JP4974200B2 - ロータの振動減衰のための装置と方法 - Google Patents

ロータの振動減衰のための装置と方法 Download PDF

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Publication number
JP4974200B2
JP4974200B2 JP2000235061A JP2000235061A JP4974200B2 JP 4974200 B2 JP4974200 B2 JP 4974200B2 JP 2000235061 A JP2000235061 A JP 2000235061A JP 2000235061 A JP2000235061 A JP 2000235061A JP 4974200 B2 JP4974200 B2 JP 4974200B2
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JP
Japan
Prior art keywords
damper ring
rotor
ring
damper
assembly
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Expired - Fee Related
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JP2000235061A
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English (en)
Japanese (ja)
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JP2001082544A5 (enExample
JP2001082544A (ja
Inventor
アニルッダー・ダッタトラヤ・ガドレ
ブハラト・サンパスクマー・バゲパリー
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General Electric Co
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General Electric Co
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Publication of JP2001082544A5 publication Critical patent/JP2001082544A5/ja
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Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • F01D5/24—Blade-to-blade connections, e.g. for damping vibrations using wire or the like
    • 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
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • 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
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/1213—Spiral springs, e.g. lying in one plane, around axis of rotation
    • 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
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/124—Elastomeric springs
    • F16F15/126—Elastomeric springs consisting of at least one annular element surrounding the axis of rotation
    • 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

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  • 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)
JP2000235061A 1999-08-05 2000-08-03 ロータの振動減衰のための装置と方法 Expired - Fee Related JP4974200B2 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US14724999P 1999-08-05 1999-08-05
US60/147249 1999-08-05
US09/528533 2000-03-20
US09/528,533 US6494679B1 (en) 1999-08-05 2000-03-20 Apparatus and method for rotor damping

Publications (3)

Publication Number Publication Date
JP2001082544A JP2001082544A (ja) 2001-03-27
JP2001082544A5 JP2001082544A5 (enExample) 2007-09-20
JP4974200B2 true JP4974200B2 (ja) 2012-07-11

Family

ID=26844743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000235061A Expired - Fee Related JP4974200B2 (ja) 1999-08-05 2000-08-03 ロータの振動減衰のための装置と方法

Country Status (4)

Country Link
US (1) US6494679B1 (enExample)
EP (2) EP1965093B1 (enExample)
JP (1) JP4974200B2 (enExample)
DE (1) DE60039389D1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10364703B2 (en) 2013-11-14 2019-07-30 Safran Aircraft Engines Annular element of a turbomachine casing

