WO1999010877A3 - Active noise control system for a defined volume - Google Patents

Active noise control system for a defined volume Download PDF

Info

Publication number
WO1999010877A3
WO1999010877A3 PCT/US1998/017121 US9817121W WO9910877A3 WO 1999010877 A3 WO1999010877 A3 WO 1999010877A3 US 9817121 W US9817121 W US 9817121W WO 9910877 A3 WO9910877 A3 WO 9910877A3
Authority
WO
WIPO (PCT)
Prior art keywords
defined volume
control system
subsystem
acoustic noise
undesirable acoustic
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.)
Ceased
Application number
PCT/US1998/017121
Other languages
French (fr)
Other versions
WO1999010877A2 (en
Inventor
William A Welsh
Charles A Yoerkie Jr
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.)
Sikorsky Aircraft Corp
Original Assignee
Sikorsky Aircraft 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26735621&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1999010877(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sikorsky Aircraft Corp filed Critical Sikorsky Aircraft Corp
Priority to JP2000508108A priority Critical patent/JP4137375B2/en
Priority to EP98957306A priority patent/EP1031136B2/en
Priority to DE69825309T priority patent/DE69825309T3/en
Publication of WO1999010877A2 publication Critical patent/WO1999010877A2/en
Publication of WO1999010877A3 publication Critical patent/WO1999010877A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • 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
    • G10K11/17883—General system configurations using both a reference signal and an error signal the reference signal being derived from a machine operating condition, e.g. engine RPM or vehicle speed
    • 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
    • G10K2210/106—Boxes, i.e. active box covering a noise source; Enclosures
    • 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
    • G10K2210/1281—Aircraft, e.g. spacecraft, airplane or helicopter
    • 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
    • G10K2210/1282—Automobiles
    • 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
    • G10K2210/301—Computational
    • G10K2210/3027—Feedforward
    • 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
    • G10K2210/501—Acceleration, e.g. for accelerometers
    • 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
    • G10K2210/511—Narrow band, e.g. implementations for single frequency cancellation

Landscapes

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

Abstract

An active noise control system (12) for minimizing undesirable acoustic noise in a defined volume, wherein the undesirable acoustic noise is generated by high frequency structural vibrations emanating from a vibration source structurally coupled to the defined volume at a structural interface. The active noise control system (12) comprises a sensor subsystem (26) disposed in combination with the defined volume (14) for sensing the undesirable acoustic noise in the defined volume (14), an actuator subsystem (28) disposed proximal to the structural interface (22), and a controller (30) functionally interconnecting the sensor subsystem (26) to the actuator subsystem (28), the controller (30) being operative to receive input from the sensor subsystem (26) and to transmit command signals to the actuator subsystem (28) in response thereto for generating selected high frequency counter-vibrations that are interactive with the high frequency structural vibrations to minimize the undesirable acoustic noise in the defined volume (14).
PCT/US1998/017121 1997-08-22 1998-08-18 Active noise control system for a defined volume Ceased WO1999010877A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000508108A JP4137375B2 (en) 1997-08-22 1998-08-18 Active noise control system for defined space
EP98957306A EP1031136B2 (en) 1997-08-22 1998-08-18 Active noise control system for a defined volume of a helicopter
DE69825309T DE69825309T3 (en) 1997-08-22 1998-08-18 ACTIVE NOISE CONTROL ARRANGEMENT IN A DEFINED VOLUME OF A HELICOPTER

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US5671097P 1997-08-22 1997-08-22
US60/056,710 1997-08-22
US08/997,435 US6138947A (en) 1997-08-22 1997-12-23 Active noise control system for a defined volume
US08/997,435 1997-12-23

Publications (2)

Publication Number Publication Date
WO1999010877A2 WO1999010877A2 (en) 1999-03-04
WO1999010877A3 true WO1999010877A3 (en) 1999-06-03

Family

ID=26735621

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/017121 Ceased WO1999010877A2 (en) 1997-08-22 1998-08-18 Active noise control system for a defined volume

Country Status (6)

