FR3106622B1 - DAMPING SYSTEM FOR A GUIDE BEARING OF A SHAFT OF AN AIRCRAFT TURBOMACHINE - Google Patents

DAMPING SYSTEM FOR A GUIDE BEARING OF A SHAFT OF AN AIRCRAFT TURBOMACHINE Download PDF

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Publication number
FR3106622B1
FR3106622B1 FR2000819A FR2000819A FR3106622B1 FR 3106622 B1 FR3106622 B1 FR 3106622B1 FR 2000819 A FR2000819 A FR 2000819A FR 2000819 A FR2000819 A FR 2000819A FR 3106622 B1 FR3106622 B1 FR 3106622B1
Authority
FR
France
Prior art keywords
guide bearing
damping
shaft
damping system
ring
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
FR2000819A
Other languages
French (fr)
Other versions
FR3106622A1 (en
Inventor
Benjamin Maurice Wilfrid Petard
Sébastien Bourget
Matthieu Etienne Attali
Frédéric Montin
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 FR2000819A priority Critical patent/FR3106622B1/en
Publication of FR3106622A1 publication Critical patent/FR3106622A1/en
Application granted granted Critical
Publication of FR3106622B1 publication Critical patent/FR3106622B1/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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/162—Bearing supports
    • F01D25/164—Flexible supports; Vibration damping means associated with the bearing
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
    • F16C27/045—Ball or roller bearings, e.g. with resilient rolling bodies with a fluid film, e.g. squeeze film damping
    • 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
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
    • F16F15/0237—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means involving squeeze-film damping
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
    • F16C19/26—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/23—Gas turbine engines

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Support Of The Bearing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L’invention concerne un système d’amortissement (80) d’un palier de guidage d’un arbre (86) de soufflante d’une turbomachine d’aéronef comprenant une cage d’amortissement (88) agencée entre un carter (82) et un palier (84) de guidage, et comprenant : un premier étage (96) relié à une première extrémité (100) à une bague externe (90) dudit palier et à une deuxième extrémité (102) à une bague intermédiaire (104), et comprenant une première cavité d’amortissement (110) délimitée radialement entre ladite bague intermédiaire et ladite bague externe et configurée pour recevoir un fluide d’amortissement, et un deuxième étage (98) relié à une première extrémité (106) à ladite bague intermédiaire et à une deuxième extrémité (108) audit carter, et comprenant une deuxième cavité d’amortissement (112) délimitée radialement entre ladite bague intermédiaire et ledit carter et configurée pour recevoir un fluide d’amortissement. Figure pour l'abrégé : Figure 4The invention relates to a damping system (80) for a guide bearing of a fan shaft (86) of an aircraft turbine engine comprising a damping cage (88) arranged between a casing (82) and a guide bearing (84), and comprising: a first stage (96) connected at a first end (100) to an outer ring (90) of said bearing and at a second end (102) to an intermediate ring (104) , and comprising a first damping cavity (110) defined radially between said intermediate ring and said outer ring and configured to receive a damping fluid, and a second stage (98) connected at a first end (106) to said ring intermediate and at a second end (108) to said casing, and comprising a second damping cavity (112) defined radially between said intermediate ring and said casing and configured to receive a damping fluid. Figure for abstract: Figure 4

FR2000819A 2020-01-28 2020-01-28 DAMPING SYSTEM FOR A GUIDE BEARING OF A SHAFT OF AN AIRCRAFT TURBOMACHINE Active FR3106622B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2000819A FR3106622B1 (en) 2020-01-28 2020-01-28 DAMPING SYSTEM FOR A GUIDE BEARING OF A SHAFT OF AN AIRCRAFT TURBOMACHINE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2000819 2020-01-28
FR2000819A FR3106622B1 (en) 2020-01-28 2020-01-28 DAMPING SYSTEM FOR A GUIDE BEARING OF A SHAFT OF AN AIRCRAFT TURBOMACHINE

Publications (2)

Publication Number Publication Date
FR3106622A1 FR3106622A1 (en) 2021-07-30
FR3106622B1 true FR3106622B1 (en) 2022-05-13

Family

ID=70295365

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2000819A Active FR3106622B1 (en) 2020-01-28 2020-01-28 DAMPING SYSTEM FOR A GUIDE BEARING OF A SHAFT OF AN AIRCRAFT TURBOMACHINE

Country Status (1)

Country Link
FR (1) FR3106622B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440456A (en) * 1983-03-24 1984-04-03 General Motors Corporation Squeeze film bearing mount
US4872767A (en) * 1985-04-03 1989-10-10 General Electric Company Bearing support
US8834095B2 (en) * 2011-06-24 2014-09-16 United Technologies Corporation Integral bearing support and centering spring assembly for a gas turbine engine
FR2979681B1 (en) 2011-09-05 2014-05-16 Snecma TURBOMACHINE COMPRISING A FLUID FILM FOR DAMPING A TURBOMACHINE SHAFT GUIDE BEARING AND METHOD FOR ADJUSTING THE THICKNESS OF SUCH A DAMPING FLUID FILM

Also Published As

Publication number Publication date
FR3106622A1 (en) 2021-07-30

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