FR2384943A1 - Ailettes pour turbomachine, leur procede de fabrication et turbomachine realisee avec ces ailettes - Google Patents

Ailettes pour turbomachine, leur procede de fabrication et turbomachine realisee avec ces ailettes

Info

Publication number
FR2384943A1
FR2384943A1 FR7738869A FR7738869A FR2384943A1 FR 2384943 A1 FR2384943 A1 FR 2384943A1 FR 7738869 A FR7738869 A FR 7738869A FR 7738869 A FR7738869 A FR 7738869A FR 2384943 A1 FR2384943 A1 FR 2384943A1
Authority
FR
France
Prior art keywords
fin
fins
turbomachine
inserts
base metal
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.)
Granted
Application number
FR7738869A
Other languages
English (en)
Other versions
FR2384943B1 (fr
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of FR2384943A1 publication Critical patent/FR2384943A1/fr
Application granted granted Critical
Publication of FR2384943B1 publication Critical patent/FR2384943B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
    • B23P6/005—Repairing turbine components, e.g. moving or stationary blades, rotors using only replacement pieces of a particular form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/16—Form or construction for counteracting blade 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/50—Vibration damping features

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'ailette selon l'invention se distingue par un talon 14 et une partie aérodynamique en forme de lame 12, l'ensemble de ces deux parties étant en un métal de base, et des pièces rapportées 36 en un matériau composite formé de fibres longues dans une matrice de préférence en même métal que le métal de base, ces pièces rapportées étant liées au métal de base dans des cavités formées sur les côtés opposés de l'ailette afin de modifier les caractéristiques de résonance à la vitesse critique provoquant les contraintes principales dans l'ailette du fait des vibrations, les pièces rapportées ayant une étendue suffisante pour couvrir les points nodaux sélectionnés. Une telle ailette convient en particulier pour les ventilateurs et les compresseurs des turbomachines à écoulement axial.
FR7738869A 1976-12-22 1977-12-22 Ailettes pour turbomachine, leur procede de fabrication et turbomachine realisee avec ces ailettes Granted FR2384943A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/753,317 US4118147A (en) 1976-12-22 1976-12-22 Composite reinforcement of metallic airfoils

Publications (2)

Publication Number Publication Date
FR2384943A1 true FR2384943A1 (fr) 1978-10-20
FR2384943B1 FR2384943B1 (fr) 1983-12-09

Family

ID=25030123

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7738869A Granted FR2384943A1 (fr) 1976-12-22 1977-12-22 Ailettes pour turbomachine, leur procede de fabrication et turbomachine realisee avec ces ailettes

Country Status (7)

Country Link
US (1) US4118147A (fr)
JP (1) JPS5395304A (fr)
CA (1) CA1075161A (fr)
DE (1) DE2756684C2 (fr)
FR (1) FR2384943A1 (fr)
GB (1) GB1540989A (fr)
IT (1) IT1088799B (fr)

