IL105236A - Active noise control system for helicopter - Google Patents

Active noise control system for helicopter

Info

Publication number: IL105236A
Authority: IL; Israel
Prior art keywords: actuators; high frequency; control system; active noise; noise control
Prior art date: 1992-04-16

Application number

IL10523693A

Other languages

English (en)

Hebrew (he)

Original Assignee

United Technologies 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.)

1992-04-16

Filing date

1993-03-31

Publication date

1996-10-31

1993-03-31 Application filed by United Technologies Corp filed Critical United Technologies Corp

1996-10-31 Publication of IL105236A publication Critical patent/IL105236A/en

Links

230000005540 biological transmission Effects 0.000 claims description 217
230000004044 response Effects 0.000 claims description 12
238000001514 detection method Methods 0.000 claims 5
238000013461 design Methods 0.000 description 31
230000006870 function Effects 0.000 description 27
230000000875 corresponding effect Effects 0.000 description 26
238000013459 approach Methods 0.000 description 21
230000009467 reduction Effects 0.000 description 13
238000013016 damping Methods 0.000 description 9
244000309464 bull Species 0.000 description 8
230000003993 interaction Effects 0.000 description 7
238000011109 contamination Methods 0.000 description 6
230000005284 excitation Effects 0.000 description 6
230000002596 correlated effect Effects 0.000 description 5
238000000034 method Methods 0.000 description 5
238000011160 research Methods 0.000 description 5
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238000004458 analytical method Methods 0.000 description 2
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230000008878 coupling Effects 0.000 description 2
238000010168 coupling process Methods 0.000 description 2
238000005859 coupling reaction Methods 0.000 description 2
238000005516 engineering process Methods 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
230000002411 adverse Effects 0.000 description 1
230000000712 assembly Effects 0.000 description 1
238000000429 assembly Methods 0.000 description 1
238000005452 bending Methods 0.000 description 1
230000009286 beneficial effect Effects 0.000 description 1
230000009977 dual effect Effects 0.000 description 1
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230000003071 parasitic effect Effects 0.000 description 1
238000009420 retrofitting Methods 0.000 description 1
238000001228 spectrum Methods 0.000 description 1
230000001629 suppression Effects 0.000 description 1
238000001845 vibrational spectrum Methods 0.000 description 1

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/001—Vibration damping devices
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C2220/00—Active noise reduction systems
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2186—Gear casings

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Aviation & Aerospace Engineering (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Vibration Prevention Devices (AREA)
Soundproofing, Sound Blocking, And Sound Damping (AREA)
Catching Or Destruction (AREA)
Traffic Control Systems (AREA)

IL10523693A 1992-04-16 1993-03-31 Active noise control system for helicopter IL105236A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/870,434 US5310137A (en)	1992-04-16	1992-04-16	Helicopter active noise control system

Publications (1)

Publication Number	Publication Date
IL105236A true IL105236A (en)	1996-10-31

Family

ID=25355362

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IL10523693A IL105236A (en)	1992-04-16	1993-03-31	Active noise control system for helicopter

Country Status (10)

Country	Link
US (1)	US5310137A (fr)
EP (1)	EP0636085B1 (fr)
JP (1)	JPH07505843A (fr)
KR (1)	KR100258023B1 (fr)
AU (1)	AU663194B2 (fr)
CA (1)	CA2132198C (fr)
DE (1)	DE69305843T2 (fr)
ES (1)	ES2095645T3 (fr)
IL (1)	IL105236A (fr)
WO (1)	WO1993021064A1 (fr)

