IT8420516A0 - Sistema modificatore di risposta dinamica, e riduttore di sollecitazioni in complessi di incastri a coda di rondine e di palette. - Google Patents

Sistema modificatore di risposta dinamica, e riduttore di sollecitazioni in complessi di incastri a coda di rondine e di palette.

Info

Publication number
IT8420516A0
IT8420516A0 IT8420516A IT2051684A IT8420516A0 IT 8420516 A0 IT8420516 A0 IT 8420516A0 IT 8420516 A IT8420516 A IT 8420516A IT 2051684 A IT2051684 A IT 2051684A IT 8420516 A0 IT8420516 A0 IT 8420516A0
Authority
IT
Italy
Prior art keywords
dovetail
dynamic response
response modifier
blade joint
modifier system
Prior art date
Application number
IT8420516A
Other languages
English (en)
Other versions
IT1178467B (it
Inventor
Diether Eusebio Carreno
Manubhai Motibhai Patel
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IT8420516A0 publication Critical patent/IT8420516A0/it
Application granted granted Critical
Publication of IT1178467B publication Critical patent/IT1178467B/it

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
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • 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
    • 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)
  • Amplifiers (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
IT20516/84A 1983-04-14 1984-04-13 Sistema modificatore di risposta dinamica, e riduttori di sollecitazioni in complessi di incastri a coda di rondine e di palette IT1178467B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/484,882 US4480957A (en) 1983-04-14 1983-04-14 Dynamic response modification and stress reduction in dovetail and blade assembly

Publications (2)

Publication Number Publication Date
IT8420516A0 true IT8420516A0 (it) 1984-04-13
IT1178467B IT1178467B (it) 1987-09-09

Family

ID=23926022

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20516/84A IT1178467B (it) 1983-04-14 1984-04-13 Sistema modificatore di risposta dinamica, e riduttori di sollecitazioni in complessi di incastri a coda di rondine e di palette

Country Status (8)

Country Link
US (1) US4480957A (it)
JP (1) JPS59229002A (it)
CH (1) CH664602A5 (it)
DE (1) DE3413162A1 (it)
FR (1) FR2544381B1 (it)
GB (1) GB2138078B (it)
IT (1) IT1178467B (it)
NO (1) NO161818C (it)

