IN2009KN03822A - - Google Patents
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- Publication number
- IN2009KN03822A IN2009KN03822A IN3822KON2009A IN2009KN03822A IN 2009KN03822 A IN2009KN03822 A IN 2009KN03822A IN 3822KON2009 A IN3822KON2009 A IN 3822KON2009A IN 2009KN03822 A IN2009KN03822 A IN 2009KN03822A
- Authority
- IN
- India
- Prior art keywords
- weight
- hub
- aircraft
- rotation
- axis
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
- B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
- B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
- B06B1/162—Making use of masses with adjustable amount of eccentricity
- B06B1/164—Making use of masses with adjustable amount of eccentricity the amount of eccentricity being automatically variable as a function of the running condition, e.g. speed, direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/001—Vibration damping devices
-
- 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
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
-
- 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
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/1005—Vibration-dampers; Shock-absorbers using inertia effect characterised by active control of the mass
- F16F7/1011—Vibration-dampers; Shock-absorbers using inertia effect characterised by active control of the mass by electromagnetic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/001—Vibration damping devices
- B64C2027/003—Vibration damping devices mounted on rotor hub, e.g. a rotary force generator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/001—Vibration damping devices
- B64C2027/004—Vibration damping devices using actuators, e.g. active systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Vibration Prevention Devices (AREA)
- Centrifugal Separators (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2007/010109 WO2008133614A1 (en) | 2007-04-24 | 2007-04-24 | Rotor hub vibration attenuator |
Publications (1)
Publication Number | Publication Date |
---|---|
IN2009KN03822A true IN2009KN03822A (de) | 2015-10-09 |
Family
ID=39925938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN3822KON2009 IN2009KN03822A (de) | 2007-04-24 | 2007-04-24 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8424799B2 (de) |
EP (1) | EP2150460B1 (de) |
CN (1) | CN101674982B (de) |
CA (1) | CA2685025C (de) |
DE (1) | DE07861293T1 (de) |
IN (1) | IN2009KN03822A (de) |
WO (1) | WO2008133614A1 (de) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8162606B2 (en) | 2004-08-30 | 2012-04-24 | Lord Corporation | Helicopter hub mounted vibration control and circular force generation systems for canceling vibrations |
WO2006135405A2 (en) | 2004-08-30 | 2006-12-21 | Lord Corporation | Helicopter vibration control system and rotary force generator for canceling vibrations |
US8435002B2 (en) * | 2004-08-30 | 2013-05-07 | Lord Corporation | Helicopter vibration control system and rotating assembly rotary forces generators for canceling vibrations |
US8267652B2 (en) | 2004-08-30 | 2012-09-18 | Lord Corporation | Helicopter hub mounted vibration control and circular force generation systems for canceling vibrations |
US7722322B2 (en) | 2004-08-30 | 2010-05-25 | Lord Corporation | Computer system and program product for controlling vibrations |
US8090482B2 (en) | 2007-10-25 | 2012-01-03 | Lord Corporation | Distributed active vibration control systems and rotary wing aircraft with suppressed vibrations |
CN102588504B (zh) * | 2012-02-02 | 2014-11-12 | 哈尔滨飞机工业集团有限责任公司 | 一种直升机用动力吸振器 |
US10407157B2 (en) * | 2013-03-14 | 2019-09-10 | Bell Helicopter Textron Inc. | Spinner fairing assembly |
US20150097074A1 (en) * | 2013-10-03 | 2015-04-09 | Sikorsky Aircraft Corporation | Dual-frequency active vibration control |
CN104494823B (zh) * | 2013-11-22 | 2016-05-25 | 北京航空航天大学 | 一种基于环路结构的新型减振旋翼 |
EP3094556B1 (de) * | 2014-01-15 | 2018-03-14 | LORD Corporation | Nabenbasierte aktive schwingungssteuerungssysteme, vorrichtungen und verfahren mit versetzt ungleichmässigen rotoren |
WO2016081681A1 (en) | 2014-11-19 | 2016-05-26 | Sikorsky Aircraft Corporation | Method of balancing a main rotor hub |
WO2016111733A1 (en) * | 2014-12-16 | 2016-07-14 | Sikorsky Aircraft Corporation | Variable amplitude force generator |
US11186363B2 (en) | 2015-10-21 | 2021-11-30 | Sikorsky Aircraft Corporation | Electric propulsion system for a rotary wing aircraft |
USD808328S1 (en) | 2016-09-14 | 2018-01-23 | Bell Helicopter Textron Inc. | Foldable tiltrotor aircraft |
US10752343B2 (en) * | 2016-10-18 | 2020-08-25 | Sikorsky Aircraft Corporation | Electric propulsion system for a rotary wing aircraft |
US10577090B2 (en) | 2017-02-16 | 2020-03-03 | Sikorsky Aircraft Corporation | Electric propulsion system with overrunning clutch for a rotary-wing aircraft |