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US5526292A (en) *	1994-11-30	1996-06-11	Lord Corporation	Broadband noise and vibration reduction
US5713438A (en) *	1996-03-25	1998-02-03	Lord Corporation	Method and apparatus for non-model based decentralized adaptive feedforward active vibration control
US5716300A (en) *	1996-05-01	1998-02-10	Sikorsky Aircraft Corporation	Isolated ring gear for planetary gear drive systems
US6002778A (en) *	1996-08-07	1999-12-14	Lord Corporation	Active structural control system and method including active vibration absorbers (AVAS)
US5802184A (en) *	1996-08-15	1998-09-01	Lord Corporation	Active noise and vibration control system
US6065742A (en) *	1996-09-13	2000-05-23	Lord Corporation	Multi-directional tuned vibration absorber
US5845236A (en) *	1996-10-16	1998-12-01	Lord Corporation	Hybrid active-passive noise and vibration control system for aircraft
US6009985A (en) *	1997-02-10	2000-01-04	Lord Corporation	Efficient multi-directional active vibration absorber assembly
US5884736A (en) *	1997-03-31	1999-03-23	Virginia Tech Intellectual Properties, Inc.	Active dual reaction mass absorber for vibration control
US5947457A (en) *	1997-04-08	1999-09-07	Lord Corporation	Fluid-filled active vibration absorber
US5974155A (en) *	1997-04-15	1999-10-26	The University Of Dayton	System and method for actively damping boom noise
US5961899A (en) *	1997-07-15	1999-10-05	Lord Corporation	Vibration control apparatus and method for calender rolls and the like
US6138947A (en) *	1997-08-22	2000-10-31	Sikorsky Aircraft Corporation	Active noise control system for a defined volume
FR2769396B1 (fr) *	1997-10-02	2000-11-10	Eurocopter France	Dispositif pour reduire le bruit de raies a l'interieur d'un aeronef a voilure tournante, notamment un helicoptere
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US6105900A (en) *	1997-12-23	2000-08-22	Sikorsky Aircraft Corporation	Active noise control system for a helicopter gearbox mount
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US6138949A (en) *	1998-10-30	2000-10-31	Sikorsky Aircraft Corporation	Main rotor pylon support structure
US6229898B1 (en)	1998-12-23	2001-05-08	Sikorsky Aircraft Corporation	Active vibration control system using on-line system identification with enhanced noise reduction
US6865466B2 (en) *	2000-04-27	2005-03-08	American Axle & Manufacturing, Inc.	Active vibration cancellation of gear mesh vibration
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
US6416016B1 (en)	2000-09-15	2002-07-09	Sikorsky Aircraft Corporation	Actuator for an active transmission mount isolation system
US6634862B2 (en)	2000-09-15	2003-10-21	General Dynamics Advanced Information Systems, Inc.	Hydraulic actuator
US6467723B1 (en)	2000-10-10	2002-10-22	Lord Corporation	Active vibration control system for helicopter with improved actustor placement
US7190796B1 (en)	2000-11-06	2007-03-13	Design, Imaging & Control, Inc.	Active feedback-controlled bass coloration abatement
US6493689B2 (en)	2000-12-29	2002-12-10	General Dynamics Advanced Technology Systems, Inc.	Neural net controller for noise and vibration reduction
US7305094B2 (en) *	2001-01-12	2007-12-04	University Of Dayton	System and method for actively damping boom noise in a vibro-acoustic enclosure
US6869375B2 (en) *	2001-02-27	2005-03-22	Sikorsky Aircraft Corporation	High output force actuator for an active vibration control system
US6513753B1 (en) *	2001-08-14	2003-02-04	Sikorsky Aircraft Corporation	Transmission support structure for a rotary wing aircraft
US7958801B2 (en) *	2003-10-01	2011-06-14	Sikorsky Aircraft Corporation	Harmonic force generator for an active vibration control system
DE10361890B4 (de) *	2003-12-23	2007-03-29	Airbus Deutschland Gmbh	Vorrichtung zum labormäßigen Testen von abgeschlossenen Teilkabinen für Verkehrsflugzeuge
US7296766B2 (en) *	2004-07-13	2007-11-20	Sikorsky Aircraft Corporation	Lightweight structural damping assembly
US8435002B2 (en) *	2004-08-30	2013-05-07	Lord Corporation	Helicopter vibration control system and rotating assembly rotary forces generators for canceling vibrations
US8090482B2 (en) *	2007-10-25	2012-01-03	Lord Corporation	Distributed active vibration control systems and rotary wing aircraft with suppressed vibrations
US7722322B2 (en) *	2004-08-30	2010-05-25	Lord Corporation	Computer system and program product for controlling vibrations
US8267652B2 (en) *	2004-08-30	2012-09-18	Lord Corporation	Helicopter hub mounted vibration control and circular force generation systems for canceling vibrations
US8162606B2 (en) *	2004-08-30	2012-04-24	Lord Corporation	Helicopter hub mounted vibration control and circular force generation systems for canceling vibrations
US7448854B2 (en)	2004-08-30	2008-11-11	Lord Corporation	Helicopter vibration control system and rotary force generator for canceling vibrations
GB0419512D0 (en) *	2004-09-02	2004-10-06	Avon Vibration Man Syst Ltd	Controlling vibrations
EP2071213B1 (fr) *	2007-12-11	2014-12-03	General Electric Company	Réduction du bruit de la boîte de vitesse par contrôle électrique de la commande
US8403643B2 (en) *	2008-03-20	2013-03-26	Sikorsky Aircraft Corporation	Dual frequency hub mounted vibration suppressor system
US8800736B2 (en) *	2008-05-30	2014-08-12	Design, Imaging & Control, Inc.	Adjustable tuned mass damper systems
DE102009032497B4 (de)	2009-07-09	2017-03-09	Airbus Defence and Space GmbH	Abstimmung des Schalldämmmaßes durch verteilte Punktmassen
JP4823368B2 (ja) *	2010-02-26	2011-11-24	三菱重工業株式会社	振動低減装置および振動低減方法
FR2975668B1 (fr)	2011-05-27	2013-07-05	Eurocopter France	Procede et aeronef muni d'un dispositif pour la reduction de vibrations
US9777788B2 (en) *	2012-01-10	2017-10-03	Bell Helicopter Textron Inc.	Rotorcraft vibration suppression system in a four corner pylon mount configuration
US10293925B2 (en) *	2013-01-18	2019-05-21	Lord Corporation	Systems and methods for implementing directional force weighting with circular force generators
DE102014101732A1 (de) *	2014-02-12	2015-08-13	Deutsches Zentrum für Luft- und Raumfahrt e.V.	Schallreduktionssystem für Flugzeuge
EP3194264B1 (fr)	2014-08-07	2022-06-22	Sikorsky Aircraft Corporation	Système d'actionnement d'aéronef produisant une charge anti-vibrations
WO2016111733A1 (fr) *	2014-12-16	2016-07-14	Sikorsky Aircraft Corporation	Générateur de force d'amplitude variable
US20180265186A1 (en) *	2017-03-15	2018-09-20	Bell Helicopter Textron Inc.	Vibration Isolation Systems for Advancing Blade Concept Rotorcraft
US11932380B2 (en) *	2017-03-15	2024-03-19	Textron Innovations Inc.	Vibration isolation systems for compound helicopters
EP3379529A1 (fr)	2017-03-21	2018-09-26	RUAG Schweiz AG	Système de commande active du bruit dans un aéronef et procédé pour réduire le bruit dans l'aéronef
US10745098B2 (en) *	2017-09-05	2020-08-18	The Boeing Company	Energy-absorbing under-floor airframe
US10994834B2 (en) *	2018-02-22	2021-05-04	Sikorsky Aircraft Corporation	Case mounted transmission AVC force generators
CN114201819B (zh) *	2021-12-06	2024-01-12	南京航空航天大学	一种融合声阵列和在桨控制的直升机主动噪声抑制装置
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1992
- 1992-04-16 US US07/870,434 patent/US5310137A/en not_active Expired - Lifetime
1993
- 1993-03-31 IL IL10523693A patent/IL105236A/en not_active IP Right Cessation
- 1993-04-14 JP JP5518574A patent/JPH07505843A/ja active Pending
- 1993-04-14 WO PCT/US1993/003486 patent/WO1993021064A1/fr not_active Ceased
- 1993-04-14 KR KR1019940703666A patent/KR100258023B1/ko not_active Expired - Fee Related
- 1993-04-14 ES ES93910595T patent/ES2095645T3/es not_active Expired - Lifetime
- 1993-04-14 CA CA002132198A patent/CA2132198C/fr not_active Expired - Fee Related
- 1993-04-14 AU AU41029/93A patent/AU663194B2/en not_active Ceased
- 1993-04-14 DE DE69305843T patent/DE69305843T2/de not_active Expired - Lifetime
- 1993-04-14 EP EP93910595A patent/EP0636085B1/fr not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US5310137A (en)	1994-05-10
AU663194B2 (en)	1995-09-28
AU4102993A (en)	1993-11-18
JPH07505843A (ja)	1995-06-29
CA2132198C (fr)	2000-01-25
EP0636085A1 (fr)	1995-02-01
DE69305843T2 (de)	1997-05-28
KR950700843A (ko)	1995-02-20
ES2095645T3 (es)	1997-02-16
EP0636085B1 (fr)	1996-11-06
WO1993021064A1 (fr)	1993-10-28
KR100258023B1 (ko)	2000-06-01
CA2132198A1 (fr)	1993-10-28
DE69305843D1 (de)	1996-12-12