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US5226784A (en) * 1991-02-11 1993-07-13 General Electric Company Blade damper
GB9109016D0 (en) * 1991-04-26 1991-06-12 Turbine Blading Ltd Turbine blade repair
US5205713A (en) * 1991-04-29 1993-04-27 General Electric Company Fan blade damper
FR2690202B1 (fr) * 1992-04-17 1995-07-07 Alsthom Gec Perfectionnements aux modules haute pression de turbine a rotor tambour avec admission de vapeur a tres hautes caracteristiques.
US5259728A (en) * 1992-05-08 1993-11-09 General Electric Company Bladed disk assembly
DE4323705A1 (de) * 1993-07-15 1995-01-19 Abb Management Ag Turbine
US5435694A (en) * 1993-11-19 1995-07-25 General Electric Company Stress relieving mount for an axial blade
FR2739135B1 (fr) * 1995-09-21 1997-10-31 Snecma Agencement amortisseur monte entre des aubes de rotor
DE19738595C1 (de) * 1997-09-04 1999-02-11 Mtu Muenchen Gmbh Prüfvorrichtung für Dämpfungselemente von Laufschaufeln
GB9724731D0 (en) * 1997-11-25 1998-01-21 Rolls Royce Plc Friction damper
WO2000075491A1 (de) * 1999-06-07 2000-12-14 Siemens Aktiengesellschaft Strömungsmaschine sowie dichtelement für einen rotor einer strömungsmaschine
EP1136654A1 (de) * 2000-03-21 2001-09-26 Siemens Aktiengesellschaft Turbinenlaufschaufel
US6439851B1 (en) * 2000-12-21 2002-08-27 United Technologies Corporation Reduced stress rotor blade and disk assembly
US6901821B2 (en) * 2001-11-20 2005-06-07 United Technologies Corporation Stator damper anti-rotation assembly
US6846159B2 (en) * 2002-04-16 2005-01-25 United Technologies Corporation Chamfered attachment for a bladed rotor
US6786696B2 (en) * 2002-05-06 2004-09-07 General Electric Company Root notched turbine blade
US6773234B2 (en) * 2002-10-18 2004-08-10 General Electric Company Methods and apparatus for facilitating preventing failure of gas turbine engine blades
US6840740B2 (en) * 2002-12-06 2005-01-11 General Electric Company Bucket dovetail design for turbine rotors
US6902376B2 (en) * 2002-12-26 2005-06-07 General Electric Company Compressor blade with dovetail slotted to reduce stress on the airfoil leading edge
US7121803B2 (en) * 2002-12-26 2006-10-17 General Electric Company Compressor blade with dovetail slotted to reduce stress on the airfoil leading edge
US20040213672A1 (en) * 2003-04-25 2004-10-28 Gautreau James Charles Undercut leading edge for compressor blades and related method
US7252481B2 (en) * 2004-05-14 2007-08-07 Pratt & Whitney Canada Corp. Natural frequency tuning of gas turbine engine blades
US7976281B2 (en) * 2007-05-15 2011-07-12 General Electric Company Turbine rotor blade and method of assembling the same
CN101182784B (zh) * 2007-12-03 2011-05-11 南京航空航天大学 应用于航空发动机的风扇/压气机的转子超声叶型的设计方法
US8313289B2 (en) 2007-12-07 2012-11-20 United Technologies Corp. Gas turbine engine systems involving rotor bayonet coverplates and tools for installing such coverplates
JP5091745B2 (ja) * 2008-03-31 2012-12-05 三菱重工業株式会社 タービン翼の嵌合構造
US20090297351A1 (en) * 2008-05-28 2009-12-03 General Electric Company Compressor rotor blade undercut
US8210821B2 (en) * 2008-07-08 2012-07-03 General Electric Company Labyrinth seal for turbine dovetail
US8011894B2 (en) * 2008-07-08 2011-09-06 General Electric Company Sealing mechanism with pivot plate and rope seal
US8210820B2 (en) * 2008-07-08 2012-07-03 General Electric Company Gas assisted turbine seal
US8038405B2 (en) * 2008-07-08 2011-10-18 General Electric Company Spring seal for turbine dovetail
US8215914B2 (en) * 2008-07-08 2012-07-10 General Electric Company Compliant seal for rotor slot
US8210823B2 (en) * 2008-07-08 2012-07-03 General Electric Company Method and apparatus for creating seal slots for turbine components
GB0815482D0 (en) * 2008-08-27 2008-10-01 Rolls Royce Plc A blade and method of making a blade
GB0823347D0 (en) * 2008-12-23 2009-01-28 Rolls Royce Plc Test blade
EP2282010A1 (de) 2009-06-23 2011-02-09 Siemens Aktiengesellschaft Laufschaufel für eine axial durchströmbare Turbomaschine
US9488059B2 (en) * 2009-08-05 2016-11-08 Hamilton Sundstrand Corporation Fan blade dovetail with compliant layer
FR2963383B1 (fr) 2010-07-27 2016-09-09 Snecma Aube de turbomachine, rotor, turbine basse pression et turbomachine equipes d'une telle aube
GB2491121B (en) * 2011-05-23 2014-10-01 Rolls Royce Plc Balancing of rotatable components
JP5968176B2 (ja) * 2012-09-20 2016-08-10 三菱日立パワーシステムズ株式会社 蒸気タービン設備
US9739159B2 (en) * 2013-10-09 2017-08-22 General Electric Company Method and system for relieving turbine rotor blade dovetail stress
GB201408463D0 (en) * 2014-05-13 2014-06-25 Rolls Royce Plc Test blade
US20160186593A1 (en) * 2014-12-31 2016-06-30 General Electric Company Flowpath boundary and rotor assemblies in gas turbines
US11346363B2 (en) 2018-04-30 2022-05-31 Raytheon Technologies Corporation Composite airfoil for gas turbine
US10883370B2 (en) * 2018-08-14 2021-01-05 Raytheon Technologies Corporation Dovetail weight system for rotor balance
JP7269029B2 (ja) * 2019-02-27 2023-05-08 三菱重工業株式会社 動翼及び回転機械

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CA607452A (en) * 1960-10-25 General Motors Corporation Turbine blade lock
US1229490A (en) * 1912-09-19 1917-06-12 Terry Steam Turbine Company Turbine.
GB280221A (en) * 1926-11-06 1928-02-23 Alfred Buechi Improvements in blading for gas and steam turbines
US1699747A (en) * 1927-07-27 1929-01-22 Simonds Saw & Steel Co Saw-tooth construction
GB572058A (en) * 1943-02-13 1945-09-20 British Thomson Houston Co Ltd Improvements in and relating to bladed bodies
GB609446A (en) * 1946-03-14 1948-09-30 Parsons C A & Co Ltd Improvements in or relating to the rotors of gas turbines or the like
FR942236A (fr) * 1946-03-14 1949-02-02 Parsons C A & Co Ltd Perfectionnements apportés ou relatifs aux rotors de turbines à gaz ou autres analogues
GB621315A (en) * 1947-02-17 1949-04-07 Frederick William Walton Morle Improvements relating to compressors and turbines
US2643853A (en) * 1948-07-26 1953-06-30 Westinghouse Electric Corp Turbine apparatus
GB667979A (en) * 1949-07-28 1952-03-12 Rolls Royce Improvements in or relating to axial flow compressors and turbines
US2686655A (en) * 1949-09-02 1954-08-17 Maschf Augsburg Nuernberg Ag Joint between ceramic and metallic parts
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FR1024218A (fr) * 1950-09-01 1953-03-30 Rateau Soc Dispositif d'amortissement de vibrations pour pales d'hélices et ailettes de turbomachines
US2930581A (en) * 1953-12-30 1960-03-29 Gen Electric Damping turbine buckets
US2933286A (en) * 1954-09-15 1960-04-19 Gen Electric Damping turbine buckets
US2913221A (en) * 1955-12-12 1959-11-17 Gen Electric Damping turbine buckets
US2942843A (en) * 1956-06-15 1960-06-28 Westinghouse Electric Corp Blade vibration damping structure
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US3385512A (en) * 1966-09-13 1968-05-28 Orenda Ltd Bladed rotor
US3689177A (en) * 1971-04-19 1972-09-05 Gen Electric Blade constraining structure
US3720480A (en) * 1971-06-29 1973-03-13 United Aircraft Corp Rotor construction
US3809495A (en) * 1973-03-27 1974-05-07 Westinghouse Electric Corp Turbine rotor having cushioned support surfaces for ceramic blades mounted thereon
CH572155A5 (it) * 1974-05-27 1976-01-30 Bbc Sulzer Turbomaschinen
US3887298A (en) * 1974-05-30 1975-06-03 United Aircraft Corp Apparatus for sealing turbine blade damper cavities
US4022545A (en) * 1974-09-11 1977-05-10 Avco Corporation Rooted aerodynamic blade and elastic roll pin damper construction
JPS57122102A (en) * 1981-01-21 1982-07-29 Hitachi Ltd Attaching and fixing structure of rotor blade
JPS57186004A (en) * 1981-05-13 1982-11-16 Hitachi Ltd Structure of rotor for turbo-machine

Also Published As

Publication number Publication date
GB8409388D0 (en) 1984-05-23
IT1178467B (it) 1987-09-09
CH664602A5 (de) 1988-03-15
US4480957A (en) 1984-11-06
FR2544381B1 (fr) 1988-12-02
GB2138078A (en) 1984-10-17
GB2138078B (en) 1987-12-09
JPH0423085B2 (it) 1992-04-21
DE3413162A1 (de) 1984-10-18
FR2544381A1 (fr) 1984-10-19
NO161818C (no) 1989-09-27
NO841488L (no) 1984-10-15
DE3413162C2 (it) 1993-09-09
NO161818B (no) 1989-06-19
JPS59229002A (ja) 1984-12-22

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940427