YU45358B - Device for stifling blades oscilation on turbo engines - Google Patents

Device for stifling blades oscilation on turbo engines

Info

Publication number
YU45358B
YU45358B YU1480/86A YU148086A YU45358B YU 45358 B YU45358 B YU 45358B YU 1480/86 A YU1480/86 A YU 1480/86A YU 148086 A YU148086 A YU 148086A YU 45358 B YU45358 B YU 45358B
Authority
YU
Yugoslavia
Prior art keywords
oscilation
stifling
blades
turbo engines
turbo
Prior art date
Application number
YU1480/86A
Other languages
English (en)
Other versions
YU148086A (en
Inventor
P Novacek
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Publication of YU148086A publication Critical patent/YU148086A/xx
Publication of YU45358B publication Critical patent/YU45358B/xx
Priority to HRP-1480/86A priority Critical patent/HRP920469B1/xx

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
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
    • 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
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • 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)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
YU1480/86A 1985-08-31 1986-08-25 Device for stifling blades oscilation on turbo engines YU45358B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HRP-1480/86A HRP920469B1 (en) 1985-08-31 1992-09-25 Apparatus for the vibration damping of turbine engine blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH373085 1985-08-31

Publications (2)

Publication Number Publication Date
YU148086A YU148086A (en) 1990-04-30
YU45358B true YU45358B (en) 1992-05-28

Family

ID=4262270

Family Applications (1)

Application Number Title Priority Date Filing Date
YU1480/86A YU45358B (en) 1985-08-31 1986-08-25 Device for stifling blades oscilation on turbo engines

Country Status (7)

Country Link
US (1) US4722668A (xx)
EP (1) EP0214393B1 (xx)
JP (1) JP2574257B2 (xx)
DE (1) DE3667521D1 (xx)
HR (1) HRP920469B1 (xx)
PL (1) PL152331B1 (xx)
YU (1) YU45358B (xx)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767273A (en) * 1987-02-24 1988-08-30 Westinghouse Electric Corp. Apparatus and method for reducing blade flop in steam turbine
US4815938A (en) * 1987-12-24 1989-03-28 Westinghouse Electric Corp. Shroud gap control for integral shrouded blades
FR2662784B1 (fr) * 1990-06-05 1992-08-14 Snecma Ensemble d'injection pour turbomachine, comprenant un bol de prevaporisation.
US5490759A (en) * 1994-04-28 1996-02-13 Hoffman; Jay Magnetic damping system to limit blade tip vibrations in turbomachines
DE19505389A1 (de) * 1995-02-17 1996-08-22 Abb Research Ltd Schwingungsdämpfung für Turbinenschaufeln
GB9609721D0 (en) * 1996-05-09 1996-07-10 Rolls Royce Plc Vibration damping
FR2753368B1 (fr) * 1996-09-13 1999-01-08 Chauvin Jean Luc Cage d'osteosynthese expansive
JP4058906B2 (ja) * 1997-09-05 2008-03-12 株式会社日立製作所 蒸気タービン
US5967749A (en) * 1998-01-08 1999-10-19 Electric Boat Corporation Controllable pitch propeller arrangement
DE19937146A1 (de) * 1999-08-06 2001-02-08 Abb Research Ltd Magnetische Vorrichtung zur Dämpfung von Schaufelschwingungen bei Turbomaschinen
US6568908B2 (en) 2000-02-11 2003-05-27 Hitachi, Ltd. Steam turbine
US6371727B1 (en) 2000-06-05 2002-04-16 The Boeing Company Turbine blade tip shroud enclosed friction damper
US6482533B2 (en) 2001-03-05 2002-11-19 The Boeing Company Article having imbedded cavity
US6752594B2 (en) 2002-02-07 2004-06-22 The Boeing Company Split blade frictional damper
US6699015B2 (en) 2002-02-19 2004-03-02 The Boeing Company Blades having coolant channels lined with a shape memory alloy and an associated fabrication method
GB0410778D0 (en) * 2004-05-13 2004-06-16 Rolls Royce Plc Blade arrangement
JP2009007981A (ja) * 2007-06-27 2009-01-15 Toshiba Corp 蒸気タービン用長動翼翼列の中間固定支持構造及び蒸気タービン
EP2072755A1 (de) * 2007-12-21 2009-06-24 Siemens Aktiengesellschaft Magnetische Vorrichtung zur Dämpfung von Schaufelschwingungen bei Strömungsmaschinen
EP2253801A1 (en) * 2009-05-12 2010-11-24 Alstom Technology Ltd Rotor blades with vibration damping system
DE102009032549A1 (de) 2009-07-10 2011-01-13 Mtu Aero Engines Gmbh Verfahren zum Mindern von Schwingungsamplituden
CH704127A1 (de) * 2010-11-24 2012-05-31 Alstom Technology Ltd Verfahren zum beeinflussen, insbesondere dämpfen bzw. unterdrücken von während des betriebes auftretenden mechanischen schwingungen in einer turbomaschinenschaufel, turbomaschinenschaufel zur durchführung des verfahrens sowie piezoelektrisches dämpfungselement zum einbau in eine solche turbomaschinenschaufel.
US20120195742A1 (en) * 2011-01-28 2012-08-02 Jain Sanjeev Kumar Turbine bucket for use in gas turbine engines and methods for fabricating the same
US8894368B2 (en) * 2012-01-04 2014-11-25 General Electric Company Device and method for aligning tip shrouds
US10465531B2 (en) 2013-02-21 2019-11-05 General Electric Company Turbine blade tip shroud and mid-span snubber with compound contact angle
EP2803821A1 (en) 2013-05-13 2014-11-19 Siemens Aktiengesellschaft Blade device, blade system, and corresponding method of manufacturing a blade system
US20150176413A1 (en) * 2013-12-20 2015-06-25 General Electric Company Snubber configurations for turbine rotor blades
JP6270531B2 (ja) * 2014-02-21 2018-01-31 三菱日立パワーシステムズ株式会社 動翼体及び回転機械
EP2924245B1 (en) 2014-03-24 2017-03-01 General Electric Technology GmbH Steam turbine with resonance chamber
US10371050B2 (en) * 2014-12-23 2019-08-06 Rolls-Royce Corporation Gas turbine engine with rotor blade tip clearance flow control
US10577940B2 (en) * 2017-01-31 2020-03-03 General Electric Company Turbomachine rotor blade
GB201900378D0 (en) * 2019-01-11 2019-02-27 Rolls Royce Plc Electric machine

