ES2025662T3 - Cabina en aeronaves. - Google Patents

Cabina en aeronaves.

Info

Publication number
ES2025662T3
ES2025662T3 ES198787305600T ES87305600T ES2025662T3 ES 2025662 T3 ES2025662 T3 ES 2025662T3 ES 198787305600 T ES198787305600 T ES 198787305600T ES 87305600 T ES87305600 T ES 87305600T ES 2025662 T3 ES2025662 T3 ES 2025662T3
Authority
ES
Spain
Prior art keywords
propeller
cabin
aircraft
noise
angle
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
Application number
ES198787305600T
Other languages
English (en)
Inventor
Stephen John Elliott
Philip Arthur Nelson
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.)
UK Secretary of State for Trade and Industry
Original Assignee
UK Secretary of State for Trade and Industry
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 UK Secretary of State for Trade and Industry filed Critical UK Secretary of State for Trade and Industry
Application granted granted Critical
Publication of ES2025662T3 publication Critical patent/ES2025662T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/40—Sound or heat insulation, e.g. using insulation blankets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/46—Arrangements of, or constructional features peculiar to, multiple propellers
    • B64C11/50—Phase synchronisation between multiple propellers
    • 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
    • G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive 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
    • G10K2210/123—Synchrophasors or other applications where multiple noise sources are driven with a particular phase relationship
    • 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
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3046—Multiple acoustic inputs, multiple acoustic outputs

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Feedback Control In General (AREA)

Abstract

EN AVIONES DE HELICE O REACCION, LOS NIVELES DE RUIDO EN CABINA PUEDEN REDUCIRSE AJUSTANTO LA RELACION DE FASE ENTRE UN REACTOR O HELICE DE REFERENCIA Y ALGUN O TODOS LOS DEMAS REACTORES O HELICES. UNA CABINA (1) DE AVION CONTINE CUATRO MICROFONOS (2, 3, 4, 5) Y DOS ALTAVOCES (6, 7) QUE FORMAN LOS ELEMENTOS ACTIVOS DEL SISTEMA DE CONTROL DE RUIDO. LA SALIDA DEL MICROFONO ALIMENTA A LOS AMPLIFICADORES (12, 13, 14, 15) UN PROCESADOR DE SEÑAL DIGITAL (11) QUE TIENE UN ALGORITMO DE ADAPATACION EN UN DEPOSITO DE MEMORIA. EL PROCESADOR GENERA UNA SEÑAL DE ERROR QUE SE UTILIZA PARA AJUSTAR EL ANGULO DE SINCROFASE ENTRE LA HELICE (10) DE REFERENCIA Y LA HELICE (9) SINCRONIZADA, CONTROLADO POR UN SINCRONIZADOR DE FASE (8). ASI EL ANGULO DE SINCRONIZACION DE FASE VARIA DINAMICAMENTE DURANTE EL VUELO PARA MINIMIZAR EL RUIDO DE HELICE EN LA CABINA SOBRE UN RANGO DE CONDICIONES DE VUELO.
ES198787305600T 1986-06-23 1987-06-23 Cabina en aeronaves. Expired - Lifetime ES2025662T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868615315A GB8615315D0 (en) 1986-06-23 1986-06-23 Aircraft cabin noise control apparatus

Publications (1)

Publication Number Publication Date
ES2025662T3 true ES2025662T3 (es) 1992-04-01

Family

ID=10599961

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198787305600T Expired - Lifetime ES2025662T3 (es) 1986-06-23 1987-06-23 Cabina en aeronaves.

Country Status (9)

Country Link
US (1) US4947356A (es)
EP (2) EP0310621A1 (es)
JP (1) JP2620274B2 (es)
BR (1) BR8707730A (es)
CA (1) CA1328004C (es)
DE (1) DE3772474D1 (es)
ES (1) ES2025662T3 (es)
GB (1) GB8615315D0 (es)
WO (1) WO1987007974A1 (es)

