08 Rohr, Inc. Acoustic panel with folding chamber
US10695986B2 (en) * 2017-08-22 2020-06-30 Rohr, Inc. Method for forming a structural panel
FR3070308B1 (en) * 2017-08-25 2021-04-09 Safran Nacelles STRUCTURAL AND / OR ACOUSTIC PANEL OF AN AIRCRAFT PROPULSIVE NACELLE ASSEMBLY AND RELATED MANUFACTURING PROCESS
US10851713B2 (en) * 2017-08-29 2020-12-01 Mra Systems, Llc. Acoustic liner having internal structure
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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)
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US11572850B2 (en) 2019-06-04 2023-02-07 Rohr, Inc. Acoustic panel with one or more structural stiffeners
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Also Published As

Publication number Publication date
AU4862472A (en) 1974-05-09
GB1369345A (en) 1974-10-02
AU464771B2 (en) 1975-09-04
US3734234A (en) 1973-05-22

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