DE3109519C2 - "Schwingungsgedämpfte Schaufel für Turbomaschinen" - Google Patents

"Schwingungsgedämpfte Schaufel für Turbomaschinen"

Info

Publication number
DE3109519C2
DE3109519C2 DE19813109519 DE3109519A DE3109519C2 DE 3109519 C2 DE3109519 C2 DE 3109519C2 DE 19813109519 DE19813109519 DE 19813109519 DE 3109519 A DE3109519 A DE 3109519A DE 3109519 C2 DE3109519 C2 DE 3109519C2
Authority
DE
Germany
Prior art keywords
bore
damping elements
vibration
blade
group
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.)
Expired
Application number
DE19813109519
Other languages
German (de)
English (en)
Other versions
DE3109519A1 (de
Inventor
Derek Aubrey Clifton Bristol Roberts
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 DE3109519A1 publication Critical patent/DE3109519A1/de
Application granted granted Critical
Publication of DE3109519C2 publication Critical patent/DE3109519C2/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
    • 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
    • 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
    • F16F15/04—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 elastic means
    • F16F15/06—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 elastic means with metal springs
    • F16F15/067—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 elastic means with metal springs using only wound springs
    • 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
    • F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
    • F16F3/04—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of wound springs
    • F16F3/06—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of wound springs of which some are placed around others in such a way that they damp each other by mutual friction
    • 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
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/02—Vibration-dampers; Shock-absorbers with relatively-rotatable friction surfaces that are pressed together

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
DE19813109519 1980-03-14 1981-03-12 "Schwingungsgedämpfte Schaufel für Turbomaschinen" Expired DE3109519C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8008781A GB2071775B (en) 1980-03-14 1980-03-14 Turbomachine blade vibration damping

Publications (2)

Publication Number Publication Date
DE3109519A1 DE3109519A1 (de) 1981-12-24
DE3109519C2 true DE3109519C2 (de) 1983-02-24

Family

ID=10512118

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813109519 Expired DE3109519C2 (de) 1980-03-14 1981-03-12 "Schwingungsgedämpfte Schaufel für Turbomaschinen"

Country Status (4)

Country Link
JP (1) JPS56167801A (enrdf_load_stackoverflow)
DE (1) DE3109519C2 (enrdf_load_stackoverflow)
FR (1) FR2478196B1 (enrdf_load_stackoverflow)
GB (1) GB2071775B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4311912A1 (en) * 2022-07-27 2024-01-31 General Electric Technology GmbH Vibration damping system for turbine nozzle or blade using stacked plate members

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5056738A (en) * 1989-09-07 1991-10-15 General Electric Company Damper assembly for a strut in a jet propulsion engine
FR2667668B1 (fr) * 1990-10-09 1993-01-22 Framatome Sa Manchon d'amortissement du deplacement de deux organes l'un par rapport a l'autre et dispositif de supportage de la tuyauterie de sortie de vapeur d'un generateur de vapeur comportant au moins un tel manchon.
GB2293695B (en) * 1994-09-30 1998-05-13 Aisin Seiki Switched reluctance motor
GB0615144D0 (en) 2006-07-29 2006-09-06 Rolls Royce Plc Turbomachine blade
JP5579112B2 (ja) * 2011-03-28 2014-08-27 三菱重工業株式会社 タービン動翼の固定構造及び翼根バネの脱着方法
US9194238B2 (en) * 2012-11-28 2015-11-24 General Electric Company System for damping vibrations in a turbine
US10724376B2 (en) 2018-02-08 2020-07-28 General Electric Company Airfoil having integral fins
CN110865304B (zh) * 2019-11-27 2021-08-24 长沙理工大学 一种附加盘式减振结构的汽轮发电机组轴系扭振减振方法
US12276205B2 (en) * 2023-06-29 2025-04-15 Ge Infrastructure Technology Llc Damper element with flexible legs for vibration dampening system for turbine blade
US12006831B1 (en) * 2023-06-29 2024-06-11 Ge Infrastructure Technology Llc Damper element with spring-suspended bearing member for vibration dampening system for turbine blade

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE553716C (de) * 1930-08-22 1932-06-29 Aeg Einrichtung zur Schwingungsdaempfung stabfoermiger Koerper, insbesondere Turbinenschaufeln
FR981599A (fr) * 1948-12-31 1951-05-28 Dispositif amortisseur de vibrations
US2999669A (en) * 1958-11-21 1961-09-12 Westinghouse Electric Corp Damping apparatus
GB936508A (en) * 1961-03-13 1963-09-11 Rolls Royce Improvements relating to vane or blade members for compressors or turbines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4311912A1 (en) * 2022-07-27 2024-01-31 General Electric Technology GmbH Vibration damping system for turbine nozzle or blade using stacked plate members
US12071862B2 (en) 2022-07-27 2024-08-27 Ge Infrastructure Technology Llc Vibration damping system for turbine nozzle or blade using stacked plate members

Also Published As

Publication number Publication date
DE3109519A1 (de) 1981-12-24
JPS6148605B2 (enrdf_load_stackoverflow) 1986-10-24
FR2478196B1 (fr) 1986-02-21
GB2071775B (en) 1983-07-27
FR2478196A1 (fr) 1981-09-18
GB2071775A (en) 1981-09-23
JPS56167801A (en) 1981-12-23

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ROLLS-ROYCE PLC, LONDON, GB

8339 Ceased/non-payment of the annual fee