FR2362461A1 - Revetements acoustiques pour absorber les sons - Google Patents

Revetements acoustiques pour absorber les sons

Info

Publication number
FR2362461A1
FR2362461A1 FR7723709A FR7723709A FR2362461A1 FR 2362461 A1 FR2362461 A1 FR 2362461A1 FR 7723709 A FR7723709 A FR 7723709A FR 7723709 A FR7723709 A FR 7723709A FR 2362461 A1 FR2362461 A1 FR 2362461A1
Authority
FR
France
Prior art keywords
acoustic
cavities
sounds
coatings
acoustic coatings
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.)
Withdrawn
Application number
FR7723709A
Other languages
English (en)
Inventor
Lee Wallace Dean
Aldo Anthony Peracchio
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.)
RTX Corp
Original Assignee
United Technologies 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 United Technologies Corp filed Critical United Technologies Corp
Publication of FR2362461A1 publication Critical patent/FR2362461A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149—Honeycomb-like

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Exhaust Silencers (AREA)

Abstract

La présente invention concerne un revêtement acoustique. Ce revêtement comprend un certain nombre de cavités definissant des résonateurs de Helmholtz où les cavités adjacentes sont asymétriques provoquant un déséquilibre de pression à travers les éléments de couplage (un tube, une fente ou une ouverture) disposés entre ces cavités et une dispersion de l'énergie des sons. De tels revêtements acoustiques sont particulièrement utiles pour réduire le bruit des turbo-moteurs à ventilateur où des basses fréquences sont rencontrées.
FR7723709A 1976-08-19 1977-08-02 Revetements acoustiques pour absorber les sons Withdrawn FR2362461A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/715,816 US4135603A (en) 1976-08-19 1976-08-19 Sound suppressor liners

Publications (1)

Publication Number Publication Date
FR2362461A1 true FR2362461A1 (fr) 1978-03-17

Family

ID=24875604

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7723709A Withdrawn FR2362461A1 (fr) 1976-08-19 1977-08-02 Revetements acoustiques pour absorber les sons

Country Status (11)

Country Link
US (1) US4135603A (fr)
JP (1) JPS5324801A (fr)
BE (1) BE857391A (fr)
BR (1) BR7705440A (fr)
CA (1) CA1079201A (fr)
DE (1) DE2734672A1 (fr)
FR (1) FR2362461A1 (fr)
GB (1) GB1553555A (fr)
IL (1) IL52634A (fr)
IT (1) IT1086507B (fr)
NL (1) NL7708589A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570129A1 (fr) * 1984-09-05 1986-03-14 Messerschmitt Boelkow Blohm Dispositif pour amortir les vibrations dans la chambre de combustion de moteurs-fusees a propergols liquides

