EP1136653A3 - Blading with damping elements - Google Patents

Blading with damping elements Download PDF

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Publication number
EP1136653A3
EP1136653A3 EP01105747A EP01105747A EP1136653A3 EP 1136653 A3 EP1136653 A3 EP 1136653A3 EP 01105747 A EP01105747 A EP 01105747A EP 01105747 A EP01105747 A EP 01105747A EP 1136653 A3 EP1136653 A3 EP 1136653A3
Authority
EP
European Patent Office
Prior art keywords
blading
area
rotor
blades
bucket
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Withdrawn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
EP01105747A
Other languages
German (de)
French (fr)
Other versions
EP1136653A2 (en
Inventor
Jaroslaw Dr. Szwedowicz
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.)
General Electric Technology GmbH
Original Assignee
Alstom Schweiz AG
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 Alstom Schweiz AG filed Critical Alstom Schweiz AG
Publication of EP1136653A2 publication Critical patent/EP1136653A2/en
Publication of EP1136653A3 publication Critical patent/EP1136653A3/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Withdrawn legal-status Critical Current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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/04—Antivibration arrangements
    • F01D25/06—Antivibration arrangements for preventing 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
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • 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
    • F05D2250/00—Geometry
    • F05D2250/70—Shape
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/50—Vibration damping features

Landscapes

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

Abstract

Die vorliegende Erfindung betrifft eine Beschaufelung mit Dämpfungselementen, die einen Rotor (5) sowie am Umfang des Rotors eingefügte Schaufeln (6) mit Schaufelplattform (7), Schaufelhals (14) und Schaufelfuß (8) umfasst. Zwischen jeweils benachbarten Schaufeln (6) ist ein Dämpfungselement (9) angeordnet, das bei einer Rotation des Rotors (5) über Reibschluss mit zumindest einem ersten Bereich (1, 2) einer ersten und einem zweiten Bereich (3) einer zweiten der jeweils benachbarten Schaufeln (6) in Verbindung steht. Die Beschaufelung zeichnet sich dadurch aus, dass das Dämpfungselement (9) so ausgestaltet und zwischen der ersten und der zweiten Schaufel angeordnet ist, dass der erste Bereich (1, 2) und der zweite Bereich (3) an in radialer Richtung deutlich voneinander beabstandeten Positionen liegen.The present invention relates to blading with damping elements, a rotor (5) as well blades (6) inserted on the circumference of the rotor Bucket platform (7), bucket neck (14) and bucket foot (8) includes. Between adjacent blades (6) a damping element (9) is arranged, the with a rotation of the rotor (5) via friction at least a first area (1, 2) of a first and a second area (3) of a second one of the neighboring areas Blades (6) is connected. The blading is characterized in that the damping element (9) designed and between the first and the second blade is arranged so that the first area (1, 2) and the second area (3) on in radial direction clearly spaced apart Positions.

Mit dieser Beschaufelung wird eine effiziente Schwingungsdämpfung auch bei geringen Relativbewegungen zwischen benachbarten Schaufeln erreicht.

Figure 00000001
With this blading, efficient vibration damping is achieved even with small relative movements between adjacent blades.
Figure 00000001
EP01105747A 2000-03-22 2001-03-08 Blading with damping elements Withdrawn EP1136653A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10014198A DE10014198A1 (en) 2000-03-22 2000-03-22 Blade arrangement for gas turbines etc. has damper elements located between neighboring rotor blades to engage on opposite distant blade surfaces
DE10014198 2000-03-22

Publications (2)

Publication Number Publication Date
EP1136653A2 EP1136653A2 (en) 2001-09-26
EP1136653A3 true EP1136653A3 (en) 2003-10-15

Family

ID=7635892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01105747A Withdrawn EP1136653A3 (en) 2000-03-22 2001-03-08 Blading with damping elements

Country Status (3)

