EP0959453B1 - Aktives Geräuschunterdrückungssystem für lärmabstrahlende Flächen - Google Patents
Aktives Geräuschunterdrückungssystem für lärmabstrahlende Flächen Download PDFInfo
- Publication number
- EP0959453B1 EP0959453B1 EP99109724A EP99109724A EP0959453B1 EP 0959453 B1 EP0959453 B1 EP 0959453B1 EP 99109724 A EP99109724 A EP 99109724A EP 99109724 A EP99109724 A EP 99109724A EP 0959453 B1 EP0959453 B1 EP 0959453B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- noise
- velocity sensors
- signals
- actuator
- sensors
- 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 - Lifetime
Links
- 239000011159 matrix material Substances 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 claims description 4
- 230000001629 suppression Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims 3
- 239000011796 hollow space material Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 8
- 239000011888 foil Substances 0.000 description 6
- 239000002033 PVDF binder Substances 0.000 description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 101000666896 Homo sapiens V-type immunoglobulin domain-containing suppressor of T-cell activation Proteins 0.000 description 1
- 102100038282 V-type immunoglobulin domain-containing suppressor of T-cell activation Human genes 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- IJJVMEJXYNJXOJ-UHFFFAOYSA-N fluquinconazole Chemical compound C=1C=C(Cl)C=C(Cl)C=1N1C(=O)C2=CC(F)=CC=C2N=C1N1C=NC=N1 IJJVMEJXYNJXOJ-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
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 a device for active noise cancellation Noise-radiating surface according to the preamble of patent claim 1.
- U.S. Patent No. 5,415,522 shows active noise control with sound sources to generate a secondary field.
- a noise-radiating element held by clips over an inner wall section.
- the object of the present invention is therefore a device for active noise suppression to create, by means of which vibration modes with at least an odd-numbered component can be detected and suppressed.
- a plate 1 for example can be a structural or body part and which is caused by a source of interference 2, e.g. an internal combustion engine that is excited to vibrate, two piezoelectric Slides 3 and 4 applied one above the other.
- the piezoelectric foils 3 and 4 consist for example of stretched PVDF, which due to their manufacturing process have unidirectional piezoelectric properties.
- the two Slides 3 and 4 are arranged one above the other so that their are represented by arrows preferred piezoelectric directions in the plate plane perpendicular to each other are oriented.
- the film 3 is thus for Deflections of the plate surface in the x direction are sensitive and the film 4 for Deflections in the y direction.
- the voltage signals generated by the foils 3 and 4 are a controller 5 supplied, which processes the signals according to known methods and an actuator 6 controls.
- the actuator 6 can either point or area on the Plate 1 act in such a way that vibration-related deflections of the Plate is counteracted. For a so-called "feed forward" regulation the vibration signals from the interference source 2 are also detected and fed to the controller become.
- 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 in the left column supply the sum signal S 1y , those in the next column the sum signal S 2y etc.
- each attachment element consists of a hard one Shell 42.1, which is provided with side walls 42.2, which in turn on the Rest plate 41 and, together with the 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 be determined only with difficulty.
- the vibrations and attachment elements the radiated 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)
Description
Die Erfindung wird im Folgenden anhand der Figuren näher beschrieben. Es zeigen:
- Fig. 1
- ein aktives System zur Geräuschunterdrückung mit zwei achsenselektiven Schnellesensoren;
- Fig. 2
- streifenförmige, achsenselektive Schnellesensoren auf einer Struktur;
- Fig. 3
- matrixförmig angeordnete Schnellesensoren auf einer Struktur gemäß einer bevorzugten Ausführungsform der Erfindung; und
- Fig. 4a und 4b
- aktive Vorsatzelemente zur Geräuschunterdrückung.
Claims (4)
- Vorrichtung zur aktiven Geräuschunterdrückung einer lärmabstrahlenden Fläche (31; 41), mit
mehreren Schnellesensoren (32), die in Form einer Matrix auf der Fläche (31; 41) angeordnet sind, um Schwingungen der Fläche in zwei orthogonalen Richtungen (x, y) zu erfassen, und mindestens einem, durch Signale der Schnellesensoren ansteuerbaren Aktuator (6, 47) zur Einwirkung auf die Fläche (31; 41),
wobei die Matrix mindestens zwei Zeilen und mindestens zwei Spalten von Schnellesensoren (32) umfasst, dadurch gekennzeichnet, dass die Schnellesensoren (32) derart elektrisch geschaltet sind, dass aus den Signalen (S1x, S2x, S3x, S4x) aller Zeilen der Matrix ein zusammengefasstes Summensignal (Sx) für die erste Richtung (x) gebildet wird, und aus den Signalen (S1y, S2y, S3y, S4y) aller Spalten der Matrix ein zusammengefasstes Summensignal (Sy) für die zweite Richtung (y) gebildet wird, wobei die jeweils über alle Zeilen und Spalten zusammengefassten Summensignale (Sx, Sy) den Aktuator (6; 47) ansteuern. - Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Schnellesensoren (32) durch mehrere punktförmige Beschleunigungs- oder Deformationsaufnehmer gebildet werden.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Schnellesensoren (44, 45) und der Aktuator (47) auf einer harten Schale (42.1) angeordnet sind, welche über Seitenwände (42.2) unter Bildung eines Hohlraumes (43) mit der lärmabstrahlenden Fläche (41) verbindbar sind.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass mehrere nebeneinander angeordnete Schalen (42.1) ein flächendeckendes Muster bilden.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19822582 | 1998-05-20 | ||
| DE19822582A DE19822582B4 (de) | 1998-05-20 | 1998-05-20 | Aktive Geräuschunterdrückung für lärmabstrahlende Flächen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0959453A2 EP0959453A2 (de) | 1999-11-24 |
| EP0959453A3 EP0959453A3 (de) | 2001-11-21 |
| EP0959453B1 true EP0959453B1 (de) | 2004-01-07 |
Family
ID=7868372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99109724A Expired - Lifetime EP0959453B1 (de) | 1998-05-20 | 1999-05-18 | Aktives Geräuschunterdrückungssystem für lärmabstrahlende Flächen |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6178246B1 (de) |
| EP (1) | EP0959453B1 (de) |
| DE (2) | DE19822582B4 (de) |
Families Citing this family (24)
| 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 |
| US8059827B2 (en) * | 2006-10-16 | 2011-11-15 | Bsh Home Appliances Corporation | Noise reduction apparatus |
| US8054984B2 (en) * | 2006-10-16 | 2011-11-08 | Bsh Home Appliances Corporation | Sound altering apparatus |
| CA2606442A1 (en) * | 2006-10-16 | 2008-04-16 | Bsh Home Appliances Corporation | Sound altering 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 |
| JP2015521062A (ja) | 2012-05-11 | 2015-07-27 | スリーエム イノベイティブ プロパティズ カンパニー | 雑音振動制御機能を有する生体音響センサ |
| AU2013318975B2 (en) * | 2012-09-24 | 2017-02-02 | Sekisui Chemical Co., Ltd. | Leakage detector, leakage detection method, and pipe network monitoring apparatus |
| 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 |
| WO2018089345A1 (en) | 2016-11-08 | 2018-05-17 | Andersen Corporation | Active noise cancellation systems and methods |
| JP7378426B2 (ja) | 2018-05-04 | 2023-11-13 | アンダーセン・コーポレーション | ノイズ減衰のためのマルチバンド周波数ターゲティング |
| KR102530589B1 (ko) * | 2018-09-20 | 2023-05-08 | 엘지디스플레이 주식회사 | 디스플레이 장치 및 이를 이용한 컴퓨팅 장치 |
| 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 |
Family Cites Families (8)
| 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 |
-
1998
- 1998-05-20 DE DE19822582A patent/DE19822582B4/de not_active Expired - Fee Related
-
1999
- 1999-05-18 EP EP99109724A patent/EP0959453B1/de not_active Expired - Lifetime
- 1999-05-18 DE DE59908223T patent/DE59908223D1/de not_active Expired - Lifetime
- 1999-05-20 US US09/315,770 patent/US6178246B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE19822582B4 (de) | 2004-02-12 |
| EP0959453A3 (de) | 2001-11-21 |
| DE59908223D1 (de) | 2004-02-12 |
| DE19822582A1 (de) | 1999-11-25 |
| EP0959453A2 (de) | 1999-11-24 |
| US6178246B1 (en) | 2001-01-23 |
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