DE60136151D1 - Rotor mit Schaufeln unterschiedlicher Eigenfrequenz - Google Patents

Rotor mit Schaufeln unterschiedlicher Eigenfrequenz

Info

Publication number
DE60136151D1
DE60136151D1 DE60136151T DE60136151T DE60136151D1 DE 60136151 D1 DE60136151 D1 DE 60136151D1 DE 60136151 T DE60136151 T DE 60136151T DE 60136151 T DE60136151 T DE 60136151T DE 60136151 D1 DE60136151 D1 DE 60136151D1
Authority
DE
Germany
Prior art keywords
blades
rotor
natural frequency
different natural
different
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 - Lifetime
Application number
DE60136151T
Other languages
English (en)
Inventor
Matthew Montgomery
Kerry W Byrne
Rachel J Block
Peter D Silkowski
Sriram Srinivasan
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.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Application granted granted Critical
Publication of DE60136151D1 publication Critical patent/DE60136151D1/de
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
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/10—Anti- vibration means
    • 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
    • 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
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • F05D2260/961—Preventing, counteracting or reducing vibration or noise by mistuning rotor blades or stator vanes with irregular interblade spacing, airfoil 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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
DE60136151T 2000-12-04 2001-11-28 Rotor mit Schaufeln unterschiedlicher Eigenfrequenz Expired - Lifetime DE60136151D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/729,046 US6428278B1 (en) 2000-12-04 2000-12-04 Mistuned rotor blade array for passive flutter control

Publications (1)

Publication Number Publication Date
DE60136151D1 true DE60136151D1 (de) 2008-11-27

Family

ID=24929355

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60136151T Expired - Lifetime DE60136151D1 (de) 2000-12-04 2001-11-28 Rotor mit Schaufeln unterschiedlicher Eigenfrequenz

Country Status (4)

Country Link
US (1) US6428278B1 (de)
EP (1) EP1211383B1 (de)
JP (1) JP3968234B2 (de)
DE (1) DE60136151D1 (de)