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2888876B1 (fr) * 2005-07-21 2011-04-01 Snecma Dispositif d'amortissement des vibrations d'un rotor dans une turbomachine
JP4793257B2 (ja) * 2006-12-26 2011-10-12 トヨタ自動車株式会社 振動抑制構造
JP2008157427A (ja) * 2006-12-26 2008-07-10 Toyota Motor Corp 振動抑制構造
FR2912482B1 (fr) * 2007-02-11 2009-05-08 Le Confort Acoustique Sarl Sar Dispositif d'amortissement de vibrations.
FR2918107B1 (fr) * 2007-06-26 2013-04-12 Snecma Dispositif amortisseur adapte aux arbres de turbomachine.
FR2918108B1 (fr) 2007-06-26 2009-10-02 Snecma Sa Dispositif amortisseur pour stator de turbomachine
FR2918109B1 (fr) * 2007-06-26 2013-05-24 Snecma Roue mobile pour un turboreacteur et turboreacteur la comportant
FR2921100B1 (fr) * 2007-09-13 2009-12-04 Snecma Levier d'entrainement en rotation autour de son pivot d'aube de stator a calage variable de turbomachine
FR2923557B1 (fr) * 2007-11-12 2010-01-22 Snecma Ensemble d'une aube de soufflante et de son amortisseur, amortisseur d'aube de soufflante et methode de calibrage de l'amortisseur
US8197189B2 (en) * 2007-11-27 2012-06-12 Pratt & Whitney Canada Corp. Vibration damping of a static part using a retaining ring
FR2926602B1 (fr) * 2008-01-23 2010-03-26 Snecma Dispositif d'amortissement des vibrations d'un rotor de turbomachine
DE102009010185A1 (de) * 2009-02-23 2010-08-26 Mtu Aero Engines Gmbh Gasturbinenmaschine
FR2961554B1 (fr) * 2010-06-18 2012-07-20 Snecma Secteur angulaire de redresseur pour compresseur de turbomachine, redresseur de turbomachine et turbomachine comprenant un tel secteur
FR2961553B1 (fr) * 2010-06-18 2012-08-31 Snecma Secteur angulaire de redresseur pour compresseur de turbomachine, redresseur de turbomachine et turbomachine comprenant un tel secteur
US20120107546A1 (en) * 2010-10-28 2012-05-03 Gm Global Technology Operations, Inc. Coulomb damping and/or viscous damping insert using ultrasonic welding
DE102011010327A1 (de) * 2011-02-04 2012-08-09 Mtu Aero Engines Gmbh Dämpfungsring und Turbomaschine mit einem derartigen Dämpfungsring
US9151170B2 (en) * 2011-06-28 2015-10-06 United Technologies Corporation Damper for an integrally bladed rotor
US20130156584A1 (en) * 2011-12-16 2013-06-20 Carney R. Anderson Compressor rotor with internal stiffening ring of distinct material
JP2012122485A (ja) * 2012-03-23 2012-06-28 Mitsubishi Heavy Ind Ltd ブリスク
JP2013253522A (ja) * 2012-06-06 2013-12-19 Ihi Corp ブリスク
FR2998609B1 (fr) * 2012-11-27 2018-08-10 Safran Aircraft Engines Etage redresseur de turbomachine comportant un logement et un assemblage de cordons
US9194238B2 (en) * 2012-11-28 2015-11-24 General Electric Company System for damping vibrations in a turbine
JP6138468B2 (ja) * 2012-12-07 2017-05-31 三菱重工航空エンジン株式会社 翼振動減衰構造
US10557352B2 (en) 2014-09-09 2020-02-11 Rolls-Royce Corporation Piezoelectric damping rings
US9841072B2 (en) * 2014-10-02 2017-12-12 Ford Global Technologies, Llc Damped brake components and methods of manufacturing the same
GB201506196D0 (en) 2015-04-13 2015-05-27 Rolls Royce Plc Rotor damper
GB201506197D0 (en) 2015-04-13 2015-05-27 Rolls Royce Plc Rotor damper
GB201506195D0 (en) * 2015-04-13 2015-05-27 Rolls Royce Plc Rotor damper
RU2583205C1 (ru) * 2015-04-14 2016-05-10 Открытое акционерное общество "Авиадвигатель" Устройство демпфирования колебаний рабочих колес блискового типа газотурбинного двигателя
RU2610357C1 (ru) * 2015-11-10 2017-02-09 федеральное государственное бюджетное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" Устройство демпфирования колебаний рабочих колес блискового типа газотурбинного двигателя
US10724375B2 (en) * 2016-02-12 2020-07-28 General Electric Company Gas turbine engine with ring damper
DE102016207874A1 (de) * 2016-05-09 2017-11-09 MTU Aero Engines AG Impulskörpermodul für eine Strömungsmaschine
US10697320B2 (en) 2017-01-20 2020-06-30 Rolls-Royce Corporation Piezoelectric vibratory control for static engine components
US10865646B2 (en) 2017-05-04 2020-12-15 Rolls-Royce Corporation Turbine assembly with auxiliary wheel
US10774678B2 (en) 2017-05-04 2020-09-15 Rolls-Royce Corporation Turbine assembly with auxiliary wheel
US20180320522A1 (en) * 2017-05-04 2018-11-08 Rolls-Royce Corporation Turbine assembly with auxiliary wheel
US10968744B2 (en) 2017-05-04 2021-04-06 Rolls-Royce Corporation Turbine rotor assembly having a retaining collar for a bayonet mount
DE102018208229A1 (de) * 2018-05-24 2019-11-28 MTU Aero Engines AG Turbomaschinenbaugruppe mit einer Verstimmeinrichtung zur unterschiedlichen Verstimmung von Eigenfrequenzen der Schaufeln
US11021995B2 (en) * 2018-08-06 2021-06-01 Raytheon Technologies Corporation Imbalance damping devices for gas turbine engine fan shaft bearings
JP7178874B2 (ja) * 2018-11-01 2022-11-28 三菱重工航空エンジン株式会社 回転機械の翼の制振装置及びこれを備えた回転機械
US10947995B1 (en) * 2019-08-27 2021-03-16 Pratt & Whitney Canada Corp. Fan nose cone and dynamic tuning of aircrafts
CN114165812B (zh) * 2020-09-11 2023-05-12 中国航发商用航空发动机有限责任公司 燃油喷嘴、燃烧室、燃气涡轮发动机以及减振方法
US11542826B2 (en) * 2021-03-18 2023-01-03 General Electric Company Labyrinth seals
CN113175357A (zh) * 2021-05-14 2021-07-27 中国航发湖南动力机械研究所 一种阻尼环装置
US20230117555A1 (en) * 2021-10-15 2023-04-20 Raytheon Technologies Corporation Blade vibration mitigation of integrally bladed rotor by damping on disk
US11686202B1 (en) 2021-12-20 2023-06-27 Rolls-Royce North American Technologies Inc. Rotor damper with contact biasing feature for turbine engines
CN116658251A (zh) * 2022-02-21 2023-08-29 中国航发商用航空发动机有限责任公司 轮盘和转子
GB202218282D0 (en) * 2022-12-06 2023-01-18 Rolls Royce Plc Rotor balancing apparatus
US20240271537A1 (en) * 2023-02-14 2024-08-15 Raytheon Technologies Corporation Machinable coating for damping
DE102023107888A1 (de) * 2023-03-28 2024-10-02 MTU Aero Engines AG Dämpferring zur Reduzierung von unerwünschten Schwingungen einer Blisk, sowie Blisk und Turbomaschine
US12228052B2 (en) * 2023-07-19 2025-02-18 Pratt & Whitney Canada Corp. Integrally bladed rotor with increased rim bending stiffness
GB202400108D0 (en) 2024-01-04 2024-02-21 Rolls Royce Plc A rotor stage for a gas turbine engine

