EP1154125A3 - Blading with damping elements - Google Patents

Blading with damping elements Download PDF

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Publication number
EP1154125A3
EP1154125A3 EP01109099A EP01109099A EP1154125A3 EP 1154125 A3 EP1154125 A3 EP 1154125A3 EP 01109099 A EP01109099 A EP 01109099A EP 01109099 A EP01109099 A EP 01109099A EP 1154125 A3 EP1154125 A3 EP 1154125A3
Authority
EP
European Patent Office
Prior art keywords
rotor
blades
damping elements
damping
blade arrangement
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.)
Granted
Application number
EP01109099A
Other languages
German (de)
French (fr)
Other versions
EP1154125A2 (en
EP1154125B1 (en
Inventor
Herbert Brandl
Rudolf Dr. Kellerer
Brammajyosula Dr. Ravindra
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
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Filing date
Publication date
Application filed by Alstom Schweiz AG filed Critical Alstom Schweiz AG
Publication of EP1154125A2 publication Critical patent/EP1154125A2/en
Publication of EP1154125A3 publication Critical patent/EP1154125A3/en
Application granted granted Critical
Publication of EP1154125B1 publication Critical patent/EP1154125B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • 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)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Die vorliegende Erfindung betrifft eine Schaufelanordnung mit Dämpfungselementen sowie ein Verfahren zur Vibrationsdämpfung einer Schaufelanordnung. Die Schaufelanordnung umfasst einen Rotor sowie am Umfang des Rotors angeordnete Schaufeln. Zwischen den Schaufeln sind Dämpfungselemente (2, 3) angeordnet, die bei einer Rotation des Rotors durch eine in radialer Richtung wirkende Zentrifugalkraft mit den Schaufeln in Kontakt stehen. Zwischen benachbarten Schaufeln sind hierbei zumindest zwei Dämpfungselemente (2, 3) in Umfangsrichtung des Rotors hintereinander angeordnet, die sich bei einer Rotation des Rotors über eine Berührungsfläche (6) berühren und von denen ein erstes Dämpfungselement (2) mit einer ersten Reibungsfläche (4) der einen und ein zweites Dämpfungselement (3) mit einer zweiten Reibungsfläche (5) der anderen Schaufel in Kontakt treten.The present invention relates to a blade arrangement with damping elements and a method for vibration damping of a blade arrangement. The Blade arrangement includes a rotor and on the circumference blades arranged on the rotor. Between the blades are damping elements (2, 3) arranged at a rotation of the rotor by one in the radial direction acting centrifugal force with the blades in Are in contact. Are between adjacent blades at least two damping elements (2, 3) in the circumferential direction of the rotor arranged one behind the other when the rotor rotates over a contact surface (6) touch and of which a first damping element (2) with a first friction surface (4) one and a second damping element (3) with a second friction surface (5) of the other blade in Get in touch.

Mit der Schaufelanordnung lassen sich eine Vielzahl von unterschiedlichen Schwingungszuständen wirksam dämpfen.

Figure 00000001
A multitude of different vibration states can be effectively damped with the blade arrangement.
Figure 00000001
EP01109099A 2000-05-08 2001-04-12 Blading with damping elements Expired - Lifetime EP1154125B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10022244 2000-05-08
DE10022244A DE10022244A1 (en) 2000-05-08 2000-05-08 Blade arrangement with damping elements

Publications (3)

Publication Number Publication Date
EP1154125A2 EP1154125A2 (en) 2001-11-14
EP1154125A3 true EP1154125A3 (en) 2003-10-29
EP1154125B1 EP1154125B1 (en) 2006-03-15

Family

ID=7641102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01109099A Expired - Lifetime EP1154125B1 (en) 2000-05-08 2001-04-12 Blading with damping elements

Country Status (3)

Country Link
US (1) US6478544B2 (en)
EP (1) EP1154125B1 (en)
DE (2) DE10022244A1 (en)