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GB2090334B (en) * 1980-12-29 1983-11-16 Rolls Royce Damping flutter of ducted fans
FR2498793A1 (fr) * 1981-01-29 1982-07-30 Snecma Garniture insonorisante pour conduit de gaz notamment pour veine de soufflante de turboreacteur et outillage pour sa fabrication
DE3812224A1 (de) * 1988-04-13 1989-10-26 Messerschmitt Boelkow Blohm Vorrichtung zur daempfung von luft- und koerperschallschwingungen
US5777947A (en) * 1995-03-27 1998-07-07 Georgia Tech Research Corporation Apparatuses and methods for sound absorption using hollow beads loosely contained in an enclosure
DE19640087C2 (de) * 1996-09-28 2001-01-11 Continental Ag Absorberelement zur Absorption von Luftschall
DE19910595A1 (de) * 1999-03-10 2000-09-21 Volkswagen Ag Luftschallabsorbierendes Formteil
US6203019B1 (en) * 1999-03-31 2001-03-20 The Babcock & Wilcox Company Machine and method for preventing flange leakage
US6973790B2 (en) * 2000-12-06 2005-12-13 Mitsubishi Heavy Industries, Ltd. Gas turbine combustor, gas turbine, and jet engine
US6550574B2 (en) 2000-12-21 2003-04-22 Dresser-Rand Company Acoustic liner and a fluid pressurizing device and method utilizing same
DE01996188T1 (de) * 2000-12-21 2005-07-14 Dresser-Rand Co. Doppelschicht-Schallschutzauskleidung und eine Fluiddruckbeaufschlagungsvorrichtung und ein diese einsetzendes Verfahren
WO2004051063A1 (fr) * 2002-12-02 2004-06-17 Mitsubishi Heavy Industries, Ltd. Chambre de combustion de turbine a gaz et turbine a gaz equipee de cette chambre de combustion
WO2004061817A1 (fr) * 2002-12-26 2004-07-22 Fujitsu Limited Silencieux et equipement electronique
US6918740B2 (en) * 2003-01-28 2005-07-19 Dresser-Rand Company Gas compression apparatus and method with noise attenuation
DE102004012929B3 (de) * 2004-03-17 2005-04-21 Dornier Gmbh Anordnung zur Lärmreduzierung in Turbofantriebwerken
US7033137B2 (en) 2004-03-19 2006-04-25 Ametek, Inc. Vortex blower having helmholtz resonators and a baffle assembly
US7337875B2 (en) * 2004-06-28 2008-03-04 United Technologies Corporation High admittance acoustic liner
US7401682B2 (en) * 2005-08-10 2008-07-22 United Technologies Corporation Architecture for an acoustic liner
US7311175B2 (en) * 2005-08-10 2007-12-25 United Technologies Corporation Acoustic liner with bypass cooling
CN100582610C (zh) * 2005-09-02 2010-01-20 富士通株式会社 电子设备
EP1762786A1 (fr) * 2005-09-13 2007-03-14 Siemens Aktiengesellschaft Procédé et appareil pour réduire les vibrations thermo-accoustiques, en particulier dans une turbine
EP2116770B1 (fr) * 2008-05-07 2013-12-04 Siemens Aktiengesellschaft Atténuation dynamique de chambre de combustion et agencement de refroidissement
US20100236245A1 (en) * 2009-03-19 2010-09-23 Johnson Clifford E Gas Turbine Combustion System
CN102597477B (zh) * 2009-09-17 2015-12-16 沃尔沃航空公司 降噪面板和包括降噪面板的燃气涡轮机部件
US8393437B2 (en) * 2011-02-15 2013-03-12 Westinghouse Electric Company Llc Noise and vibration mitigation system for nuclear reactors employing an acoustic side branch resonator
DE102011081962A1 (de) * 2011-09-01 2013-03-07 Siemens Aktiengesellschaft Brennkammer für eine Gasturbinenanlage
JP6044070B2 (ja) * 2011-12-15 2016-12-14 ヤマハ株式会社 音響構造体
EP2642204A1 (fr) * 2012-03-21 2013-09-25 Alstom Technology Ltd Amortissement à large bande simultanée à de multiples emplacements dans une chambre de combustion
EP2816289B1 (fr) * 2013-05-24 2020-10-07 Ansaldo Energia IP UK Limited Amortisseur pour turbines à gaz
JP2015227939A (ja) * 2014-05-30 2015-12-17 一壽 藤本 共鳴器型吸音器
US9618151B2 (en) 2015-02-26 2017-04-11 Adriaan DeVilliers Compact modular low resistance broadband acoustic silencer
CN108399911B (zh) * 2017-02-06 2024-03-22 北京市劳动保护科学研究所 一种低频宽带的通风散热隔声结构
US10473120B2 (en) * 2017-03-09 2019-11-12 Denso International America, Inc. Blower assembly having resonators and resonator assembly
KR101943607B1 (ko) * 2017-05-18 2019-01-29 성균관대학교산학협력단 음향 공진장치
CN107610688B (zh) * 2017-09-05 2024-04-26 同济大学 一种腔管复合隔声结构
US10755687B2 (en) * 2017-10-13 2020-08-25 Out of the Box Audio, LLC Thin film resonators
US11568848B2 (en) * 2018-04-27 2023-01-31 Toyota Motor Engineering & Manufacturing North America, Inc. Airborne acoustic absorber
JP2022139729A (ja) * 2021-03-12 2022-09-26 株式会社豊田中央研究所 吸音構造体およびその製造方法
US11428191B1 (en) * 2021-04-30 2022-08-30 Rhor, Inc. Acoustic zoned system for turbofan engine exhaust application
US12104536B2 (en) * 2021-05-12 2024-10-01 Rohr, Inc. Nacelle liner comprising unit cell resonator networks
US12118971B2 (en) * 2021-05-12 2024-10-15 B/E Aerospace, Inc. Aircraft acoustic panel
US11804206B2 (en) 2021-05-12 2023-10-31 Goodrich Corporation Acoustic panel for noise attenuation
US11830467B2 (en) * 2021-10-16 2023-11-28 Rtx Coroporation Unit cell resonator networks for turbomachinery bypass flow structures
US11781485B2 (en) 2021-11-24 2023-10-10 Rtx Corporation Unit cell resonator networks for gas turbine combustor tone damping
US12071217B2 (en) 2022-03-10 2024-08-27 Rohr, Inc. Additive manufacturing of unit cell resonator networks for acoustic damping