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US7094033B2 (en) * 2004-01-21 2006-08-22 General Electric Company Methods and apparatus for assembling gas turbine engines
US7024744B2 (en) * 2004-04-01 2006-04-11 General Electric Company Frequency-tuned compressor stator blade and related method
EP1640562A1 (fr) * 2004-09-23 2006-03-29 Siemens Aktiengesellschaft Procédé de syntonisation de fréquence d'une aube de turbine et aube de turbine
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US7497664B2 (en) * 2005-08-16 2009-03-03 General Electric Company Methods and apparatus for reducing vibrations induced to airfoils
US7429166B2 (en) * 2005-12-20 2008-09-30 General Electric Company Methods and apparatus for gas turbine engines
US7766625B2 (en) * 2006-03-31 2010-08-03 General Electric Company Methods and apparatus for reducing stress in turbine buckets
US7547194B2 (en) * 2006-07-31 2009-06-16 General Electric Company Rotor blade and method of fabricating the same
US20080269348A1 (en) * 2006-11-07 2008-10-30 Phil Skolnick Novel Arylbicyclo[3.1.0]Hexylamines And Methods And Compositions For Their Preparation And Use
US7607287B2 (en) * 2007-05-29 2009-10-27 United Technologies Corporation Airfoil acoustic impedance control
US20090155082A1 (en) * 2007-12-18 2009-06-18 Loc Duong Method to maximize resonance-free running range for a turbine blade
DE102008047043A1 (de) * 2008-09-13 2010-03-18 Mtu Aero Engines Gmbh Ersatzteil für eine Gasturbinen-Schaufel einer Gasturbine, Gasturbinen-Schaufel sowie ein Verfahren zur Reparatur einer Gasturbinen-Schaufel
US8585368B2 (en) 2009-04-16 2013-11-19 United Technologies Corporation Hybrid structure airfoil
US8083489B2 (en) * 2009-04-16 2011-12-27 United Technologies Corporation Hybrid structure fan blade
US8043065B2 (en) * 2009-05-01 2011-10-25 General Electric Company Wind turbine blade with prefabricated leading edge segments
US20110052405A1 (en) * 2009-09-02 2011-03-03 United Technologies Corporation Composite airfoil with locally reinforced tip region
US20110182741A1 (en) * 2010-01-26 2011-07-28 United Technologies Corporation Composite fan blade leading edge recamber
US20110229334A1 (en) * 2010-03-16 2011-09-22 United Technologies Corporation Composite leading edge sheath and dovetail root undercut
US9181814B2 (en) * 2010-11-24 2015-11-10 United Technology Corporation Turbine engine compressor stator
US9556742B2 (en) * 2010-11-29 2017-01-31 United Technologies Corporation Composite airfoil and turbine engine
US8807955B2 (en) * 2011-06-30 2014-08-19 United Technologies Corporation Abrasive airfoil tip
US8763360B2 (en) * 2011-11-03 2014-07-01 United Technologies Corporation Hollow fan blade tuning using distinct filler materials
US9085989B2 (en) * 2011-12-23 2015-07-21 General Electric Company Airfoils including compliant tip
US9752441B2 (en) 2012-01-31 2017-09-05 United Technologies Corporation Gas turbine rotary blade with tip insert
US9150305B2 (en) 2012-02-29 2015-10-06 Sikorsky Aircraft Corporation Vibration absorbing device for flexbeams
FR3008185B1 (fr) 2013-07-03 2017-02-10 Snecma Insert comprenant une surface externe faisant partie d'au moins un profil aerodynamique d'une aube de test de turbomachine
FR3010463B1 (fr) * 2013-09-11 2015-08-21 IFP Energies Nouvelles Impulseur de pompe polyphasique avec des moyens d'amplification et de repartition d'ecoulements de jeu.
DE102015203868A1 (de) * 2015-03-04 2016-09-08 Rolls-Royce Deutschland Ltd & Co Kg Fanschaufel für einen Flugantrieb
FR3041684B1 (fr) * 2015-09-28 2021-12-10 Snecma Aube comprenant un bouclier de bord d'attaque et procede de fabrication de l'aube
US10570917B2 (en) 2016-08-01 2020-02-25 United Technologies Corporation Fan blade with composite cover
US11131314B2 (en) * 2016-09-14 2021-09-28 Raytheon Technologies Corporation Fan blade with structural spar and integrated leading edge
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FR3081370B1 (fr) * 2018-05-22 2020-06-05 Safran Aircraft Engines Corps d'aube et aube en materiau composite ayant un renfort fibreux compose d'un tissage tridimensionnel et de fibres courtes et leur procede de fabrication
CN111828386B (zh) * 2019-04-16 2022-01-28 中国航发商用航空发动机有限责任公司 组合式风扇叶片
FR3100471B1 (fr) * 2019-09-10 2022-12-09 Safran Aircraft Engines Préforme pour aube composite
US11225874B2 (en) 2019-12-20 2022-01-18 Raytheon Technologies Corporation Turbine engine rotor blade with castellated tip surface
FR3109181B1 (fr) * 2020-04-09 2022-07-15 Safran Aircraft Engines Aube composée de plusieurs matériaux
US11795831B2 (en) 2020-04-17 2023-10-24 Rtx Corporation Multi-material vane for a gas turbine engine
US11572796B2 (en) 2020-04-17 2023-02-07 Raytheon Technologies Corporation Multi-material vane for a gas turbine engine
US11255199B2 (en) * 2020-05-20 2022-02-22 Rolls-Royce Corporation Airfoil with shaped mass reduction pocket
US11946391B2 (en) * 2021-03-11 2024-04-02 General Electric Company Turbine engine with composite airfoil having a non-metallic leading edge protective wrap
US11725520B2 (en) 2021-11-04 2023-08-15 Rolls-Royce Corporation Fan rotor for airfoil damping
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US2828941A (en) * 1952-12-24 1958-04-01 United Aircraft Corp Blade damping means
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Also Published As

Publication number Publication date
DE2756684A1 (de) 1978-06-29
CA1075161A (fr) 1980-04-08
GB1540989A (en) 1979-02-21
JPS5395304A (en) 1978-08-21
IT1088799B (it) 1985-06-10
US4118147A (en) 1978-10-03
JPS6232359B2 (fr) 1987-07-14
DE2756684C2 (de) 1986-11-06
FR2384943B1 (fr) 1983-12-09

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Legal Events

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