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US5170433A (en) * 1986-10-07 1992-12-08 Adaptive Control Limited Active vibration control
GB2222053B (en) * 1988-08-17 1993-03-31 Topexpress Ltd Signal processing means for sensing a periodic signal in the presence of another interfering periodic noise
DE4026070C2 (de) * 1989-08-22 2000-05-11 Volkswagen Ag Einrichtung zur aktiven Verringerung eines Geräuschpegels am Ort von Personen
GB2237415A (en) * 1989-10-20 1991-05-01 Fokker Bv Propeller blade synchrophasing
DE3941635A1 (de) * 1989-12-16 1991-06-20 Man Nutzfahrzeuge Ag Verfahren zum regenerieren eines russfilters einer diesel-brennkraftmaschine, sowie vorrichtung zur durchfuehrung dieses verfahrens
US5133017A (en) * 1990-04-09 1992-07-21 Active Noise And Vibration Technologies, Inc. Noise suppression system
US5233540A (en) * 1990-08-30 1993-08-03 The Boeing Company Method and apparatus for actively reducing repetitive vibrations
US5245552A (en) * 1990-10-31 1993-09-14 The Boeing Company Method and apparatus for actively reducing multiple-source repetitive vibrations
US5148402A (en) * 1990-12-21 1992-09-15 United Technologies Corporation Method for reducing aircraft cabin noise and vibration
US5221185A (en) * 1991-08-05 1993-06-22 General Electric Company Method and apparatus for synchronizing rotating machinery to reduce noise
US5370340A (en) * 1991-11-04 1994-12-06 General Electric Company Active control of aircraft engine noise using vibrational inputs
US5313399A (en) * 1992-01-21 1994-05-17 The Charles Stark Draper Laboratories, Inc. Adaptive synchronous vibration suppression apparatus
US5251263A (en) * 1992-05-22 1993-10-05 Andrea Electronics Corporation Adaptive noise cancellation and speech enhancement system and apparatus therefor
JP3276214B2 (ja) * 1992-08-31 2002-04-22 マツダ株式会社 車両の振動低減装置
US5311453A (en) * 1992-09-11 1994-05-10 Noise Cancellation Technologies, Inc. Variable point sampling
US5692054A (en) * 1992-10-08 1997-11-25 Noise Cancellation Technologies, Inc. Multiple source self noise cancellation
WO1994009483A1 (en) * 1992-10-08 1994-04-28 Noise Cancellation Technologies, Inc. Multiple source self noise cancellation
US5715162A (en) * 1992-10-13 1998-02-03 United Technologies Corporation Correlative filter for a synchrophaser
US5732143A (en) * 1992-10-29 1998-03-24 Andrea Electronics Corp. Noise cancellation apparatus
FR2704969B1 (fr) * 1993-05-06 1995-07-28 Centre Scient Tech Batiment Dispositif d'atténuation acoustique à double paroi active.
US5382134A (en) * 1993-11-01 1995-01-17 General Electric Company Active noise control using noise source having adaptive resonant frequency tuning through stiffness variation
US5391053A (en) * 1993-11-01 1995-02-21 General Electric Company Active noise control using noise source having adaptive resonant frequency tuning through variable panel loading
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
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
US5453943A (en) * 1994-02-18 1995-09-26 United Technologies Corporation Adaptive synchrophaser for reducing aircraft cabin noise and vibration
GB2287851A (en) * 1994-03-25 1995-09-27 Lotus Car Time domain adaptive control system for active noise cancellation
US5586065A (en) * 1994-05-31 1996-12-17 The Boeing Company Method and apparatus for minimizing aircraft cabin noise
US5551650A (en) * 1994-06-16 1996-09-03 Lord Corporation Active mounts for aircraft engines
US5479823A (en) * 1994-11-03 1996-01-02 Chrysler Corporation Method and apparatus for inducing audio vibrations
US5478199A (en) * 1994-11-28 1995-12-26 General Electric Company Active low noise fan assembly
JP3654980B2 (ja) * 1995-11-30 2005-06-02 富士通株式会社 能動騒音制御装置及び波形変換装置
US5802184A (en) * 1996-08-15 1998-09-01 Lord Corporation Active noise and vibration control system
US5789678A (en) * 1996-10-22 1998-08-04 General Electric Company Method for reducing noise and/or vibration from multiple rotating machines
US6138947A (en) * 1997-08-22 2000-10-31 Sikorsky Aircraft Corporation Active noise control system for a defined volume
US6078673A (en) * 1997-10-03 2000-06-20 Hood Technology Corporation Apparatus and method for active control of sound transmission through aircraft fuselage walls
US6105900A (en) * 1997-12-23 2000-08-22 Sikorsky Aircraft Corporation Active noise control system for a helicopter gearbox mount
US6363345B1 (en) 1999-02-18 2002-03-26 Andrea Electronics Corporation System, method and apparatus for cancelling noise
US6594367B1 (en) 1999-10-25 2003-07-15 Andrea Electronics Corporation Super directional beamforming design and implementation
US6644590B2 (en) 2000-09-15 2003-11-11 General Dynamics Advanced Information Systems, Inc. Active system and method for vibration and noise reduction
DE10212036B4 (de) * 2002-03-19 2009-01-02 Eads Deutschland Gmbh Verfahren zur Geräuschreduktion für mehrmotorige Propellerflugzeuge
US8196856B2 (en) * 2007-04-11 2012-06-12 Textron Innovations Inc. Method for suppressing vibration in a tiltrotor aircraft
FR2934245B1 (fr) * 2008-07-24 2010-10-01 Airbus France Aeronef comprenant un moteur commande par synchrophasage
US9020158B2 (en) * 2008-11-20 2015-04-28 Harman International Industries, Incorporated Quiet zone control system
US8135140B2 (en) 2008-11-20 2012-03-13 Harman International Industries, Incorporated System for active noise control with audio signal compensation
US8718289B2 (en) * 2009-01-12 2014-05-06 Harman International Industries, Incorporated System for active noise control with parallel adaptive filter configuration
US8189799B2 (en) * 2009-04-09 2012-05-29 Harman International Industries, Incorporated System for active noise control based on audio system output
US8199924B2 (en) * 2009-04-17 2012-06-12 Harman International Industries, Incorporated System for active noise control with an infinite impulse response filter
US8077873B2 (en) * 2009-05-14 2011-12-13 Harman International Industries, Incorporated System for active noise control with adaptive speaker selection
US10013900B2 (en) * 2014-09-23 2018-07-03 Amazon Technologies, Inc. Vehicle noise control and communication
US10232931B2 (en) 2015-12-18 2019-03-19 Amazon Technologies, Inc. Selecting propellers for performance and noise shaping
US9745050B2 (en) 2015-12-18 2017-08-29 Amazon Technologies, Inc. Selecting propellers for performance and noise shaping
US11312478B2 (en) * 2017-11-27 2022-04-26 United States Of America As Represented By The Administrator Of Nasa Adaptive phase control architecture for reduction of community noise from distributed propulsion vehicles

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US3689175A (en) * 1970-08-11 1972-09-05 Piqua Aircraft Co Inc Apparatus for controlling the speed and phase of engines
US4025724A (en) * 1975-08-12 1977-05-24 Westinghouse Electric Corporation Noise cancellation apparatus
US4245955A (en) * 1978-12-14 1981-01-20 The Cessna Aircraft Company Phase and speed control system
ZA828700B (en) * 1981-11-26 1983-09-28 Sound Attenuators Ltd Method of and apparatus for cancelling vibrations from a source of repetitive vibrations
GB2126837B (en) 1982-08-19 1986-07-23 British Aerospace Noise suppression
GB8317086D0 (en) * 1983-06-23 1983-07-27 Swinbanks M A Attenuation of sound waves
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US4659283A (en) * 1985-09-30 1987-04-21 United Technologies Corporation Propeller Synchrophaser® device and mode logic
US4715559A (en) * 1986-05-15 1987-12-29 Fuller Christopher R Apparatus and method for global noise reduction

Also Published As

Publication number Publication date
CA1328004C (en) 1994-03-22
EP0252647A1 (en) 1988-01-13
US4947356A (en) 1990-08-07
EP0252647B1 (en) 1991-08-28
DE3772474D1 (de) 1991-10-02
WO1987007974A1 (en) 1987-12-30
BR8707730A (pt) 1989-08-15
JPH01502973A (ja) 1989-10-12
GB8615315D0 (en) 1986-07-30
JP2620274B2 (ja) 1997-06-11
EP0310621A1 (en) 1989-04-12

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