EP0959453A2 - Système actif de suppression du bruit pour les surfaces susceptibles d'émettre du bruit - Google Patents

Système actif de suppression du bruit pour les surfaces susceptibles d'émettre du bruit Download PDF

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Publication number
EP0959453A2
EP0959453A2 EP99109724A EP99109724A EP0959453A2 EP 0959453 A2 EP0959453 A2 EP 0959453A2 EP 99109724 A EP99109724 A EP 99109724A EP 99109724 A EP99109724 A EP 99109724A EP 0959453 A2 EP0959453 A2 EP 0959453A2
Authority
EP
European Patent Office
Prior art keywords
active noise
noise suppression
axis
sensors
noise
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
EP99109724A
Other languages
German (de)
English (en)
Other versions
EP0959453B1 (fr
EP0959453A3 (fr
Inventor
Marius Bebesel
Rudolf Maier
Klaus Schmidts
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.)
Airbus Defence and Space GmbH
Original Assignee
DaimlerChrysler AG
EADS Deutschland GmbH
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 DaimlerChrysler AG, EADS Deutschland GmbH filed Critical DaimlerChrysler AG
Publication of EP0959453A2 publication Critical patent/EP0959453A2/fr
Publication of EP0959453A3 publication Critical patent/EP0959453A3/fr
Application granted granted Critical
Publication of EP0959453B1 publication Critical patent/EP0959453B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G10K11/17857—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
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • 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
    • 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
    • G10K2210/128—Vehicles
    • 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
    • G10K2210/129—Vibration, e.g. instead of, or in addition to, acoustic noise
    • G10K2210/1291—Anti-Vibration-Control, e.g. reducing vibrations in panels or beams
    • 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
    • G10K2210/32291—Plates or thin films, e.g. PVDF

Definitions

  • the invention relates to active noise suppression for a noise-emitting Surface with at least one fast sensor connected to the surface and at least one that can be controlled by the signal of the fast sensor, actuator acting on the surface.
  • Such a system for reducing the sound radiation from a flat surface is described, for example, by ME Johnson and SJ Elliott in Journal of Acoustic Society of America, 98 (4), Oct. 1995 under the title Active Control of Sound Radiation Using Volume Velocity Cancellation ".
  • a fast sensor is used which, like the actuator, extends over the entire surface and only detects odd-numbered vibration modes, in particular the basic mode (1,1) and these vibrations by means of the actuator If the noise-radiating surface vibrates with higher vibration modes in which even one component is an even number, for example, (1,2), (2,3), etc. modes, such a surface-integrating sensor does not provide any Output signal more, since the integration over all oscillation peaks and valleys results in the sum signal 0.
  • the invention uses axis-selective integrating fast sensors, which in the simplest case consist of strip-shaped Piezo foils are made. As soon as one along one axis such a sensor occupies a vibration mode with a odd component occurs, is the sum signal at this sensor no longer 0, so that an appropriately controlled actuator of this vibration mode can counteract.
  • a plate 1 which can be, for example, a structural or body part and which are a source of interference 2, e.g. B. an internal combustion engine excited to vibrate is applied two piezoelectric foils 3 and 4 one above the other.
  • the piezoelectric For example, slides 3 and 4 consist of stretched PVDF, which due to their manufacturing process is unidirectional piezoelectric Have properties.
  • the two foils 3 and 4 are arranged one above the other that their preferred piezoelectric directions represented by arrows are oriented perpendicular to each other in the plate plane.
  • the embodiment is thus the film 3 for deflections of the plate surface sensitive in the x direction and the film 4 for deflections in y direction.
  • the voltage signals generated by the foils 3 and 4 are fed to a controller 5, which processes the signals according to known methods and controls an actuator 6.
  • the actuator 6 can act on the plate 1 either in a punctiform or area-like manner and in such a way that vibration-induced deflections of the plate are counteracted.
  • Feed Forward control, the vibration signals of the interference source 2 can be detected and fed to the controller.
  • the speed of a plate 31 is detected point by point by means of individual sensors 32 which are distributed in a matrix over the surface of the plate 31.
  • acceleration sensors which are glued to the surface of the plate 31 and which are electrically connected to one another in rows and columns are suitable.
  • the sensors in the upper line then deliver, for example, a first sum signal S 1x , those in the second line the signal S 2x and so on;
  • the sensors of the left column supply the sum signal S 1y , those of the next column the sum signal S 2y etc.
  • the row or column spacing of the measuring grid constructed from the acceleration sensors 32 must be adapted to the structure and to the frequency range in which noise reduction is desired. In order to resolve the highest possible mode orders, the distance d should be less than a quarter of the structure wavelength ⁇ of the highest mode.
  • appropriately small-sized strain gauges, piezoceramics or piezofilms can also be used.
  • each attachment element consists of a hard one Shell 42.1, which is provided with side walls 42.2, which in turn on the Place plate 41 and, together with shell 42.1, a cavity 43 form.
  • the shell 42.1 is in accordance with the exemplary embodiments 1, 2 or 3 are equipped with axis-selective fast sensors 44 and 45, whose signals are fed to a controller 46. This controls an actuator 47, which acts centrally on the shell 42.1.
  • Such attachment elements are particularly suitable for noise suppression of complex sound-emitting structures in which the vibration and radiation behavior can only be determined with difficulty.
  • the vibrations and attachment elements the emitted sound of the actually vibrating structure (plate 41) in turn stimulated.
  • the active system integrated in the front elements reduces their noise radiation and thus the sound radiation of the structure self.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Exhaust Silencers (AREA)
EP99109724A 1998-05-20 1999-05-18 Système actif de suppression du bruit pour les surfaces émettant du bruit Expired - Lifetime EP0959453B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19822582A DE19822582B4 (de) 1998-05-20 1998-05-20 Aktive Geräuschunterdrückung für lärmabstrahlende Flächen
DE19822582 1998-05-20

