DE4027511C1 - - Google Patents

Info

Publication number
DE4027511C1
DE4027511C1 DE4027511A DE4027511A DE4027511C1 DE 4027511 C1 DE4027511 C1 DE 4027511C1 DE 4027511 A DE4027511 A DE 4027511A DE 4027511 A DE4027511 A DE 4027511A DE 4027511 C1 DE4027511 C1 DE 4027511C1
Authority
DE
Germany
Prior art keywords
absorber
sound
hybrid
passive
active
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 - Fee Related
Application number
DE4027511A
Other languages
German (de)
English (en)
Inventor
Fridolin P. Prof. Dr.Rer.Nat. 7043 Grafenau De Mechel
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority to DE4027511A priority Critical patent/DE4027511C1/de
Priority to EP19910114279 priority patent/EP0473095A3/de
Application granted granted Critical
Publication of DE4027511C1 publication Critical patent/DE4027511C1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10K11/175—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
    • G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
    • 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
    • G10K11/17875—General system configurations using an error signal without a reference signal, e.g. pure feedback
    • 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
    • G10K2210/50—Miscellaneous
    • G10K2210/509—Hybrid, i.e. combining different technologies, e.g. passive and active

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
DE4027511A 1990-08-30 1990-08-30 Expired - Fee Related DE4027511C1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE4027511A DE4027511C1 (fr) 1990-08-30 1990-08-30
EP19910114279 EP0473095A3 (en) 1990-08-30 1991-08-26 Hybrid sound attenuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4027511A DE4027511C1 (fr) 1990-08-30 1990-08-30

Publications (1)

Publication Number Publication Date
DE4027511C1 true DE4027511C1 (fr) 1991-10-02

Family

ID=6413270

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4027511A Expired - Fee Related DE4027511C1 (fr) 1990-08-30 1990-08-30

Country Status (2)

Country Link
EP (1) EP0473095A3 (fr)
DE (1) DE4027511C1 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4226885A1 (de) * 1992-08-13 1994-02-17 Bayerische Motoren Werke Ag Schallabsorptionsverfahren für Kraftfahrzeuge
DE4342133A1 (de) * 1993-12-10 1995-06-14 Nokia Deutschland Gmbh Anordnung zur aktiven Schalldämpfung
DE4421803A1 (de) * 1994-06-22 1996-01-04 Stn Atlas Elektronik Gmbh Vorrichtung zur aktiven Schalldämpfung
WO1997043754A1 (fr) * 1996-05-14 1997-11-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Amortisseur de bruit reactif
EP0712114A3 (fr) * 1994-11-14 1998-01-07 General Electric Company Revêtement acoustique actif
US5812686A (en) * 1992-03-24 1998-09-22 Hobelsberger; Maximilian Hans Device for active simultation of an acoustical impedance
DE19910169A1 (de) * 1999-02-24 2000-09-07 Deutsch Zentr Luft & Raumfahrt Verfahren zur aktiven Geräuschminderung in Strömungskanälen von Turbomaschinen
DE10118187A1 (de) * 2001-04-11 2002-11-21 Siemens Ag Einrichtung zum Gestalten der Akustik eines Raumes
US6715580B1 (en) 1997-11-12 2004-04-06 Stankiewicz Gmbh Gas flow-through line with sound absorption effect
DE4308961B4 (de) * 1992-03-24 2005-08-18 Maximilian Hobelsberger Aktives, akustisch wirksames Wandelement mit vorgebbarer akustischer Impedanz
US6963647B1 (en) 1998-12-15 2005-11-08 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Controlled acoustic waveguide for soundproofing
DE10338786B4 (de) * 2003-07-18 2006-03-09 Weiss Klimatechnik Gmbh Zuluftdecke
DE102007000568A1 (de) 2007-10-24 2009-04-30 Silencesolutions Gmbh Schallabsorber
EP2314783A1 (fr) 2009-10-21 2011-04-27 Thorsten Flörsheimer Absorbeur de bruits ambiants
EP2105587B1 (fr) * 2008-03-27 2012-07-04 J. Eberspächer GmbH & Co. KG Installation de gaz d'échappement
WO2016083971A1 (fr) * 2014-11-28 2016-06-02 Relec Sa Absorbeur acoustique actif basse fréquence par commande de la vitesse acoustique à travers des couches résistives poreuses
DE102019101358A1 (de) 2019-01-21 2020-07-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Luftfahrzeug

