WO2003062606A1 - Verfahren zur frequenzveränderung von schaufeln für thermische strömungsmaschinen - Google Patents
Verfahren zur frequenzveränderung von schaufeln für thermische strömungsmaschinen Download PDFInfo
- Publication number
- WO2003062606A1 WO2003062606A1 PCT/CH2003/000022 CH0300022W WO03062606A1 WO 2003062606 A1 WO2003062606 A1 WO 2003062606A1 CH 0300022 W CH0300022 W CH 0300022W WO 03062606 A1 WO03062606 A1 WO 03062606A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blade
- blades
- frequency
- changing
- coating
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
-
- 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
- F05D2230/00—Manufacture
- F05D2230/30—Manufacture with deposition of material
- F05D2230/31—Layer deposition
- F05D2230/311—Layer deposition by torch or flame spraying
-
- 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
- F05D2230/00—Manufacture
- F05D2230/90—Coating; Surface treatment
Definitions
- the invention relates to the field of thermal flow machines. It relates to a method for changing the frequency of blades, in particular turbine blades, which are already largely ready for use in the turbomachine.
- the performance of a gas turbine is essentially determined by the mass flows processed, such as fuel and air.
- the quality of the blading has an impact on the level of efficiency of a gas turbine.
- the blade dimensions e.g. B. the chord length, the blade height, the curvature, the profile, the twist and the Blade spacing determines the most suitable flow data of a stage for the turbine, e.g. inflow and outflow angle, pressure ratio, gas velocity and quantity.
- the aim of the invention is to avoid the disadvantages of the prior art mentioned.
- the invention is based on the object of developing a method for changing the frequency of blades, in particular turbine blades, which can be used quickly and easily in blades which are already ready for use. Because of the high aerodynamic sensitivity of the blades, the changes in the airfoil profile should only be very small.
- this object is achieved in a method according to the preamble of claim 1 in that a metallic coating made of a material identical to the base material is applied in the area of the blade tip to the already ready-to-use blade, the thickness of the coating being at the trailing edge and in a radial direction Continuously tapered towards the blade root.
- the advantages of the invention consist in the fact that with the method according to the invention it is possible, very quickly in the case of turbine blades, what differences between the theoretical frequency calculation during the design phase and the actual difference measured frequency to change the frequency. This can prevent the components from failing during machine operation due to resonance excitation.
- the metallic coating is applied to the airfoil by means of a flame spraying process.
- the flame spraying process can be used relatively universally. Material thicknesses can be realized in relatively wide areas.
- Fig. 1 is a side view of a gas turbine blade
- FIG. 2 shows a section along the line II-II in FIG. 1.
- FIGS. 1 and 2 The invention is explained in more detail below using an exemplary embodiment and FIGS. 1 and 2.
- Fig. 1 shows a side view of a blade 1 of a gas turbine.
- the guide vane 1 consists of an airfoil 2, a blade root 3 and a platform 4 arranged between them, from which the airfoil 2 extends integrally.
- the blade root 3 is used for attachment the turbine blade 1 in a turbine rotor, not shown.
- the airfoil 2 has a pressure side 5 and a suction side 6 (not visible in FIG. 1), which adjoin one another at an outlet edge 7, and a blade tip 9.
- Fig. 1 the view of the pressure side 5 of the airfoil 2 is shown.
- FIG. 2 shows a section along the plane II-II of FIG. 1.
- the inner contour of the blade 1, which has an internal cooling system is not shown in FIG. 2.
- the ready-to-use blade 2 is provided with a metallic one prior to installation on the blade tip 9 Cover 8 provided.
- the coating (8) consists of a material identical to the base material.
- the metal is preferably applied to the airfoil 2 by means of a flame spray process known per se. It is important that the thickness of the metallic coating 8 tapers continuously at the trailing edge 7 and in the radial direction towards the blade root 3.
- the method according to the invention is inexpensive and can be implemented in a very short time.