Publications (3)

Publication Number Publication Date
EP0959453A2 true EP0959453A2 (fr) 1999-11-24
EP0959453A3 EP0959453A3 (fr) 2001-11-21
EP0959453B1 EP0959453B1 (fr) 2004-01-07

Family

ID=7868372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109724A Expired - Lifetime EP0959453B1 (fr) 1998-05-20 1999-05-18 Système actif de suppression du bruit pour les surfaces émettant du bruit

Country Status (3)

Country Link
US (1) US6178246B1 (fr)
EP (1) EP0959453B1 (fr)
DE (2) DE19822582B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008046815A3 (fr) * 2006-10-16 2009-10-29 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de modification du bruit
CN115064083A (zh) * 2018-09-20 2022-09-16 乐金显示有限公司 显示设备和包括该显示设备的计算设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10117704C2 (de) * 2001-04-09 2002-08-01 Hoergeraete Kind Gmbh U Co Kg Kapselgehörschützer mit aktiver Schalldruckkompensation
US20030047395A1 (en) * 2001-09-11 2003-03-13 Patton Mark E. Control system for vibration employing piezoelectric strain actuators
US6609985B2 (en) 2001-11-07 2003-08-26 Borgwarner Inc. Tensioner with vibrational damping
SE524284C2 (sv) * 2002-04-18 2004-07-20 A2 Acoustics Ab Anordning för att driva ett membran inrättat i en öppning till ett utrymme samt fordon innefattande en anordning för att driva ett membran inrättat i en öppning hos fordonet
US7330583B2 (en) * 2002-08-19 2008-02-12 Photon Dynamics, Inc. Integrated visual imaging and electronic sensing inspection systems
NL1022647C2 (nl) * 2003-02-11 2004-08-12 Tno Inrichting voor het actief reduceren van geluidstransmissie, alsmede een paneel omvattende een dergelijke inrichting.
DE102004019592A1 (de) * 2004-04-22 2005-09-01 Siemens Ag Schalldämmungsvorrichtung
US8054984B2 (en) * 2006-10-16 2011-11-08 Bsh Home Appliances Corporation Sound altering apparatus
US8059827B2 (en) * 2006-10-16 2011-11-15 Bsh Home Appliances Corporation Noise reduction apparatus
JP5227263B2 (ja) * 2008-06-03 2013-07-03 パナソニック株式会社 能動騒音低減装置及びシステム
FR2960587B1 (fr) 2010-05-31 2017-12-01 Somfy Sas Dispositif de rigidification et caisson de store equipe d'un tel dispositif
DE102010043108A1 (de) * 2010-10-29 2012-05-03 Robert Bosch Gmbh Piezoelektrischer Teilflächen-Schallwandler
BR112014027723A2 (pt) 2012-05-11 2017-06-27 3M Innovative Properties Co sensor bioacústico com controle de vibração de ruído
CN105247335A (zh) * 2012-09-24 2016-01-13 积水化学工业株式会社 泄露检测器、泄露检测方法及配管网的监视装置
DE102013007481B4 (de) 2013-04-29 2014-12-04 DELUXE MCB UG (haftungsbeschränkt) Vorrichtung zur Schallreduzierung in Gasträumen
