JP6917030B2 - 湾曲した後面を使用して、キャビティ流れの振動と音響負荷を抑制するための方法およびキャビティ - Google Patents

湾曲した後面を使用して、キャビティ流れの振動と音響負荷を抑制するための方法およびキャビティ Download PDF

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JP6917030B2
JP6917030B2 JP2018541286A JP2018541286A JP6917030B2 JP 6917030 B2 JP6917030 B2 JP 6917030B2 JP 2018541286 A JP2018541286 A JP 2018541286A JP 2018541286 A JP2018541286 A JP 2018541286A JP 6917030 B2 JP6917030 B2 JP 6917030B2
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cavity
convex curved
curved surface
pressure
flow
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JP2019510174A5 (https=
JP2019510174A (ja
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コーエン，ヤコブ
ダス，サディプ
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/002—Influencing flow of fluids by influencing the boundary layer
    • F15D1/0025—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply
    • F15D1/003—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/002—Influencing flow of fluids by influencing the boundary layer
    • F15D1/0025—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply
    • F15D1/003—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions
    • F15D1/005—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions in the form of dimples
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C23/00—Influencing air flow over aircraft surfaces, not otherwise provided for
    • 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
    • G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
    • 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
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/001—Devices not provided for in the groups B64C25/02 - B64C25/68
    • B64C2025/003—Means for reducing landing gear noise, or turbulent flow around it, e.g. landing gear doors used as deflectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D1/00—Dropping, ejecting, releasing or receiving articles, liquids, or the like, in flight
    • B64D1/02—Dropping, ejecting, or releasing articles
    • B64D1/04—Dropping, ejecting, or releasing articles the articles being explosive, e.g. bombs
    • B64D1/06—Bomb releasing; Bomb doors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/008—Reduction of noise or vibration
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/2087—Means to cause rotational flow of fluid [e.g., vortex generator]

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP2018541286A 2016-02-02 2017-02-02 湾曲した後面を使用して、キャビティ流れの振動と音響負荷を抑制するための方法およびキャビティ Active JP6917030B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662289936P 2016-02-02 2016-02-02
US62/289,936 2016-02-02
PCT/IL2017/050127 WO2017134666A1 (en) 2016-02-02 2017-02-02 Method and cavity for suppression of cavity flow oscillations and acoustic loads using curved rear face

Publications (3)

Publication Number Publication Date
JP2019510174A JP2019510174A (ja) 2019-04-11
JP2019510174A5 JP2019510174A5 (https=) 2021-03-11
JP6917030B2 true JP6917030B2 (ja) 2021-08-11

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JP2018541286A Active JP6917030B2 (ja) 2016-02-02 2017-02-02 湾曲した後面を使用して、キャビティ流れの振動と音響負荷を抑制するための方法およびキャビティ

Country Status (5)

Country Link
US (1) US10823207B2 (https=)
EP (1) EP3411598B1 (https=)
JP (1) JP6917030B2 (https=)
KR (1) KR20180114089A (https=)
WO (1) WO2017134666A1 (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10876732B2 (en) * 2016-10-19 2020-12-29 Gloyer-Taylor Laboratories Llc Scalable acoustically-stable combustion chamber and design methods
JP6691896B2 (ja) * 2017-08-25 2020-05-13 三菱重工業株式会社 航空機
CA3037923C (en) 2018-03-29 2025-12-09 Bombardier Inc. System and method for improving the operation of an aircraft
TR202022407A1 (tr) * 2020-12-30 2022-07-21 Tusas Tuerk Havacilik Ve Uzay Sanayii Anonim Sirketi Bir kavite.
FR3120699B1 (fr) * 2021-03-10 2023-03-17 Airbus Operations Sas Dispositif de mesure acoustique

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578264A (en) 1968-07-09 1971-05-11 Battelle Development Corp Boundary layer control of flow separation and heat exchange
US4718620A (en) 1984-10-15 1988-01-12 Braden John A Terraced channels for reducing afterbody drag
US5340054A (en) 1991-02-20 1994-08-23 The United States Of America As Represented By The Secretary Of The Navy Suppressor of oscillations in airframe cavities
US5699981A (en) 1996-03-18 1997-12-23 The United States Of America As Represented By The Secretary Of The Air Force Aircraft cavity acoustic resonance suppression system
US6050527A (en) 1997-12-19 2000-04-18 The Boeing Company Flow control device to eliminate cavity resonance
US6446904B1 (en) 2001-10-05 2002-09-10 The United States Of America As Represented By The Secretary Of The Air Force Aircraft weapons bay high frequency acoustic suppression apparatus
US6739554B1 (en) * 2003-06-02 2004-05-25 The United States Of America As Represented By The Secretary Of The Air Force Aircraft weapons bay acoustic resonance suppression system
US7322195B2 (en) 2005-04-19 2008-01-29 United Technologies Corporation Acoustic dampers
US8684040B2 (en) * 2007-05-25 2014-04-01 The Regents Of The University Of Michigan Reduction of vortex induced forces and motion through surface roughness control
NL1035216C2 (nl) * 2007-07-24 2009-01-27 Kick Off Ltd Wrijvingsweerstand reducerende laag en werkwijze voor de vervaardiging daarvan.
ES2326356B1 (es) * 2008-03-31 2010-07-13 Maria Desamparados Segura Mecho Elemento impulsor aerodinamico.
DE102008059536A1 (de) 2008-11-29 2010-06-02 Eugen Radtke Oberflächenstruktur
JP3165679U (ja) * 2010-11-18 2011-01-27 瑞麟 林 流体に対する抵抗体
GB201213451D0 (en) * 2012-07-27 2012-09-12 Imp Innovations Ltd Drag reduction

Also Published As

Publication number Publication date
US10823207B2 (en) 2020-11-03
EP3411598A1 (en) 2018-12-12
EP3411598B1 (en) 2019-08-21
US20190040883A1 (en) 2019-02-07
JP2019510174A (ja) 2019-04-11
WO2017134666A1 (en) 2017-08-10
KR20180114089A (ko) 2018-10-17

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