- the flame spraying method is particularly well suited, since it creates "soft" continuous transitions in the application thickness and the material 8 to be applied can be placed at the right places in a precisely limited manner without rework being necessary.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50313322T DE50313322D1 (de) | 2002-01-22 | 2003-01-16 | Verfahren zur frequenzveränderung von schaufeln für thermische strömungsmaschinen |
EP03700009A EP1468170B1 (de) | 2002-01-22 | 2003-01-16 | Verfahren zur frequenzveränderung von schaufeln für thermische strömungsmaschinen |
US10/892,278 US20050042384A1 (en) | 2002-01-22 | 2004-07-16 | Method of altering the frequency of blades for thermal fluid-flow machines |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH104/02 | 2002-01-22 | ||
CH00104/02A CH695461A5 (de) | 2002-01-22 | 2002-01-22 | Verfahren zur Frequenzveränderung von Schaufeln für thermische Strömungsmaschinen. |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/892,278 Continuation US20050042384A1 (en) | 2002-01-22 | 2004-07-16 | Method of altering the frequency of blades for thermal fluid-flow machines |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003062606A1 true WO2003062606A1 (de) | 2003-07-31 |
Family
ID=27587778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2003/000022 WO2003062606A1 (de) | 2002-01-22 | 2003-01-16 | Verfahren zur frequenzveränderung von schaufeln für thermische strömungsmaschinen |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050042384A1 (de) |
EP (1) | EP1468170B1 (de) |
CH (1) | CH695461A5 (de) |
DE (1) | DE50313322D1 (de) |
WO (1) | WO2003062606A1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1985803A1 (de) * | 2007-04-23 | 2008-10-29 | Siemens Aktiengesellschaft | Verfahren zum Herstellen von beschichteten Turbinenlaufschaufeln |
DE102009033618A1 (de) | 2009-07-17 | 2011-01-20 | Mtu Aero Engines Gmbh | Verfahren zur Frequenzverstimmung eines Rotorkörpers einer Gasturbine und ein Rotor einer Gasturbine |
EP1813773A3 (de) * | 2006-01-31 | 2011-04-20 | Rolls-Royce plc | Beschaufelung mit verbessertem Schwingungsverhalten und Verfahren zu dessen Herstellung |
DE102009053247A1 (de) * | 2009-11-13 | 2011-05-19 | Mtu Aero Engines Gmbh | Verfahren zum Verändern einer Eigenfrequenz einer Schaufel für eine Strömungsmaschine |
EP2617945A1 (de) | 2012-01-23 | 2013-07-24 | MTU Aero Engines GmbH | Rotor für eine Strömungsmaschine |
DE102022200711A1 (de) | 2022-01-24 | 2023-07-27 | Siemens Energy Global GmbH & Co. KG | Teilweise beschichtete Turbinenschaufel, Rotor und Verfahren |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2450937B (en) * | 2007-07-13 | 2009-06-03 | Rolls Royce Plc | Component with tuned frequency response |
US20100028133A1 (en) * | 2008-07-30 | 2010-02-04 | General Electric Company | Turbomachine component damping structure and method of damping vibration of a turbomachine component |
US9145775B2 (en) * | 2012-03-02 | 2015-09-29 | United Technologies Corporation | Tapered thermal coating for airfoil |
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 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4097193A (en) * | 1975-12-24 | 1978-06-27 | Messerschmitt-Boelkow-Blohm Gmbh | Elastomeric damping arrangement |
US4118147A (en) * | 1976-12-22 | 1978-10-03 | General Electric Company | Composite reinforcement of metallic airfoils |
US4380574A (en) * | 1977-05-09 | 1983-04-19 | Bbc Brown, Boveri & Company, Ltd. | High-damping composite material |
US6155789A (en) * | 1999-04-06 | 2000-12-05 | General Electric Company | Gas turbine engine airfoil damper and method for production |
US6213721B1 (en) * | 1993-11-09 | 2001-04-10 | Thomson Marconi Sonar Limited | Noise emission reduction |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3357850A (en) * | 1963-05-09 | 1967-12-12 | Gen Electric | Vibration damping turbomachinery blade |
US3758233A (en) * | 1972-01-17 | 1973-09-11 | Gen Motors Corp | Vibration damping coatings |
DE4310896C1 (de) * | 1993-04-02 | 1994-03-24 | Thyssen Industrie | Verfahren zum Herstellen von verschleißfesten Kanten an Turbinenschaufeln |
US6059533A (en) * | 1997-07-17 | 2000-05-09 | Alliedsignal Inc. | Damped blade having a single coating of vibration-damping material |
GB2346415A (en) | 1999-02-05 | 2000-08-09 | Rolls Royce Plc | Vibration damping |
-
2002
- 2002-01-22 CH CH00104/02A patent/CH695461A5/de not_active IP Right Cessation
-
2003
- 2003-01-16 EP EP03700009A patent/EP1468170B1/de not_active Expired - Fee Related
- 2003-01-16 DE DE50313322T patent/DE50313322D1/de not_active Expired - Lifetime
- 2003-01-16 WO PCT/CH2003/000022 patent/WO2003062606A1/de not_active Application Discontinuation
-
2004
- 2004-07-16 US US10/892,278 patent/US20050042384A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4097193A (en) * | 1975-12-24 | 1978-06-27 | Messerschmitt-Boelkow-Blohm Gmbh | Elastomeric damping arrangement |