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1856786A (en) * 1931-10-16 1932-05-03 Gen Electric Bucket wheel and like rotating member
BE554667A (enExample) * 1956-02-03
US3181835A (en) * 1964-01-07 1965-05-04 Carroll C Davis Blade vibration damping device
US3677662A (en) * 1970-10-09 1972-07-18 Avco Corp Multilayer ring damped turbomachine rotor assembly
US3888601A (en) * 1974-05-23 1975-06-10 Gen Electric Turbomachine with balancing means
US3881844A (en) * 1974-05-28 1975-05-06 Gen Electric Blade platform vibration dampers
DE2729340C3 (de) * 1977-06-29 1981-10-08 Kraftwerk Union AG, 4330 Mülheim Vorrichtung zur Schwingungsdämpfung an Turbomaschinenläufern
US4294135A (en) * 1979-01-12 1981-10-13 The United States Of America As Represented By The Secretary Of The Navy Turbomachine balance correction system
US4361213A (en) * 1980-05-22 1982-11-30 General Electric Company Vibration damper ring
US4482297A (en) * 1981-11-16 1984-11-13 Terry Corporation Bladed rotor assembly
CH666722A5 (de) * 1985-07-05 1988-08-15 Bbc Brown Boveri & Cie Laufschaufelkranz einer axial durchstroemten turbomaschine.
DE3711359A1 (de) * 1987-04-08 1989-01-26 Helmut Pelzer Daempfungsmittel zum daempfen der schallabstrahlung als luftschall oder koerperschall fuer raeder, insbesondere zahnraeder
JPS63293344A (ja) * 1987-05-26 1988-11-30 Mitsubishi Electric Corp 粘性ダンパ−
JPH01220742A (ja) * 1988-02-26 1989-09-04 Mitsui Eng & Shipbuild Co Ltd 回転体のバランス方法
US5074723A (en) * 1989-04-13 1991-12-24 Kennametal Inc. Method and apparatus for balancing a rotary tool assembly
US5201850A (en) 1991-02-15 1993-04-13 General Electric Company Rotor tip shroud damper including damper wires
US5142936A (en) 1992-01-31 1992-09-01 Mcgale Peter J Apparatus for dynamical balancing of rotating objects and method for making same
US5256035A (en) * 1992-06-01 1993-10-26 United Technologies Corporation Rotor blade retention and sealing construction
FR2697284B1 (fr) * 1992-10-27 1995-01-27 Europ Propulsion Procédé de fabrication d'une roue de turbine à aubes insérées et roue obtenue par le procédé.
JPH06288463A (ja) * 1993-03-31 1994-10-11 Brother Ind Ltd タイミングプーリ
JP3147612B2 (ja) * 1993-10-04 2001-03-19 いすゞ自動車株式会社 分岐型排気管用ダンパー
JPH07102962A (ja) * 1993-10-04 1995-04-18 Isuzu Motors Ltd 排気管用ダンパー
JPH08145147A (ja) * 1994-11-17 1996-06-04 Hino Motors Ltd ギヤ、プーリ等の回転体
US5749269A (en) * 1996-04-26 1998-05-12 Vibratech, Inc. Dual-mode, viscous crankshaft vibration damper
US5855260A (en) * 1996-12-13 1999-01-05 The Aerospace Corporation Tuned broadband particulate vibration absorber
JP3766179B2 (ja) * 1997-05-19 2006-04-12 株式会社リコー フライホイール
JPH1182298A (ja) * 1997-09-09 1999-03-26 Sanden Corp 振動減衰装置
JP3712523B2 (ja) * 1998-04-06 2005-11-02 三菱重工業株式会社 制振装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10364703B2 (en) 2013-11-14 2019-07-30 Safran Aircraft Engines Annular element of a turbomachine casing

Also Published As

Publication number Publication date
EP1074762A3 (en) 2003-12-17
DE60039389D1 (de) 2008-08-21
US6494679B1 (en) 2002-12-17
EP1965093B1 (en) 2012-02-22
EP1074762B1 (en) 2008-07-09
EP1074762A2 (en) 2001-02-07
EP1965093A3 (en) 2008-09-17
EP1965093A2 (en) 2008-09-03
JP2001082544A (ja) 2001-03-27

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