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19746645C1 (de) * 1997-10-22 1999-05-20 Fraunhofer Ges Forschung Adaptiver akustischer Monitor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2712534A1 (de) * 1977-03-22 1978-09-28 Sound Attenuators Ltd Verfahren und vorrichtung zur aktiven schalldaempfung
DE3425450A1 (de) * 1983-09-22 1985-04-04 Rox Lufttechnische Gerätebau GmbH, 5000 Köln Geraeteschalldaempfer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665549A (en) * 1985-12-18 1987-05-12 Nelson Industries Inc. Hybrid active silencer
GB2204916B (en) * 1987-05-19 1991-10-16 British Gas Plc A silencer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2712534A1 (de) * 1977-03-22 1978-09-28 Sound Attenuators Ltd Verfahren und vorrichtung zur aktiven schalldaempfung
DE3425450A1 (de) * 1983-09-22 1985-04-04 Rox Lufttechnische Gerätebau GmbH, 5000 Köln Geraeteschalldaempfer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Mujal, M.L., Eriksson, L.J.: "Analysis of a bybrid noise control system for a duct", J. Acoust. Soc. Amer. 86(1989), S. 832-834 *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5812686A (en) * 1992-03-24 1998-09-22 Hobelsberger; Maximilian Hans Device for active simultation of an acoustical impedance
DE4308961B4 (de) * 1992-03-24 2005-08-18 Maximilian Hobelsberger Aktives, akustisch wirksames Wandelement mit vorgebbarer akustischer Impedanz
DE4226885A1 (de) * 1992-08-13 1994-02-17 Bayerische Motoren Werke Ag Schallabsorptionsverfahren für Kraftfahrzeuge
DE4226885C2 (de) * 1992-08-13 2001-04-19 Bayerische Motoren Werke Ag Schallabsorptionsverfahren für Kraftfahrzeuge
DE4342133A1 (de) * 1993-12-10 1995-06-14 Nokia Deutschland Gmbh Anordnung zur aktiven Schalldämpfung
DE4421803A1 (de) * 1994-06-22 1996-01-04 Stn Atlas Elektronik Gmbh Vorrichtung zur aktiven Schalldämpfung
EP0712114A3 (fr) * 1994-11-14 1998-01-07 General Electric Company Revêtement acoustique actif
WO1997043754A1 (fr) * 1996-05-14 1997-11-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Amortisseur de bruit reactif
US6715580B1 (en) 1997-11-12 2004-04-06 Stankiewicz Gmbh Gas flow-through line with sound absorption effect
US6963647B1 (en) 1998-12-15 2005-11-08 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Controlled acoustic waveguide for soundproofing
DE19910169B4 (de) * 1999-02-24 2004-01-29 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur aktiven Geräuschminderung in Strömungskanälen von Turbomaschinen
DE19910169A1 (de) * 1999-02-24 2000-09-07 Deutsch Zentr Luft & Raumfahrt Verfahren zur aktiven Geräuschminderung in Strömungskanälen von Turbomaschinen
DE10118187C2 (de) * 2001-04-11 2003-03-27 Siemens Ag Einrichtung zum Gestalten der Akustik eines Raumes
DE10118187A1 (de) * 2001-04-11 2002-11-21 Siemens Ag Einrichtung zum Gestalten der Akustik eines Raumes
DE10338786B4 (de) * 2003-07-18 2006-03-09 Weiss Klimatechnik Gmbh Zuluftdecke
DE102007000568A1 (de) 2007-10-24 2009-04-30 Silencesolutions Gmbh Schallabsorber
US8631899B2 (en) 2007-10-24 2014-01-21 Silenceresearch Gmbh Sound absorber
EP2105587B1 (fr) * 2008-03-27 2012-07-04 J. Eberspächer GmbH & Co. KG Installation de gaz d'échappement
EP2314783A1 (fr) 2009-10-21 2011-04-27 Thorsten Flörsheimer Absorbeur de bruits ambiants
WO2011047806A2 (fr) 2009-10-21 2011-04-28 Floersheimer Thorsten Absorbeur de bruits ambiants
WO2016083971A1 (fr) * 2014-11-28 2016-06-02 Relec Sa Absorbeur acoustique actif basse fréquence par commande de la vitesse acoustique à travers des couches résistives poreuses
DE102019101358A1 (de) 2019-01-21 2020-07-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Luftfahrzeug

Also Published As

Publication number Publication date
EP0473095A3 (en) 1993-02-24
EP0473095A2 (fr) 1992-03-04

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee