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FR2385972A2 - Dispositifs absorbeurs acoustiques actifs pour des conduits - Google Patents

Dispositifs absorbeurs acoustiques actifs pour des conduits

Info

Publication number
FR2385972A2
FR2385972A2 FR7710497A FR7710497A FR2385972A2 FR 2385972 A2 FR2385972 A2 FR 2385972A2 FR 7710497 A FR7710497 A FR 7710497A FR 7710497 A FR7710497 A FR 7710497A FR 2385972 A2 FR2385972 A2 FR 2385972A2
Authority
FR
France
Prior art keywords
ducts
application
enclosure
active acoustical
duct
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.)
Granted
Application number
FR7710497A
Other languages
English (en)
Other versions
FR2385972B2 (fr
Inventor
Theophile Angelini
Bernard Nayroles
Maurice Jessel
Gerard Mangiante
Georges Canevet
Bernard Carbone
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.)
Bpifrance Financement SA
Original Assignee
Agence National de Valorisation de la Recherche ANVAR
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 Agence National de Valorisation de la Recherche ANVAR filed Critical Agence National de Valorisation de la Recherche ANVAR
Priority to FR7710497A priority Critical patent/FR2385972A2/fr
Priority to US05/891,340 priority patent/US4177874A/en
Publication of FR2385972A2 publication Critical patent/FR2385972A2/fr
Application granted granted Critical
Publication of FR2385972B2 publication Critical patent/FR2385972B2/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/033—Noise absorbers
    • F16L55/0333—Noise absorbers by means of an active system
    • 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
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • 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
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/112—Ducts
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3011—Single acoustic input
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3044—Phase shift, e.g. complex envelope processing
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3045—Multiple acoustic inputs, single acoustic output
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3214—Architectures, e.g. special constructional features or arrangements of features
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3227—Resonators
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3229—Transducers

Landscapes

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

Abstract

L'invention a pour objet des perfectionnements aux absorbeurs acoustiques actifs décrits dans la demande du brevet principal. Un absorbeur selon la présente demande est constitué par un tripole intégré composé un dipole 5a, 5b et d'un monopole 5c logés tous trois dans une même enceinte acoustique 3 qui est située sur le côté d'un conduit 1 dans lequel circulent des bruits que l'on désire atténuer. L'enceinte 3 communique avec le conduit par trois pavillons convergents 4a, 4b, 4c Une application est l'atténuation des bruits dans les conduits tels que les gaines de ventilation.
FR7710497A 1977-04-01 1977-04-01 Dispositifs absorbeurs acoustiques actifs pour des conduits Granted FR2385972A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7710497A FR2385972A2 (fr) 1977-04-01 1977-04-01 Dispositifs absorbeurs acoustiques actifs pour des conduits
US05/891,340 US4177874A (en) 1977-04-01 1978-03-29 Active acoustic sound absorber device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7710497A FR2385972A2 (fr) 1977-04-01 1977-04-01 Dispositifs absorbeurs acoustiques actifs pour des conduits

Publications (2)

Publication Number Publication Date
FR2385972A2 true FR2385972A2 (fr) 1978-10-27
FR2385972B2 FR2385972B2 (fr) 1981-09-18

Family

ID=9189147

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7710497A Granted FR2385972A2 (fr) 1977-04-01 1977-04-01 Dispositifs absorbeurs acoustiques actifs pour des conduits

Country Status (2)

Country Link
US (1) US4177874A (fr)
FR (1) FR2385972A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438796A1 (fr) * 1978-10-13 1980-05-09 Anvar Procedes et dispositifs anti-bruit pour accelerer le tirage des conduits d'evacuation de fumees et de gaz ou des conduits d'aeration
EP0470656A1 (fr) * 1990-08-10 1992-02-12 General Motors Corporation Méthode et dispositif d'atténuation du bruit d'un moteur
DE10021031A1 (de) * 2000-05-02 2001-11-08 Mann & Hummel Filter Leitungssystem mit elektromechanischem Wandler zur Erzeugung eines Korrekturgeräusches

Families Citing this family (31)

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Publication number Priority date Publication date Assignee Title
US4473906A (en) * 1980-12-05 1984-09-25 Lord Corporation Active acoustic attenuator
US4449235A (en) * 1982-07-14 1984-05-15 The United States Of America As Represented By The Secretary Of The Air Force Electronic cancelling of acoustic traveling waves
KR0137271B1 (ko) * 1988-02-19 1998-04-25 원본미기재 기관 배기 시스템을 위한 능동음(音)감쇠 시스템
US5097923A (en) * 1988-02-19 1992-03-24 Noise Cancellation Technologies, Inc. Active sound attenation system for engine exhaust systems and the like
US5024288A (en) * 1989-08-10 1991-06-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Sound attenuation apparatus
EP0542749B1 (fr) * 1990-04-09 1997-12-03 Noise Cancellation Technologies, Inc. Amortissement du bruit
US5133017A (en) * 1990-04-09 1992-07-21 Active Noise And Vibration Technologies, Inc. Noise suppression system
US5272286A (en) * 1990-04-09 1993-12-21 Active Noise And Vibration Technologies, Inc. Single cavity automobile muffler
US5319165A (en) * 1990-04-25 1994-06-07 Ford Motor Company Dual bandpass secondary source
US5416845A (en) * 1993-04-27 1995-05-16 Noise Cancellation Technologies, Inc. Single and multiple channel block adaptive methods and apparatus for active sound and vibration control
FI105603B (fi) 1997-09-12 2000-09-15 Valtion Teknillinen Menetelmä ja laitteisto äänen vaimentamiseksi putkessa
US20020013519A1 (en) * 2000-06-14 2002-01-31 Scott Adams Secure test and test result delivery system
DE102004040421A1 (de) * 2004-08-19 2006-03-09 J. Eberspächer GmbH & Co. KG Aktiver Abgasschalldämpfer
DE102008018085A1 (de) 2008-04-09 2009-10-15 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer
DE102009049280B4 (de) 2009-10-13 2016-10-06 Eberspächer Exhaust Technology GmbH & Co. KG Aktiver Schalldämpfer
EP2530263B1 (fr) 2011-06-01 2013-08-21 Eberspächer Exhaust Technology GmbH & Co. KG Système de commande active du bruit pour systèmes d'échappement et procédé de commande associé
DE102011106647A1 (de) 2011-07-05 2013-01-10 J. Eberspächer GmbH & Co. KG Antischall-system für abgasanlagen und verfahren zum steuern desselben
DE102011084567C5 (de) * 2011-10-14 2019-08-14 Eberspächer Exhaust Technology GmbH & Co. KG Aktiver Schalldämpfer
DE102011117495B4 (de) 2011-11-02 2014-08-21 Eberspächer Exhaust Technology GmbH & Co. KG Überlastungsschutz für Lautsprecher in Abgasanlagen
US9386366B2 (en) 2011-12-02 2016-07-05 Eberspächer Exhaust Technology GmbH & Co. KG Active design of exhaust sounds
DE102012201725B4 (de) * 2012-02-06 2016-02-25 Eberspächer Exhaust Technology GmbH & Co. KG Aktiver Schalldämpfer
DE102012109872B4 (de) 2012-10-16 2015-08-27 Eberspächer Exhaust Technology GmbH & Co. KG Lautsprecher mit verbesserter thermischer Belastbarkeit
EP2797075B1 (fr) 2013-04-26 2018-09-12 Eberspächer Exhaust Technology GmbH & Co. KG Système permettant d'influencer les bruits d'échappement, les bruits du moteur et/ou les bruits d'admission
DE102013104307A1 (de) 2013-04-26 2014-10-30 Eberspächer Exhaust Technology GmbH & Co. KG System zur Beeinflussung von Abgasgeräuschen und/oder Ansauggeräuschen und/oder Motorgeräuschen
DE102013104810A1 (de) 2013-05-08 2014-11-13 Eberspächer Exhaust Technology GmbH & Co. KG Schallerzeuger für ein antischall-system zur beeinflussung von abgasgeräuschen und/oder ansauggeräuschen eines kraftfahrzeugs
DE102013010609B4 (de) 2013-06-25 2023-07-27 Purem GmbH System zur Beeinflussung von Abgasgeräuschen in einer mehrflutigen Abgasanlage und Kraftfahrzeug
DE102013011937B3 (de) * 2013-07-17 2014-10-09 Eberspächer Exhaust Technology GmbH & Co. KG Schallerzeuger für ein Antischall-System zur Beeinflussung von Abgasgeräuschen und/oder Ansauggeräuschen eines Kraftfahrzeugs
EP2915967B1 (fr) 2014-03-04 2017-08-02 Eberspächer Exhaust Technology GmbH & Co. KG Conception active des bruits d'échappement
DE102015119191A1 (de) 2015-11-06 2017-05-11 Eberspächer Exhaust Technology GmbH & Co. KG Schallerzeuger zur Befestigung an einem Fahrzeug zur Beeinflussung von Geräuschen des Fahrzeugs
CN109027501A (zh) * 2018-06-19 2018-12-18 东北大学 一种工业管道噪声可调式控制结构
DE102020209681A1 (de) * 2020-07-31 2022-02-03 Universität Rostock, Körperschaft des öffentlichen Rechts Vorrichtung und Verfahren zur aktiven Reduktion von Druckfluktuationen in einem hydrodynamischen System

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3565209A (en) * 1968-02-28 1971-02-23 United Aircraft Corp Method and apparatus for generating an acoustic output from an ionized gas stream
US3826870A (en) * 1970-03-20 1974-07-30 Quest Electronics Corp Noise cancellation
US3936606A (en) * 1971-12-07 1976-02-03 Wanke Ronald L Acoustic abatement method and apparatus
GB1456018A (en) * 1972-11-24 1976-11-17 Nat Res Dev Active control of sound waves
FR2329929A1 (fr) * 1975-10-31 1977-05-27 Anvar Dispositifs absorbeurs acoustiques actifs pour des conduits

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438796A1 (fr) * 1978-10-13 1980-05-09 Anvar Procedes et dispositifs anti-bruit pour accelerer le tirage des conduits d'evacuation de fumees et de gaz ou des conduits d'aeration
EP0470656A1 (fr) * 1990-08-10 1992-02-12 General Motors Corporation Méthode et dispositif d'atténuation du bruit d'un moteur
DE10021031A1 (de) * 2000-05-02 2001-11-08 Mann & Hummel Filter Leitungssystem mit elektromechanischem Wandler zur Erzeugung eines Korrekturgeräusches

Also Published As

Publication number Publication date
US4177874A (en) 1979-12-11
FR2385972B2 (fr) 1981-09-18

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