Legal Events

Date	Code	Title
1997-03-18	FF	Patent granted
1997-08-14	KB	Patent renewed
1999-08-17	KB	Patent renewed
2001-06-14	RH	Patent void
2003-06-24	KB	Patent renewed
2008-01-06	MM9K	Patent not in force due to non-payment of renewal fees

Publication	Publication Date	Title
US5310137A (en)	1994-05-10	Helicopter active noise control system
US6138947A (en)	2000-10-31	Active noise control system for a defined volume
EP0884498B1 (fr)	2002-02-06	Batis actifs pour moteurs d'avions
US5716300A (en)	1998-02-10	Isolated ring gear for planetary gear drive systems
US8439299B2 (en)	2013-05-14	Active cancellation and vibration isolation with feedback and feedforward control for an aircraft engine mount
US6467723B1 (en)	2002-10-22	Active vibration control system for helicopter with improved actustor placement
WO2005087583A1 (fr)	2005-09-22	Generateur de force monte sur une boite de vitesses
US6105900A (en)	2000-08-22	Active noise control system for a helicopter gearbox mount
EP1301395B1 (fr)	2004-12-01	Systeme d'amortissement actif du bruit
EP2731868A1 (fr)	2014-05-21	Système et procédé pour réduire la transmission des vibrations d'un premier corps en vibration à un deuxième corps
US6224014B1 (en)	2001-05-01	Device for reducing line noise inside a rotary-wing aircraft, especially a helicopter
US20020094274A1 (en)	2002-07-18	Passive device for noise reduction
EP0639500A1 (fr)	1995-02-22	Helicoptere
CA2235309A1 (fr)	1999-10-20	Dispositif antivibrations et anti-bruit, notamment pour les aeronefs
Bebesel et al.	2001	Reduction of interior noise in helicopters by using active gearbox struts-Results of flight tests
Miller et al.	1995	Passive, Active and Hybrid Solutions for Aircraft Interior Noise Problems
JPWO1994021517A1 (ja)	1995-05-11	ヘリコプタ