US4118147A (en) * | 1976-12-22 | 1978-10-03 | General Electric Company | Composite reinforcement of metallic airfoils |
US4380574A (en) * | 1977-05-09 | 1983-04-19 | Bbc Brown, Boveri & Company, Ltd. | High-damping composite material |
US6213721B1 (en) * | 1993-11-09 | 2001-04-10 | Thomson Marconi Sonar Limited | Noise emission reduction |
US6155789A (en) * | 1999-04-06 | 2000-12-05 | General Electric Company | Gas turbine engine airfoil damper and method for production |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1813773A3 (de) * | 2006-01-31 | 2011-04-20 | Rolls-Royce plc | Beschaufelung mit verbessertem Schwingungsverhalten und Verfahren zu dessen Herstellung |
US8656589B2 (en) | 2006-01-31 | 2014-02-25 | Rolls-Royce Plc | Aerofoil assembly and a method of manufacturing an aerofoil assembly |
EP1985803A1 (de) * | 2007-04-23 | 2008-10-29 | Siemens Aktiengesellschaft | Verfahren zum Herstellen von beschichteten Turbinenlaufschaufeln |
WO2008128902A1 (de) * | 2007-04-23 | 2008-10-30 | Siemens Aktiengesellschaft | Verfahren zum herstellen von beschichteten turbinenlaufschaufeln und laufschaufelring für einen rotor einer axial durchströmten turbine |
US8607455B2 (en) | 2007-04-23 | 2013-12-17 | Siemens Aktiengesellschaft | Method for the production of coated turbine moving blades and moving-blade ring for a rotor of an axial-throughflow turbine |
DE102009033618A1 (de) | 2009-07-17 | 2011-01-20 | Mtu Aero Engines Gmbh | Verfahren zur Frequenzverstimmung eines Rotorkörpers einer Gasturbine und ein Rotor einer Gasturbine |
DE102009053247A1 (de) * | 2009-11-13 | 2011-05-19 | Mtu Aero Engines Gmbh | Verfahren zum Verändern einer Eigenfrequenz einer Schaufel für eine Strömungsmaschine |
EP2617945A1 (de) | 2012-01-23 | 2013-07-24 | MTU Aero Engines GmbH | Rotor für eine Strömungsmaschine |
US9657581B2 (en) | 2012-01-23 | 2017-05-23 | Mtu Aero Engines Gmbh | Rotor for a turbomachine |
DE102022200711A1 (de) | 2022-01-24 | 2023-07-27 | Siemens Energy Global GmbH & Co. KG | Teilweise beschichtete Turbinenschaufel, Rotor und Verfahren |
Also Published As
Publication number | Publication date |
---|---|
EP1468170B1 (de) | 2010-12-15 |
DE50313322D1 (de) | 2011-01-27 |
EP1468170A1 (de) | 2004-10-20 |
CH695461A5 (de) | 2006-05-31 |
US20050042384A1 (en) | 2005-02-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1468170B1 (de) | Verfahren zur frequenzveränderung von schaufeln für thermische strömungsmaschinen | |
EP0990090B1 (de) | Rotor-schaufelblatt einer axialströmungsmaschine | |
CH704034B1 (de) | Turbine und Verfahren zur Herstellung derselben. | |
EP0635623A1 (de) | Laufrad einer Turbomaschine | |
EP2067567B1 (de) | Verfahren zur Herstellung von in Integralbauweise ausgebildeten Laufrädern für Verdichter und Turbinen | |
CH702980A1 (de) | Dichtstruktur an einem Deckband einer Turbinenlaufschaufel. | |
EP3093372A2 (de) | Abdeckverfahren zur herstellung einer kombination von schaufelspitzenpanzerung und erosionsschutzschicht | |
DE10356237A1 (de) | Dämpfungsanordnung für eine Schaufel einer Axialturbine | |
EP2054587A2 (de) | Turbinengehäuse | |
DE102007031932A1 (de) | Turbomaschinenschaufel | |
DE19957718C1 (de) | Schaufel mit optimiertem Schwingungsverhalten | |
DE19654123C2 (de) | Reibschweißverfahren und Schutzgasdusche zur Durchführung des Verfahrens | |
DE2740192C2 (de) | Spaltdichtung für eine um ihre Längsachse verstellbare, axial umströmte Leitschaufel einer Strömungsmaschine | |
EP1315886B1 (de) | Strömungsmaschine sowie turbinenschaufel | |
DE102017204243A1 (de) | Dichtfin mit zumindest einer gewölbten Seitenflanke | |
DE112009002266B4 (de) | Schaufelreihe für die Endstufe einer Dampfturbine | |
EP2220342A1 (de) | Erosionsschutzschild für laufschaufeln | |
EP3590632B1 (de) | Schaufelanordnung für eine gasturbine und verfahren zum herstellen der schaufelanordnung | |
DE102005054866A1 (de) | Verfahren zum Herstellen von metallischen Bauteilen, insbesondere für Turbomaschinen, mit kleinen Kantenradien | |
DE102018200964A1 (de) | Rotorschaufeldeckband für eine Strömungsmaschine, Rotorschaufel, Verfahren zum Herstellen eines Rotorschaufeldeckbands und einer Rotorschaufel | |
DE10254823A1 (de) | Verfahren zur Herstellung von Versuchsschaufeln für thermische Strömungsmaschinen | |
DE102008061235B4 (de) | Schwingungsreduzierung in einem Abgasturbolader | |
DE102016217605A1 (de) | Vorrichtung und Verfahren zur Ausbesserung der Vorderkante einer Kompressor- oder Turbinenschaufel | |
EP3362648B1 (de) | Verfahren zum herstellen eines grundkörpers einer turbinenschaufel | |
DE102018221161B4 (de) | Abgasturbine eines Abgasturboladers sowie Abgasturbolader mit einem strömungstechnischen Störelement im Turbinengehäuse |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SC SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2003700009 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10892278 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2003700009 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |