CA1001960A - Wide band width single layer sound suppressing panel - Google Patents

Wide band width single layer sound suppressing panel

Info

Publication number
CA1001960A
CA1001960A CA192,835A CA192835A CA1001960A CA 1001960 A CA1001960 A CA 1001960A CA 192835 A CA192835 A CA 192835A CA 1001960 A CA1001960 A CA 1001960A
Authority
CA
Canada
Prior art keywords
single layer
wide band
band width
layer sound
sound suppressing
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
CA192,835A
Other languages
English (en)
Inventor
Horst W.W. Hehmann
Edwin B. Smith
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of CA1001960A publication Critical patent/CA1001960A/en
Expired legal-status Critical Current

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
    • F02C7/24—Heat or noise insulation
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
CA192,835A 1973-03-01 1974-02-18 Wide band width single layer sound suppressing panel Expired CA1001960A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00337137A US3850261A (en) 1973-03-01 1973-03-01 Wide band width single layer sound suppressing panel

Publications (1)

Publication Number Publication Date
CA1001960A true CA1001960A (en) 1976-12-21

Family

ID=23319273

Family Applications (1)

Application Number Title Priority Date Filing Date
CA192,835A Expired CA1001960A (en) 1973-03-01 1974-02-18 Wide band width single layer sound suppressing panel

Country Status (8)