US11555528B2 (en) | 2017-04-04 | 2023-01-17 | Moog Inc. | Variable rotary mass vibration suppression system |
US11396369B2 (en) | 2017-06-27 | 2022-07-26 | Moog Inc. | Variable rotary radially supported mass vibration suppression system |
CA3068426A1 (en) * | 2017-06-27 | 2019-01-03 | Moog Inc. | Variable rotary pendulous mass vibration suppression system |
US10457380B2 (en) * | 2017-06-28 | 2019-10-29 | Bell Textron Inc. | Articulated rotor systems with pitch independent damping |
US10974824B2 (en) | 2017-07-20 | 2021-04-13 | Sikorsky Aircraft Corporation | Electric powered direct drive rotor motor |
US10676182B2 (en) * | 2017-07-20 | 2020-06-09 | Sikorsky Aircraft Corporation | Tilting coaxial rotor for a rotary wing aircraft |
EP3476728B1 (de) * | 2017-10-31 | 2019-12-25 | LEONARDO S.p.A. | Rotor für ein schwebefähiges flugzeug und verfahren zur reduzierung von vibrationen auf den mast eines solchen rotors |
ES2856923T3 (es) * | 2017-11-02 | 2021-09-28 | Soletanche Freyssinet | Dispositivo para amortiguar las vibraciones en una estructura y uso del dispositivo |
US10648529B2 (en) * | 2017-11-21 | 2020-05-12 | Bell Helicopter Textron Inc. | Hydraulic vibration control |
US10407166B2 (en) | 2018-01-08 | 2019-09-10 | Sikorsky Aircraft Corporation | Yaw moment supplement for directional control |
EP3533710B1 (de) * | 2018-02-28 | 2021-01-27 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | Passive neigungswinkelverstellung |
US10597150B2 (en) | 2018-04-24 | 2020-03-24 | Textron Innovations Inc. | Articulated rotor systems with blade-to-blade damping |
US10933984B2 (en) | 2018-07-13 | 2021-03-02 | Textron Innovations Inc. | Hub mounted vibration reduction system for coaxial rotor systems |
CN109774919A (zh) * | 2018-11-06 | 2019-05-21 | 珠海隆华直升机科技有限公司 | 大力矩拉杆传动系统及直升机 |
USD974276S1 (en) * | 2018-11-15 | 2023-01-03 | Textron Innovations, Inc. | Aircraft spinner |
USD909949S1 (en) | 2018-11-15 | 2021-02-09 | Bell Helicopter Textron Inc. | Tiltrotor aircraft |
USD909278S1 (en) | 2018-11-15 | 2021-02-02 | Bell Helicopter Textron Inc. | Foldable tiltrotor aircraft |
USD974277S1 (en) | 2018-11-15 | 2023-01-03 | Textron Innovations, Inc. | Aircraft payload enclosure |
CN112389642A (zh) * | 2020-10-30 | 2021-02-23 | 哈尔滨飞机工业集团有限责任公司 | 一种用于直升机减振的动力吸振器结构 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2425650A (en) * | 1943-07-16 | 1947-08-12 | Edward A Stalker | Helicopter rotor with bladebalancing mechanism |
US3219120A (en) | 1964-12-31 | 1965-11-23 | Boeing Co | Vibration absorbing system |
GB1120193A (en) | 1964-12-31 | 1968-07-17 | Boeing Co | Vibration absorbing device |
US3617020A (en) * | 1970-04-27 | 1971-11-02 | Boeing Co | Vibration control system |
GB1465266A (en) * | 1973-04-26 | 1977-02-23 | Westland Aircraft Ltd | Rotors for rotary wing aircraft |
FR2416838A1 (fr) * | 1978-02-10 | 1979-09-07 | Aerospatiale | Dispositif pour attenuer les vibrations d'un rotor de giravion |
FR2733483B1 (fr) * | 1995-04-27 | 1997-07-04 | Eurocopter France | Dispositif d'attenuation de vibrations pour rotor d'helicoptere |
FR2749901B1 (fr) * | 1996-06-12 | 2000-12-08 | Eurocopter France | Dispositif pour reduire les vibrations engendrees par un rotor de sustentation d'un aeronef a voilure tournante |
US5825663A (en) | 1996-11-04 | 1998-10-20 | Gec-Marconi Aerospace Inc. | Vibration control system |
US6139271A (en) * | 1998-03-17 | 2000-10-31 | Chadwick-Helmuth Company, Inc. | Helicopter rotor blade weighting |
US7958801B2 (en) * | 2003-10-01 | 2011-06-14 | Sikorsky Aircraft Corporation | Harmonic force generator for an active vibration control system |
US9046148B2 (en) * | 2003-10-14 | 2015-06-02 | Sikorsky Aircraft Corporation | Active force generation system for minimizing vibration in a rotating system |
WO2006135405A2 (en) * | 2004-08-30 | 2006-12-21 | Lord Corporation | Helicopter vibration control system and rotary force generator for canceling vibrations |
-
2007
- 2007-04-24 WO PCT/US2007/010109 patent/WO2008133614A1/en active Application Filing
- 2007-04-24 CN CN200780052754.XA patent/CN101674982B/zh not_active Expired - Fee Related
- 2007-04-24 IN IN3822KON2009 patent/IN2009KN03822A/en unknown
- 2007-04-24 EP EP07861293.4A patent/EP2150460B1/de active Active
- 2007-04-24 US US12/595,577 patent/US8424799B2/en active Active
- 2007-04-24 DE DE07861293T patent/DE07861293T1/de active Pending
- 2007-04-24 CA CA2685025A patent/CA2685025C/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20100209242A1 (en) | 2010-08-19 |
EP2150460B1 (de) | 2015-06-10 |
WO2008133614A1 (en) | 2008-11-06 |
EP2150460A4 (de) | 2013-02-27 |
CN101674982A (zh) | 2010-03-17 |
DE07861293T1 (de) | 2011-01-27 |
CA2685025A1 (en) | 2008-11-06 |
US8424799B2 (en) | 2013-04-23 |
CA2685025C (en) | 2014-03-11 |
EP2150460A1 (de) | 2010-02-10 |
CN101674982B (zh) | 2013-10-09 |
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