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US6814543B2 (en) * 2002-12-30 2004-11-09 General Electric Company Method and apparatus for bucket natural frequency tuning
FR2869069B1 (fr) * 2004-04-20 2008-11-21 Snecma Moteurs Sa Procede pour introduire un desaccordage volontaire sur une roue aubagee de turbomachine roue aubagee presentant un desaccordage volontaire
US7147437B2 (en) * 2004-08-09 2006-12-12 General Electric Company Mixed tuned hybrid blade related method
US20060073022A1 (en) * 2004-10-05 2006-04-06 Gentile David P Frequency tailored thickness blade for a turbomachine wheel
US20070036658A1 (en) * 2005-08-09 2007-02-15 Morris Robert J Tunable gas turbine engine fan assembly
GB0601837D0 (en) * 2006-01-31 2006-03-08 Rolls Royce Plc An aerofoil assembly and a method of manufacturing an aerofoil assembly
WO2008041889A1 (en) * 2006-10-05 2008-04-10 Volvo Aero Corporation Rotor element and method for producing the rotor element
US7753652B2 (en) 2006-12-15 2010-07-13 Siemens Energy, Inc. Aero-mixing of rotating blade structures
EP1985803A1 (de) * 2007-04-23 2008-10-29 Siemens Aktiengesellschaft Verfahren zum Herstellen von beschichteten Turbinenlaufschaufeln
DE102007059155A1 (de) * 2007-12-06 2009-06-10 Rolls-Royce Deutschland Ltd & Co Kg Verfahren zur Herstellung von in Integralbauweise ausgebildeten Laufrädern für Verdichter und Turbinen
US20090155082A1 (en) * 2007-12-18 2009-06-18 Loc Duong Method to maximize resonance-free running range for a turbine blade
US8043063B2 (en) * 2009-03-26 2011-10-25 Pratt & Whitney Canada Corp. Intentionally mistuned integrally bladed rotor
FR2944049B1 (fr) * 2009-04-02 2014-06-27 Turbomeca Roue a aubes dont les pales sont desaccordees
US8419370B2 (en) * 2009-06-25 2013-04-16 Rolls-Royce Corporation Retaining and sealing ring assembly
US8469670B2 (en) * 2009-08-27 2013-06-25 Rolls-Royce Corporation Fan assembly
US8435006B2 (en) * 2009-09-30 2013-05-07 Rolls-Royce Corporation Fan
GB2483059A (en) * 2010-08-23 2012-02-29 Rolls Royce Plc An aerofoil blade with a set-back portion
ITTO20120517A1 (it) * 2012-06-14 2013-12-15 Avio Spa Schiera di profili aerodinamici per un impianto di turbina a gas
EP2685050B1 (de) * 2012-07-11 2017-02-01 General Electric Technology GmbH Leitschaufelanordnung für eine axialturbine
US20140044556A1 (en) * 2012-08-07 2014-02-13 General Electric Company Last stage blade including a plurality of leading edge indentations
US10302100B2 (en) * 2013-02-21 2019-05-28 United Technologies Corporation Gas turbine engine having a mistuned stage
US20160003060A1 (en) * 2013-03-07 2016-01-07 United Technologies Corporation Hybrid fan blades for jet engines
WO2014197119A2 (en) 2013-04-16 2014-12-11 United Technologies Corporation Rotors with modulus mistuned airfoils
EP2942481B1 (de) 2014-05-07 2019-03-27 Rolls-Royce Corporation Rotor für einen gasturbinenmotor
DE102014214270A1 (de) * 2014-07-22 2016-02-18 MTU Aero Engines AG Schaufelgitter für eine Turbomaschine
US11041388B2 (en) * 2015-03-30 2021-06-22 Pratt & Whitney Canada Corp. Blade cutback distribution in rotor for noise reduction
EP3176369B1 (de) * 2015-12-04 2019-05-29 MTU Aero Engines GmbH Gasturbinen-verdichter
US10215194B2 (en) 2015-12-21 2019-02-26 Pratt & Whitney Canada Corp. Mistuned fan
CA2958459A1 (en) 2016-02-19 2017-08-19 Pratt & Whitney Canada Corp. Compressor rotor for supersonic flutter and/or resonant stress mitigation
US10641281B2 (en) 2016-08-08 2020-05-05 United Technologies Corporation Mistuned laminate airfoil
GB201702698D0 (en) * 2017-02-20 2017-04-05 Rolls Royce Plc Fan
US10480535B2 (en) * 2017-03-22 2019-11-19 Pratt & Whitney Canada Corp. Fan rotor with flow induced resonance control
US10458436B2 (en) 2017-03-22 2019-10-29 Pratt & Whitney Canada Corp. Fan rotor with flow induced resonance control
US10823203B2 (en) 2017-03-22 2020-11-03 Pratt & Whitney Canada Corp. Fan rotor with flow induced resonance control
DE102017113998A1 (de) 2017-06-23 2018-12-27 Rolls-Royce Deutschland Ltd & Co Kg Verfahren zur Erzeugung und Auswahl eines Verstimmungsmusters eines eine Mehrzahl von Laufschaufeln aufweisenden Laufrads einer Strömungsmaschine
DE102017115853A1 (de) 2017-07-14 2019-01-17 Rolls-Royce Deutschland Ltd & Co Kg Laufrad einer Strömungsmaschine
US10408231B2 (en) 2017-09-13 2019-09-10 Pratt & Whitney Canada Corp. Rotor with non-uniform blade tip clearance
US10865806B2 (en) 2017-09-15 2020-12-15 Pratt & Whitney Canada Corp. Mistuned rotor for gas turbine engine
US11002293B2 (en) 2017-09-15 2021-05-11 Pratt & Whitney Canada Corp. Mistuned compressor rotor with hub scoops
US10443411B2 (en) 2017-09-18 2019-10-15 Pratt & Whitney Canada Corp. Compressor rotor with coated blades
US10837459B2 (en) * 2017-10-06 2020-11-17 Pratt & Whitney Canada Corp. Mistuned fan for gas turbine engine
GB2567210B (en) 2017-10-06 2020-01-15 Rolls Royce Plc A bladed disk
IT201900017171A1 (it) 2019-09-25 2021-03-25 Ge Avio Srl Protezioni delle punte delle pale di turbina desintonizzate
US11220913B2 (en) 2019-10-23 2022-01-11 Rolls-Royce Corporation Gas turbine engine blades with airfoil plugs for selected tuning
US11255199B2 (en) * 2020-05-20 2022-02-22 Rolls-Royce Corporation Airfoil with shaped mass reduction pocket
US11725520B2 (en) 2021-11-04 2023-08-15 Rolls-Royce Corporation Fan rotor for airfoil damping
US11560801B1 (en) 2021-12-23 2023-01-24 Rolls-Royce North American Technologies Inc. Fan blade with internal magnetorheological fluid damping
US11746659B2 (en) 2021-12-23 2023-09-05 Rolls-Royce North American Technologies Inc. Fan blade with internal shear-thickening fluid damping
US12012865B2 (en) 2021-12-29 2024-06-18 Rolls-Royce North American Technologies Inc. Tailored material property tuning for turbine engine fan blades
US20230349297A1 (en) * 2022-04-29 2023-11-02 Pratt & Whitney Canada Corp. Method of manufacturing a mistuned rotor

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Publication number Priority date Publication date Assignee Title
US4097192A (en) * 1977-01-06 1978-06-27 Curtiss-Wright Corporation Turbine rotor and blade configuration
US4878810A (en) * 1988-05-20 1989-11-07 Westinghouse Electric Corp. Turbine blades having alternating resonant frequencies
US5286168A (en) 1992-01-31 1994-02-15 Westinghouse Electric Corp. Freestanding mixed tuned blade
US5667361A (en) 1995-09-14 1997-09-16 United Technologies Corporation Flutter resistant blades, vanes and arrays thereof for a turbomachine
US5988982A (en) * 1997-09-09 1999-11-23 Lsp Technologies, Inc. Altering vibration frequencies of workpieces, such as gas turbine engine blades
US6042338A (en) * 1998-04-08 2000-03-28 Alliedsignal Inc. Detuned fan blade apparatus and method

Also Published As

Publication number Publication date
US20020067991A1 (en) 2002-06-06
US6428278B1 (en) 2002-08-06
EP1211383B1 (de) 2008-10-15
EP1211383A3 (de) 2004-01-02
JP2002188405A (ja) 2002-07-05
EP1211383A2 (de) 2002-06-05
JP3968234B2 (ja) 2007-08-29

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Legal Events

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