Country Link
US (1) US6138947A (en)
EP (1) EP1031136B2 (en)
JP (1) JP4137375B2 (en)
DE (1) DE69825309T3 (en)
TW (1) TW378186B (en)
WO (1) WO1999010877A2 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6105900A (en) * 1997-12-23 2000-08-22 Sikorsky Aircraft Corporation Active noise control system for a helicopter gearbox mount
DE19813959B4 (en) 1998-03-28 2009-05-14 Eurocopter Deutschland Gmbh Device for structure-borne sound suppression
US6832973B1 (en) * 2000-07-21 2004-12-21 William A. Welsh System for active noise reduction
US6644590B2 (en) * 2000-09-15 2003-11-11 General Dynamics Advanced Information Systems, Inc. Active system and method for vibration and noise reduction
US7107127B2 (en) 2001-02-27 2006-09-12 Sikorsky Aircraft Corporation Computationally efficient means for optimal control with control constraints
AU2002244175A1 (en) * 2001-02-27 2002-09-12 Sikorsky Aircraft Corporation System for computationally efficient active control of tonal sound or vibration
WO2002069318A1 (en) * 2001-02-27 2002-09-06 Sikorsky Aircraft Corporation Adaptation performance improvements for active control of sound or vibration
US7003380B2 (en) * 2001-02-27 2006-02-21 Sikorsky Aircraft Corporation System for computationally efficient adaptation of active control of sound or vibration
DE10154391A1 (en) 2001-11-06 2003-05-22 Eurocopter Deutschland Device and method for isolating vibrations in a transmission path
US7296766B2 (en) * 2004-07-13 2007-11-20 Sikorsky Aircraft Corporation Lightweight structural damping assembly
US8162606B2 (en) 2004-08-30 2012-04-24 Lord Corporation Helicopter hub mounted vibration control and circular force generation systems for canceling vibrations
US8584820B2 (en) 2006-10-31 2013-11-19 Nissan Motor Co., Ltd. Vibration reducing device and vibration reducing method
US8791012B2 (en) * 2007-03-21 2014-07-29 Texas Instruments Incorporated Methods and apparatus for manufacturing semiconductor devices
US7792651B2 (en) * 2007-04-26 2010-09-07 General Electric Company Methods and systems for computing gear modifications
US8262344B2 (en) * 2008-04-02 2012-09-11 Hamilton Sundstrand Corporation Thermal management system for a gas turbine engine
US9777788B2 (en) * 2012-01-10 2017-10-03 Bell Helicopter Textron Inc. Rotorcraft vibration suppression system in a four corner pylon mount configuration
RU2485604C1 (en) * 2012-02-13 2013-06-20 Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) Method of assessing sound insulation of passenger aircraft cabin
FR2997219B1 (en) 2012-10-23 2014-12-05 Eurocopter France METHOD AND ACTIVE DEVICE FOR TREATING NOISE ON BOARD OF A VEHICLE, AND VEHICLE EQUIPPED WITH SUCH A DEVICE
WO2014138574A2 (en) * 2013-03-08 2014-09-12 Lord Corporation Active noise and vibration control systems and methods
US10040446B2 (en) * 2016-10-24 2018-08-07 International Business Machines Corporation Reducing noise generated by a motorized device
FR3063972A1 (en) 2017-03-20 2018-09-21 Airbus Helicopters ANTIVIBRATORY SYSTEMS EQUIPPING A GIRAVION, ASSOCIATED GIRAVION AND METHOD OF ADJUSTING AN ANTI-VIBRATION SYSTEM
EP3379529A1 (en) 2017-03-21 2018-09-26 RUAG Schweiz AG Active noise control system in an aircraft and method to reduce the noise in the aircraft
CN114201819B (en) * 2021-12-06 2024-01-12 南京航空航天大学 An active noise suppression device for helicopters that combines acoustic array and on-paddle control

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689821A (en) * 1985-09-23 1987-08-25 Lockheed Corporation Active noise control system
US4819182A (en) * 1985-06-21 1989-04-04 Westland Plc Method and apparatus for reducing vibration of a helicopter fuselage
GB2217951A (en) * 1988-04-27 1989-11-01 Univ Southampton Active control of sound in enclosures
US5310137A (en) * 1992-04-16 1994-05-10 United Technologies Corporation Helicopter active noise control system

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US4562589A (en) * 1982-12-15 1985-12-31 Lord Corporation Active attenuation of noise in a closed structure
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US5423658A (en) * 1993-11-01 1995-06-13 General Electric Company Active noise control using noise source having adaptive resonant frequency tuning through variable ring loading
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Patent Citations (4)

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US4819182A (en) * 1985-06-21 1989-04-04 Westland Plc Method and apparatus for reducing vibration of a helicopter fuselage
US4689821A (en) * 1985-09-23 1987-08-25 Lockheed Corporation Active noise control system
GB2217951A (en) * 1988-04-27 1989-11-01 Univ Southampton Active control of sound in enclosures
US5310137A (en) * 1992-04-16 1994-05-10 United Technologies Corporation Helicopter active noise control system

Also Published As

Publication number Publication date
JP4137375B2 (en) 2008-08-20
EP1031136A2 (en) 2000-08-30
DE69825309T2 (en) 2005-08-11
US6138947A (en) 2000-10-31
WO1999010877A2 (en) 1999-03-04
TW378186B (en) 2000-01-01
EP1031136A4 (en) 2000-09-15
JP2003526800A (en) 2003-09-09
EP1031136B2 (en) 2011-01-19
DE69825309T3 (en) 2011-07-21
DE69825309D1 (en) 2004-09-02
EP1031136B1 (en) 2004-07-28

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