FR3079552B1 - TURBOMACHINE WITH AT LEAST ONE UPSTREAM VANE INCLUDING A BLOWING PORTION TO LIMIT THE RESONANCE OF A DOWNSTREAM VANE - Google Patents

TURBOMACHINE WITH AT LEAST ONE UPSTREAM VANE INCLUDING A BLOWING PORTION TO LIMIT THE RESONANCE OF A DOWNSTREAM VANE Download PDF

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Publication number
FR3079552B1
FR3079552B1 FR1852767A FR1852767A FR3079552B1 FR 3079552 B1 FR3079552 B1 FR 3079552B1 FR 1852767 A FR1852767 A FR 1852767A FR 1852767 A FR1852767 A FR 1852767A FR 3079552 B1 FR3079552 B1 FR 3079552B1
Authority
FR
France
Prior art keywords
turbomachine
upstream
downstream
vane
resonance
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.)
Active
Application number
FR1852767A
Other languages
French (fr)
Other versions
FR3079552A1 (en
Inventor
Antoine Bertrand Francois Mazeau
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.)
Safran Aircraft Engines SAS
Original Assignee
Safran Aircraft Engines SAS
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 Safran Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Priority to FR1852767A priority Critical patent/FR3079552B1/en
Publication of FR3079552A1 publication Critical patent/FR3079552A1/en
Application granted granted Critical
Publication of FR3079552B1 publication Critical patent/FR3079552B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • F01D5/187—Convection cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/324—Blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/665—Sound attenuation by means of resonance chambers or interference
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/12—Fluid guiding means, e.g. vanes
    • F05D2240/121—Fluid guiding means, e.g. vanes related to the leading edge of a stator vane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/12—Fluid guiding means, e.g. vanes
    • F05D2240/122—Fluid guiding means, e.g. vanes related to the trailing edge of a stator vane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/303—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the leading edge of a rotor blade
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Une turbomachine (1) d'aéronef s'étendant longitudinalement selon un axe (X) et configurée pour permettre la circulation d'un flux d'air (F) dans la turbomachine (1) d'amont en aval, la turbomachine (1) comportant au moins une rangée d'aubes amont (2B) et au moins une rangée d'aubes aval (3A) disposée directement en aval de la rangée d'aubes amont (2B), au moins une aube aval (3A) comportant au moins une portion de résonance (4), chaque portion de résonance (4) ayant des modes de structure définissant une pluralité de fréquences propres, la turbomachine (1) induisant une fréquence d'excitation vibratoire sur la portion de résonance (4), la fréquence d'excitation vibratoire étant fonction du régime de la turbomachine (1), chaque aube amont (2B) comportant au moins une portion de soufflage (5) configurée pour modifier le sillage de l'aube amont (2B).An aircraft turbomachine (1) extending longitudinally along an axis (X) and configured to allow the circulation of an air flow (F) in the turbomachine (1) from upstream to downstream, the turbomachine (1 ) comprising at least one row of upstream vanes (2B) and at least one row of downstream vanes (3A) arranged directly downstream of the row of upstream vanes (2B), at least one downstream vane (3A) comprising at at least one resonance portion (4), each resonance portion (4) having structure modes defining a plurality of natural frequencies, the turbomachine (1) inducing a vibratory excitation frequency on the resonance portion (4), the vibratory excitation frequency being a function of the speed of the turbomachine (1), each upstream blade (2B) comprising at least one blowing portion (5) configured to modify the wake of the upstream blade (2B).

FR1852767A 2018-03-29 2018-03-29 TURBOMACHINE WITH AT LEAST ONE UPSTREAM VANE INCLUDING A BLOWING PORTION TO LIMIT THE RESONANCE OF A DOWNSTREAM VANE Active FR3079552B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1852767A FR3079552B1 (en) 2018-03-29 2018-03-29 TURBOMACHINE WITH AT LEAST ONE UPSTREAM VANE INCLUDING A BLOWING PORTION TO LIMIT THE RESONANCE OF A DOWNSTREAM VANE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1852767A FR3079552B1 (en) 2018-03-29 2018-03-29 TURBOMACHINE WITH AT LEAST ONE UPSTREAM VANE INCLUDING A BLOWING PORTION TO LIMIT THE RESONANCE OF A DOWNSTREAM VANE
FR1852767 2018-03-29

Publications (2)

Publication Number Publication Date
FR3079552A1 FR3079552A1 (en) 2019-10-04
FR3079552B1 true FR3079552B1 (en) 2021-06-04

Family

ID=62092153

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1852767A Active FR3079552B1 (en) 2018-03-29 2018-03-29 TURBOMACHINE WITH AT LEAST ONE UPSTREAM VANE INCLUDING A BLOWING PORTION TO LIMIT THE RESONANCE OF A DOWNSTREAM VANE

Country Status (1)

Country Link
FR (1) FR3079552B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1263010A (en) * 1960-07-21 1961-06-05 M A N Turbomotoren G M B H Method and device for modifying, in fluid flow machines, the deviation given by a blade grid
US6004095A (en) * 1996-06-10 1999-12-21 Massachusetts Institute Of Technology Reduction of turbomachinery noise
US6055805A (en) * 1997-08-29 2000-05-02 United Technologies Corporation Active rotor stage vibration control
JP2007278187A (en) * 2006-04-07 2007-10-25 Ihi Corp Axial flow fluid device and blade
US20150050154A1 (en) * 2013-05-23 2015-02-19 Kristian R. DIXON Airfoil trailing edge apparatus for noise reduction

Also Published As

Publication number Publication date
FR3079552A1 (en) 2019-10-04

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