FR3137125B1 - Bladed turbomachine assembly comprising blades joined together in pairs at the level of their platforms - Google Patents

Bladed turbomachine assembly comprising blades joined together in pairs at the level of their platforms Download PDF

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Publication number
FR3137125B1
FR3137125B1 FR2206156A FR2206156A FR3137125B1 FR 3137125 B1 FR3137125 B1 FR 3137125B1 FR 2206156 A FR2206156 A FR 2206156A FR 2206156 A FR2206156 A FR 2206156A FR 3137125 B1 FR3137125 B1 FR 3137125B1
Authority
FR
France
Prior art keywords
platforms
pairs
level
joined together
turbomachine assembly
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
FR2206156A
Other languages
French (fr)
Other versions
FR3137125A1 (en
Inventor
Hubert Jean-Yves Illand
Jean-Claude Christian Taillant
Denis Gabriel Trahot
Yannick Durand
Denis Jean Armel Busquet
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
Safran Ceramics SA
Original Assignee
Safran Aircraft Engines SAS
Safran Ceramics SA
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, Safran Ceramics SA filed Critical Safran Aircraft Engines SAS
Priority to FR2206156A priority Critical patent/FR3137125B1/en
Publication of FR3137125A1 publication Critical patent/FR3137125A1/en
Application granted granted Critical
Publication of FR3137125B1 publication Critical patent/FR3137125B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
    • 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
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/282—Selecting composite materials, e.g. blades with reinforcing filaments
    • 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
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/284—Selection of ceramic materials
    • 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
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/24—Blade-to-blade connections, e.g. for damping vibrations using wire or the like
    • 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
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/36—Retaining components in desired mutual position by a form fit connection, e.g. by interlocking
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
    • F05D2300/603—Composites; e.g. fibre-reinforced
    • F05D2300/6033—Ceramic matrix composites [CMC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Ceramic Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L’invention concerne un ensemble rotatif de turbomachine s’étendant autour d’un axe de rotation (AX), comprenant un disque portant des aubes (21a, 21b), dans lequel chaque aube (21a, 21b) s’étend selon une direction d’envergure radiale, depuis un pied (22a) par lequel elle est solidarisée au disque jusqu’à un talon (27a) opposé au pied (22a), ce talon (27a) comportant une plateforme (28a, 28b), deux plateformes circonférentiellement adjacentes ayant des bords contigus (32a, 33b) en regard l’un de l’autre. Cet ensemble comporte au moins un élément de serrage (35) enserrant bord à bord deux plateformes (28a, 28b) circonférentiellement contiguës, chacune des deux plateformes (28a, 28b) comportant un trou la traversant de part en part, et l’élément de serrage (35) traverse ces deux trous pour exercer entre ces deux plateformes (28a, 28b) un effort de tension orienté circonférentiellement par rapport à l’axe de rotation (AX). Figure pour l’abrégé : Figure 3The invention relates to a rotating turbomachine assembly extending around an axis of rotation (AX), comprising a disk carrying blades (21a, 21b), in which each blade (21a, 21b) extends in one direction. of radial span, from a foot (22a) by which it is secured to the disc to a heel (27a) opposite the foot (22a), this heel (27a) comprising a platform (28a, 28b), two platforms circumferentially adjacent ones having contiguous edges (32a, 33b) facing each other. This assembly comprises at least one clamping element (35) enclosing edge to edge two circumferentially contiguous platforms (28a, 28b), each of the two platforms (28a, 28b) comprising a hole passing through it from side to side, and the clamping element clamp (35) passes through these two holes to exert between these two platforms (28a, 28b) a tension force oriented circumferentially relative to the axis of rotation (AX). Figure for abstract: Figure 3

FR2206156A 2022-06-22 2022-06-22 Bladed turbomachine assembly comprising blades joined together in pairs at the level of their platforms Active FR3137125B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2206156A FR3137125B1 (en) 2022-06-22 2022-06-22 Bladed turbomachine assembly comprising blades joined together in pairs at the level of their platforms

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2206156A FR3137125B1 (en) 2022-06-22 2022-06-22 Bladed turbomachine assembly comprising blades joined together in pairs at the level of their platforms
FR2206156 2022-06-22

Publications (2)

Publication Number Publication Date
FR3137125A1 FR3137125A1 (en) 2023-12-29
FR3137125B1 true FR3137125B1 (en) 2024-05-31

Family

ID=83505712

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2206156A Active FR3137125B1 (en) 2022-06-22 2022-06-22 Bladed turbomachine assembly comprising blades joined together in pairs at the level of their platforms

Country Status (1)

Country Link
FR (1) FR3137125B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1403799A (en) * 1964-05-13 1965-06-25 Rateau Soc Turbine wheel subjected to partial injection
FR1552101A (en) * 1967-11-17 1969-01-03
JPS5330844B2 (en) * 1975-01-24 1978-08-30
FR2955608B1 (en) * 2010-01-26 2013-01-11 Snecma LAMINATED VIBRATION SHOCK ABSORBER AND SHOES BETWEEN ADJACENT BLADE HEADS IN COMPOSITE MATERIAL OF A TURBOMACHINE MOBILE WHEEL.
FR2960021B1 (en) * 2010-05-12 2014-04-25 Snecma TURBOMACHINE MOBILE WHEEL HAVING A VIBRATION DAMPING ROUND

Also Published As

Publication number Publication date
FR3137125A1 (en) 2023-12-29

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