EP0918139A3 - Friction Damper - Google Patents

Friction Damper Download PDF

Info

Publication number
EP0918139A3
EP0918139A3 EP98309280A EP98309280A EP0918139A3 EP 0918139 A3 EP0918139 A3 EP 0918139A3 EP 98309280 A EP98309280 A EP 98309280A EP 98309280 A EP98309280 A EP 98309280A EP 0918139 A3 EP0918139 A3 EP 0918139A3
Authority
EP
European Patent Office
Prior art keywords
friction
blade
friction surface
gas turbine
damper
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.)
Withdrawn
Application number
EP98309280A
Other languages
German (de)
French (fr)
Other versions
EP0918139A2 (en
Inventor
Kenan Yuce Sanliturk
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Publication of EP0918139A2 publication Critical patent/EP0918139A2/en
Publication of EP0918139A3 publication Critical patent/EP0918139A3/en
Withdrawn legal-status Critical Current

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
    • F01D5/26—Antivibration means not restricted to blade form or construction or to blade-to-blade connections or to the use of particular materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

A blade to blade vibration damper 30,34 for a gas turbine engine includes a first friction surface 28 for contacting a first face 22 associated with a blade of the gas turbine and a second friction surface 28 for contacting a second face 22 associated with an adjacent blade of the gas turbine. The damper is formed in at least two parts such that the first friction surface can move relative to the second friction surface. Relative radial movement of the two friction surfaces can take place thereby allowing the friction damper to respond to relative radial movement of adjacent turbine blades, while maintaining the first and second friction surfaces in contact with the first and second faces respectively.
EP98309280A 1997-11-25 1998-11-12 Friction Damper Withdrawn EP0918139A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9724731.6A GB9724731D0 (en) 1997-11-25 1997-11-25 Friction damper
GB9724731 1997-11-25

Publications (2)

Publication Number Publication Date
EP0918139A2 EP0918139A2 (en) 1999-05-26
EP0918139A3 true EP0918139A3 (en) 2000-07-26

Family

ID=10822505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98309280A Withdrawn EP0918139A3 (en) 1997-11-25 1998-11-12 Friction Damper

Country Status (2)

Country Link
EP (1) EP0918139A3 (en)
GB (1) GB9724731D0 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10022244A1 (en) * 2000-05-08 2001-11-15 Alstom Power Nv Blade arrangement with damping elements
GB0109033D0 (en) * 2001-04-10 2001-05-30 Rolls Royce Plc Vibration damping
GB0304329D0 (en) * 2003-02-26 2003-04-02 Rolls Royce Plc Damper seal
US6776583B1 (en) * 2003-02-27 2004-08-17 General Electric Company Turbine bucket damper pin
EP1818506A1 (en) 2006-02-08 2007-08-15 Siemens Aktiengesellschaft HCF stress reduction in fir-trees
EP1925781A1 (en) 2006-11-23 2008-05-28 Siemens Aktiengesellschaft Blade arrangement
EP3438410B1 (en) 2017-08-01 2021-09-29 General Electric Company Sealing system for a rotary machine
CN113803115B (en) * 2020-06-16 2024-04-05 中国航发商用航空发动机有限责任公司 Turbine blade edge plate damper, turbine blade and aeroengine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2942843A (en) * 1956-06-15 1960-06-28 Westinghouse Electric Corp Blade vibration damping structure
FR1263677A (en) * 1960-07-29 1961-06-09 Havilland Engine Co Ltd Anti-vibration device applicable to rotating parts
US3181835A (en) * 1964-01-07 1965-05-04 Carroll C Davis Blade vibration damping device
US4480957A (en) * 1983-04-14 1984-11-06 General Electric Company Dynamic response modification and stress reduction in dovetail and blade assembly
US5143517A (en) * 1990-08-08 1992-09-01 Societe Nationale D'etude Et De Construction De Moteurs D'aviation"S.N.E.M.C.A." Turbofan with dynamic vibration damping
EP0509838A1 (en) * 1991-04-19 1992-10-21 General Electric Company Vibration damping of gas turbine engine buckets
EP0764766A1 (en) * 1995-09-21 1997-03-26 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Device for suppressing vibrations mounted between rotor blades

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478207A (en) 1994-09-19 1995-12-26 General Electric Company Stable blade vibration damper for gas turbine engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2942843A (en) * 1956-06-15 1960-06-28 Westinghouse Electric Corp Blade vibration damping structure
FR1263677A (en) * 1960-07-29 1961-06-09 Havilland Engine Co Ltd Anti-vibration device applicable to rotating parts
US3181835A (en) * 1964-01-07 1965-05-04 Carroll C Davis Blade vibration damping device
US4480957A (en) * 1983-04-14 1984-11-06 General Electric Company Dynamic response modification and stress reduction in dovetail and blade assembly
US5143517A (en) * 1990-08-08 1992-09-01 Societe Nationale D'etude Et De Construction De Moteurs D'aviation"S.N.E.M.C.A." Turbofan with dynamic vibration damping
EP0509838A1 (en) * 1991-04-19 1992-10-21 General Electric Company Vibration damping of gas turbine engine buckets
EP0764766A1 (en) * 1995-09-21 1997-03-26 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Device for suppressing vibrations mounted between rotor blades

Also Published As

Publication number Publication date
EP0918139A2 (en) 1999-05-26
GB9724731D0 (en) 1998-01-21

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