Country Link
US (1) US6450769B2 (en)
EP (1) EP1136653A3 (en)
DE (1) DE10014198A1 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2372875A1 (en) * 1999-05-14 2000-11-23 Siemens Aktiengesellschaft Turbomachine with a sealing system for a rotor
US6851932B2 (en) * 2003-05-13 2005-02-08 General Electric Company Vibration damper assembly for the buckets of a turbine
US7367123B2 (en) * 2005-05-12 2008-05-06 General Electric Company Coated bucket damper pin and related method
US7270517B2 (en) * 2005-10-06 2007-09-18 Siemens Power Generation, Inc. Turbine blade with vibration damper
DE102006041322A1 (en) * 2006-09-01 2008-04-24 Rolls-Royce Deutschland Ltd & Co Kg Damping and sealing system for turbine blades
GB0814018D0 (en) 2008-08-01 2008-09-10 Rolls Royce Plc Vibration damper
US8137072B2 (en) * 2008-10-31 2012-03-20 Solar Turbines Inc. Turbine blade including a seal pocket
US8393869B2 (en) 2008-12-19 2013-03-12 Solar Turbines Inc. Turbine blade assembly including a damper
US8834123B2 (en) * 2009-12-29 2014-09-16 Rolls-Royce Corporation Turbomachinery component
FR2962481B1 (en) * 2010-07-12 2012-08-31 Snecma Propulsion Solide VIBRATION DAMPER WITH LEVER ARM FOR A ROTOR OF A GAS TURBINE ENGINE
US8876478B2 (en) 2010-11-17 2014-11-04 General Electric Company Turbine blade combined damper and sealing pin and related method
US8915718B2 (en) * 2012-04-24 2014-12-23 United Technologies Corporation Airfoil including damper member
US9140132B2 (en) 2012-05-31 2015-09-22 Solar Turbines Incorporated Turbine blade support
DE102012106789B4 (en) * 2012-07-26 2022-10-27 Ihi Charging Systems International Gmbh Adjustable diffuser for a turbine, turbine for an exhaust gas turbocharger and exhaust gas turbocharger
US9309782B2 (en) 2012-09-14 2016-04-12 General Electric Company Flat bottom damper pin for turbine blades
US9353629B2 (en) 2012-11-30 2016-05-31 Solar Turbines Incorporated Turbine blade apparatus
US10443408B2 (en) 2015-09-03 2019-10-15 General Electric Company Damper pin for a turbine blade
US10472975B2 (en) 2015-09-03 2019-11-12 General Electric Company Damper pin having elongated bodies for damping adjacent turbine blades
US10584597B2 (en) 2015-09-03 2020-03-10 General Electric Company Variable cross-section damper pin for a turbine blade
US10385701B2 (en) 2015-09-03 2019-08-20 General Electric Company Damper pin for a turbine blade
DE102016205997A1 (en) * 2016-04-11 2017-10-12 MTU Aero Engines AG vane segment
US10662784B2 (en) 2016-11-28 2020-05-26 Raytheon Technologies Corporation Damper with varying thickness for a blade
US10677073B2 (en) 2017-01-03 2020-06-09 Raytheon Technologies Corporation Blade platform with damper restraint
US10731479B2 (en) * 2017-01-03 2020-08-04 Raytheon Technologies Corporation Blade platform with damper restraint
EP3438410B1 (en) 2017-08-01 2021-09-29 General Electric Company Sealing system for a rotary machine
GB2573520A (en) * 2018-05-08 2019-11-13 Rolls Royce Plc A damper
DE102018221533A1 (en) 2018-12-12 2020-06-18 MTU Aero Engines AG Turbomachinery blade arrangement
FR3096734B1 (en) * 2019-05-29 2021-12-31 Safran Aircraft Engines Turbomachine kit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666376A (en) * 1971-01-05 1972-05-30 United Aircraft Corp Turbine blade damper
US4182598A (en) * 1977-08-29 1980-01-08 United Technologies Corporation Turbine blade damper
SU1127979A1 (en) * 1983-02-23 1984-12-07 Предприятие П/Я Р-6837 Turbine rotor
EP0509838A1 (en) * 1991-04-19 1992-10-21 General Electric Company Vibration damping of gas turbine engine buckets

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4872812A (en) * 1987-08-05 1989-10-10 General Electric Company Turbine blade plateform sealing and vibration damping apparatus
US4872810A (en) * 1988-12-14 1989-10-10 United Technologies Corporation Turbine rotor retention system
US4936749A (en) * 1988-12-21 1990-06-26 General Electric Company Blade-to-blade vibration damper
US5478207A (en) * 1994-09-19 1995-12-26 General Electric Company Stable blade vibration damper for gas turbine engine
US6042336A (en) * 1998-11-25 2000-03-28 United Technologies Corporation Offset center of gravity radial damper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666376A (en) * 1971-01-05 1972-05-30 United Aircraft Corp Turbine blade damper
US4182598A (en) * 1977-08-29 1980-01-08 United Technologies Corporation Turbine blade damper
SU1127979A1 (en) * 1983-02-23 1984-12-07 Предприятие П/Я Р-6837 Turbine rotor
EP0509838A1 (en) * 1991-04-19 1992-10-21 General Electric Company Vibration damping of gas turbine engine buckets

Also Published As

Publication number Publication date
DE10014198A1 (en) 2001-09-27
EP1136653A2 (en) 2001-09-26
US20010024614A1 (en) 2001-09-27
US6450769B2 (en) 2002-09-17

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