Country Link
US (1) US3850261A (enExample)
JP (1) JPS5024615A (enExample)
BE (1) BE811756A (enExample)
CA (1) CA1001960A (enExample)
DE (1) DE2409371A1 (enExample)
FR (1) FR2220079B1 (enExample)
GB (1) GB1456302A (enExample)
IT (1) IT1007394B (enExample)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1027002A (en) * 1974-08-30 1978-02-28 Horst W.W. Hehmann Phased treatment noise suppressor for acoustic duct applications
US4199936A (en) * 1975-12-24 1980-04-29 The Boeing Company Gas turbine engine combustion noise suppressor
US4064961A (en) * 1976-04-05 1977-12-27 Rohr Industries, Incorporated Slanted cavity resonator
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
US4135603A (en) * 1976-08-19 1979-01-23 United Technologies Corporation Sound suppressor liners
US4189027A (en) * 1976-08-19 1980-02-19 United Technologies Corporation Sound suppressor liners
US4113053A (en) * 1976-10-06 1978-09-12 Bridgestone Tire Company Limited Sound absorbing body
DE59208715D1 (de) * 1992-11-09 1997-08-21 Asea Brown Boveri Gasturbinen-Brennkammer
DE4340951A1 (de) * 1992-12-04 1994-06-09 Grumman Aerospace Corp Einstückiges Triebwerkeinlaß-Schallrohr
DE9408118U1 (de) * 1994-05-17 1995-09-14 M. Faist GmbH & Co KG, 86381 Krumbach Schallabsorber
US5685157A (en) * 1995-05-26 1997-11-11 General Electric Company Acoustic damper for a gas turbine engine combustor
US6069840A (en) * 1999-02-18 2000-05-30 The United States Of America As Represented By The Secretary Of The Air Force Mechanically coupled helmholtz resonators for broadband acoustic attenuation
US6309176B1 (en) 1999-11-12 2001-10-30 Siemens Automotive Inc. Noise attenuating sound resonator for automotive cooling module shroud
US6918740B2 (en) * 2003-01-28 2005-07-19 Dresser-Rand Company Gas compression apparatus and method with noise attenuation
GB2403860B (en) * 2003-07-10 2006-05-17 Stuart Colam Acoustic attenuators
US7631481B2 (en) * 2004-12-01 2009-12-15 United Technologies Corporation Cooled duct for gas turbine engine
US20060137352A1 (en) * 2004-12-29 2006-06-29 United Technologies Corporation Augmentor liner
US7861823B2 (en) * 2005-11-04 2011-01-04 United Technologies Corporation Duct for reducing shock related noise
US7469770B2 (en) * 2006-06-29 2008-12-30 United Technologies Corporation Anechoic visco-thermal liner
EP2116770B1 (en) * 2008-05-07 2013-12-04 Siemens Aktiengesellschaft Combustor dynamic attenuation and cooling arrangement
FR2938014B1 (fr) * 2008-11-06 2011-04-15 Aircelle Sa Panneau d'attenuation acoustique pour nacelle de moteur d'aeronef
FR2940360B1 (fr) * 2008-12-22 2011-10-07 Aircelle Sa Panneau d'attenuation acoustique pour nacelle de moteur d'aeronef,structure d'entree d'air et structure interne fixe incorporant ledit panneau
DE102009037956B4 (de) * 2009-08-18 2024-06-06 MTU Aero Engines AG Turbinenaustrittsgehäuse
DE102011008921A1 (de) * 2011-01-19 2012-07-19 Rolls-Royce Deutschland Ltd & Co Kg Gasturbinenabgaskonus
US8720204B2 (en) 2011-02-09 2014-05-13 Siemens Energy, Inc. Resonator system with enhanced combustor liner cooling
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
US8966903B2 (en) 2011-08-17 2015-03-03 General Electric Company Combustor resonator with non-uniform resonator passages
US9592918B2 (en) * 2014-06-23 2017-03-14 Rohr, Inc. Acoustic liner
US9650963B2 (en) * 2015-01-29 2017-05-16 Rohr, Inc. Acoustic structural panel with herringbone core
US10174675B2 (en) * 2015-12-30 2019-01-08 General Electric Company Acoustic liner for gas turbine engine components
US9761216B2 (en) 2016-02-10 2017-09-12 Rohr, Inc. Acoustic panel with angled corrugated core structures
US9764818B2 (en) 2016-02-10 2017-09-19 Rohr, Inc. Structural, cellular core with corrugated support walls
FR3060829B1 (fr) * 2016-12-20 2019-05-31 Airbus Operations Structure constituant un isolant acoustique
US10414481B2 (en) 2017-02-14 2019-09-17 Rohr, Inc. Method for forming a structural panel
US10525636B2 (en) 2017-06-19 2020-01-07 Rohr, Inc. Process for forming a fiber-reinforced composite structure
US10577117B2 (en) * 2017-08-04 2020-03-03 Hexcel Corporation Angled acoustic honeycomb
US10695986B2 (en) 2017-08-22 2020-06-30 Rohr, Inc. Method for forming a structural panel
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)
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
US11398214B2 (en) 2018-12-14 2022-07-26 Rohr, Inc. Forming a structured panel with one or more structural reinforcements
US11242822B2 (en) 2018-12-14 2022-02-08 Rohr, Inc. Structured panel with multi-panel structure(s)
FR3091901B1 (fr) * 2019-01-22 2020-12-25 Safran Aircraft Engines Dispositif de réduction de bruit avec structure en nid d’abeille à perçage oblique
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
US11668236B2 (en) * 2020-07-24 2023-06-06 General Electric Company Acoustic liners with low-frequency sound wave attenuating features
US11970992B2 (en) 2021-06-03 2024-04-30 General Electric Company Acoustic cores and tools and methods for forming the same
US12142253B2 (en) 2021-10-05 2024-11-12 General Electric Company Solid adhesive film for acoustic liner and method
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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL94357C (enExample) * 1900-01-01
BE554083A (enExample) * 1956-02-18
US3437173A (en) * 1966-11-25 1969-04-08 Gen Electric Gas turbine engine with screech attenuating means
US3542152A (en) * 1968-04-08 1970-11-24 Gen Electric Sound suppression panel
US3481427A (en) * 1968-11-29 1969-12-02 Mc Donnell Douglas Corp Acoustical panel structure
US3507355A (en) * 1969-05-22 1970-04-21 Rohr Corp Multi-layer face material for sound absorptive duct lining material

Also Published As

Publication number Publication date
JPS5024615A (enExample) 1975-03-15
US3850261A (en) 1974-11-26
DE2409371A1 (de) 1974-09-05
FR2220079B1 (enExample) 1979-10-12
GB1456302A (en) 1976-11-24
BE811756A (fr) 1974-07-01
IT1007394B (it) 1976-10-30
FR2220079A1 (enExample) 1974-09-27

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