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2198784A (en) * 1937-11-27 1940-04-30 Westinghouse Electric & Mfg Co Turbine blade vibration damper
US2430140A (en) * 1945-04-06 1947-11-04 Northrop Hendy Company Turbine blade and mounting
US2906899A (en) * 1955-10-08 1959-09-29 Geneslay Raymond Henri Joseph Damping systems
US2942843A (en) * 1956-06-15 1960-06-28 Westinghouse Electric Corp Blade vibration damping structure
DE1159965B (de) * 1961-08-10 1963-12-27 Bbc Brown Boveri & Cie Einrichtung zur Schwingungsdaempfung an einem Turbinen- oder Verdichter-Schaufelkranz
DE1299004B (de) * 1965-01-19 1969-07-10 Bbc Brown Boveri & Cie Einrichtung zur Schwingungsdaempfung an einem Turbinen-oder Verdichterschaufelkranz
FR1374917A (fr) * 1963-11-21 1964-10-09 Ass Elect Ind Perfectionnements aux déflecteurs d'étanchéité des aubes mobiles de turbines et de compresseurs à écoulement axial
GB1186240A (en) * 1967-12-22 1970-04-02 Rolls Royce Improvements in Blades for Fluid Flow Machines.
GB1276100A (en) * 1968-12-16 1972-06-01 Rolls Royce Bladed member for a fluid flow machine
US3752599A (en) * 1971-03-29 1973-08-14 Gen Electric Bucket vibration damping device
FR2329845A1 (fr) * 1975-10-28 1977-05-27 Europ Turb Vapeur Disposition de liaison continue des aubes mobiles d'une turbo-machine
JPS5510561Y2 (xx) * 1975-10-30 1980-03-07
US4200003A (en) * 1976-03-29 1980-04-29 Facet Enterprises, Inc. Magnetic viscous damper
JPS5392007A (en) * 1977-01-24 1978-08-12 Toshiba Corp Coupling device for movable vane
JPS54125307A (en) * 1978-03-24 1979-09-28 Toshiba Corp Connecting device for turbine movable blades
JPS56147940A (en) * 1980-04-15 1981-11-17 Toshiba Corp Vibration damper for vertical body of rotation
JPS56165777A (en) * 1980-05-21 1981-12-19 Mitsubishi Electric Corp Vertical windmill
JPS5738602A (en) * 1980-08-20 1982-03-03 Toshiba Corp Driving blade connecting apparatus
JPS57103302U (xx) * 1980-12-18 1982-06-25
DE3136320C2 (de) * 1981-09-12 1983-10-20 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5000 Köln Verfahren und Vorrichtung zur Unterdrückung des Außenlast-Tragflügel-Flatterns von Flugzeugen

Also Published As

Publication number Publication date
EP0214393A1 (de) 1987-03-18
YU148086A (en) 1990-04-30
US4722668A (en) 1988-02-02
JPS6255401A (ja) 1987-03-11
DE3667521D1 (de) 1990-01-18
HRP920469B1 (en) 1996-04-30
EP0214393B1 (de) 1989-12-13
PL260782A1 (en) 1987-08-24
PL152331B1 (en) 1990-12-31
JP2574257B2 (ja) 1997-01-22

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