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US2840179A (en) * 1954-06-17 1958-06-24 Miguel C Junger Sound-absorbing panels
US3137364A (en) * 1958-10-06 1964-06-16 Wood Conversion Co Manufacture of perforated acoustic bodies
FR2128939A5 (fr) * 1971-03-09 1972-10-27 Dassault Aeronautique
US3819007A (en) * 1973-04-27 1974-06-25 Lockheed Aircraft Corp Controllable laminar sound absorptive structure
FR2213384A1 (fr) * 1972-11-06 1974-08-02 Sieuzac Jean
FR2300384A1 (fr) * 1975-02-07 1976-09-03 Lockheed Aircraft Corp Absorbeur acoustique a double bande

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US2281121A (en) * 1939-08-25 1942-04-28 Merton T Straight Load bearing acoustic building block
US2922201A (en) * 1957-05-09 1960-01-26 United States Gypsum Co Wooden stud partition
US2989136A (en) * 1959-04-14 1961-06-20 Wohlberg George Sound attenuation
US3177970A (en) * 1961-01-21 1965-04-13 Gomma Antivibranti Applic Sound-absorbing panels with tapered holes therethrough
US3542152A (en) * 1968-04-08 1970-11-24 Gen Electric Sound suppression panel
GB1274343A (en) * 1970-02-24 1972-05-17 Rolls Royce Improvements in or relating to acoustic linings
US3820628A (en) * 1972-10-02 1974-06-28 United Aircraft Corp Sound suppression means for rotating machinery
US3819009A (en) * 1973-02-01 1974-06-25 Gen Electric Duct wall acoustic treatment
US3850261A (en) * 1973-03-01 1974-11-26 Gen Electric Wide band width single layer sound suppressing panel
US3910374A (en) * 1974-03-18 1975-10-07 Rohr Industries Inc Low frequency structural acoustic attenuator
US4001473A (en) * 1976-02-19 1977-01-04 Rohr Industries, Inc. Sound attenuating structural honeycomb sandwich material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840179A (en) * 1954-06-17 1958-06-24 Miguel C Junger Sound-absorbing panels
US3137364A (en) * 1958-10-06 1964-06-16 Wood Conversion Co Manufacture of perforated acoustic bodies
FR2128939A5 (fr) * 1971-03-09 1972-10-27 Dassault Aeronautique
FR2213384A1 (fr) * 1972-11-06 1974-08-02 Sieuzac Jean
US3819007A (en) * 1973-04-27 1974-06-25 Lockheed Aircraft Corp Controllable laminar sound absorptive structure
FR2300384A1 (fr) * 1975-02-07 1976-09-03 Lockheed Aircraft Corp Absorbeur acoustique a double bande

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570129A1 (fr) * 1984-09-05 1986-03-14 Messerschmitt Boelkow Blohm Dispositif pour amortir les vibrations dans la chambre de combustion de moteurs-fusees a propergols liquides

Also Published As

Publication number Publication date
IT1086507B (it) 1985-05-28
GB1553555A (en) 1979-09-26
JPS5324801A (en) 1978-03-08
NL7708589A (nl) 1978-02-21
CA1079201A (fr) 1980-06-10
BE857391A (fr) 1977-12-01
DE2734672A1 (de) 1978-02-23
BR7705440A (pt) 1978-05-02
US4135603A (en) 1979-01-23
IL52634A (en) 1980-10-26

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