US9200943B2 (en) 2013-07-17 2015-12-01 GM Global Technology Operations LLC Acoustic sensing system for a motor vehicle
US11335312B2 (en) 2016-11-08 2022-05-17 Andersen Corporation Active noise cancellation systems and methods
EP3788619A1 (fr) 2018-05-04 2021-03-10 Andersen Corporation Ciblage de fréquence multibande pour atténuation de bruit
DE102018219644A1 (de) * 2018-11-16 2020-05-20 Zf Friedrichshafen Ag Aktive Reduktion von Schallemissionen an einem Kraftfahrzeug
CN112987508B (zh) * 2021-03-04 2022-09-30 长鑫存储技术有限公司 振动衰减结构及曝光装置
DE102021206170A1 (de) 2021-06-16 2022-12-22 Volkswagen Aktiengesellschaft Gehäusekomponente eines Leistungselektronikgehäuses mit Schwingungsaktor
DE102021126180A1 (de) 2021-10-08 2023-04-13 BH Holding GmbH Verfahren zur aktiven Geräuschunterdrückung in Innenräumen

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Publication number Priority date Publication date Assignee Title
DE3236098A1 (de) * 1982-09-29 1984-03-29 Siemens AG, 1000 Berlin und 8000 München Druckwandleranordnung, insbesondere fuer industrieroboter
US5115472A (en) * 1988-10-07 1992-05-19 Park Kyung T Electroacoustic novelties
DE3834853C2 (de) * 1988-10-13 1999-12-02 Bayerische Motoren Werke Ag Anordnung zur Verminderung des Geräuschpegels im Innenraum eines Kraftfahrzeugs
JP3320842B2 (ja) * 1992-07-06 2002-09-03 マツダ株式会社 車両の振動低減装置
US5410607A (en) * 1993-09-24 1995-04-25 Sri International Method and apparatus for reducing noise radiated from a complex vibrating surface
US5415522A (en) * 1993-11-01 1995-05-16 General Electric Company Active noise control using noise source having adaptive resonant frequency tuning through stress variation
US5812684A (en) * 1995-07-05 1998-09-22 Ford Global Technologies, Inc. Passenger compartment noise attenuation apparatus for use in a motor vehicle
US6031917A (en) * 1997-06-06 2000-02-29 Mcdonnell Douglas Corporation Active noise control using blocked mode approach

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008046815A3 (fr) * 2006-10-16 2009-10-29 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de modification du bruit
CN115064083A (zh) * 2018-09-20 2022-09-16 乐金显示有限公司 显示设备和包括该显示设备的计算设备
CN115064083B (zh) * 2018-09-20 2024-03-26 乐金显示有限公司 显示设备和包括该显示设备的计算设备

Also Published As

Publication number Publication date
DE19822582B4 (de) 2004-02-12
US6178246B1 (en) 2001-01-23
EP0959453B1 (fr) 2004-01-07
EP0959453A3 (fr) 2001-11-21
DE59908223D1 (de) 2004-02-12
DE19822582A1 (de) 1999-11-25

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