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US7270517B2 (en) * 2005-10-06 2007-09-18 Siemens Power Generation, Inc. Turbine blade with vibration damper
EP1818506A1 (en) 2006-02-08 2007-08-15 Siemens Aktiengesellschaft HCF stress reduction in fir-trees
US7534090B2 (en) * 2006-06-13 2009-05-19 General Electric Company Enhanced bucket vibration system
DE102006041322A1 (en) * 2006-09-01 2008-04-24 Rolls-Royce Deutschland Ltd & Co Kg Damping and sealing system for turbine blades
US7762773B2 (en) * 2006-09-22 2010-07-27 Siemens Energy, Inc. Turbine airfoil cooling system with platform edge cooling channels
EP1925781A1 (en) * 2006-11-23 2008-05-28 Siemens Aktiengesellschaft Blade arrangement
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
US9121293B2 (en) * 2009-03-09 2015-09-01 Avio S.P.A. Rotor for turbomachines
EP2434098A1 (en) 2010-09-24 2012-03-28 Siemens Aktiengesellschaft Blade assembly and corresponding gas turbine
JP5675282B2 (en) * 2010-11-09 2015-02-25 三菱重工業株式会社 Rotor body and rotating machine
US8577504B1 (en) * 2010-11-24 2013-11-05 United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration System for suppressing vibration in turbomachine components
US9366142B2 (en) 2011-10-28 2016-06-14 General Electric Company Thermal plug for turbine bucket shank cavity and related method
US9140132B2 (en) 2012-05-31 2015-09-22 Solar Turbines Incorporated Turbine blade support
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
WO2015085078A1 (en) * 2013-12-05 2015-06-11 United Technologies Corporation Hollow blade having internal damper
DE102013226015A1 (en) * 2013-12-16 2015-07-16 MTU Aero Engines AG blade cascade
US9624780B2 (en) * 2013-12-17 2017-04-18 General Electric Company System and method for securing axially inserted buckets to a rotor assembly
US9797270B2 (en) * 2013-12-23 2017-10-24 Rolls-Royce North American Technologies Inc. Recessable damper for turbine
JP6366310B2 (en) * 2014-03-18 2018-08-01 三菱日立パワーシステムズ株式会社 Seal structure, blade, and rotating machine
EP2942481B1 (en) 2014-05-07 2019-03-27 Rolls-Royce Corporation Rotor for a gas turbine engine
JP5863894B2 (en) * 2014-07-09 2016-02-17 三菱日立パワーシステムズ株式会社 Rotor body and rotating machine
ES2745381T3 (en) * 2014-11-24 2020-03-02 MTU Aero Engines AG Blade for a turbomachine and axial turbomachine
EP3043085A1 (en) 2015-01-08 2016-07-13 Siemens Aktiengesellschaft Blade assembly for an axial flow thermal turbomachine and method for mounting a damper element between two blades of a bladed ring of a thermal turbomachine
EP3078808A1 (en) 2015-04-07 2016-10-12 Siemens Aktiengesellschaft Rotor blade row for a flow engine
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
US10472975B2 (en) * 2015-09-03 2019-11-12 General Electric Company Damper pin having elongated bodies for damping adjacent turbine blades
US10443408B2 (en) 2015-09-03 2019-10-15 General Electric Company Damper pin for a turbine blade
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
JP7039355B2 (en) * 2018-03-28 2022-03-22 三菱重工業株式会社 Rotating machine
JP7267427B2 (en) * 2018-12-20 2023-05-01 シーメンス エナジー グローバル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト Blade rotor system and corresponding maintenance inspection method
CN110925030B (en) * 2019-12-05 2022-03-08 中国航发四川燃气涡轮研究院 Low-pressure turbine simulation blade with embedded blade shroud damping
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
CN114382549B (en) * 2020-10-21 2024-04-23 中国航发商用航空发动机有限责任公司 Turbine and aeroengine
US11391157B1 (en) 2021-03-23 2022-07-19 Pratt & Whitney Canada Corp. Damped rotor assembly
US11525464B2 (en) 2021-03-23 2022-12-13 Pratt & Whitney Canada Corp. Rotor with centrifugally wedged damper
JP2023093088A (en) * 2021-12-22 2023-07-04 三菱重工業株式会社 rotary machine

Citations (7)

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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
GB2112466A (en) * 1981-12-30 1983-07-20 Rolls Royce Rotor blade vibration damping
SU1127979A1 (en) * 1983-02-23 1984-12-07 Предприятие П/Я Р-6837 Turbine rotor
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
US5700133A (en) * 1995-09-21 1997-12-23 Societe Nationale D'etude Et De Construction De Moteurs D'aviation Snecma Damper disposition mounted between rotor vanes
EP0918139A2 (en) * 1997-11-25 1999-05-26 ROLLS-ROYCE plc Friction Damper

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US4767247A (en) * 1987-02-24 1988-08-30 Westinghouse Electric Corp. Apparatus and method for preventing relative blade motion in steam turbine
GB2223277B (en) 1988-09-30 1992-08-12 Rolls Royce Plc Aerofoil blade damping
US5156528A (en) 1991-04-19 1992-10-20 General Electric Company Vibration damping of gas turbine engine buckets
US5205713A (en) * 1991-04-29 1993-04-27 General Electric Company Fan blade damper
US5261790A (en) * 1992-02-03 1993-11-16 General Electric Company Retention device for turbine blade damper

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
GB2112466A (en) * 1981-12-30 1983-07-20 Rolls Royce Rotor blade vibration damping
SU1127979A1 (en) * 1983-02-23 1984-12-07 Предприятие П/Я Р-6837 Turbine rotor
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
US5700133A (en) * 1995-09-21 1997-12-23 Societe Nationale D'etude Et De Construction De Moteurs D'aviation Snecma Damper disposition mounted between rotor vanes
EP0918139A2 (en) * 1997-11-25 1999-05-26 ROLLS-ROYCE plc Friction Damper

Also Published As

Publication number Publication date
DE10022244A1 (en) 2001-11-15
US6478544B2 (en) 2002-11-12
EP1154125A2 (en) 2001-11-14
US20010038793A1 (en) 2001-11-08
EP1154125B1 (en) 2006-03-15
DE50109189D1 (en) 2006-05-11

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