EP3999718A1 - Integral beschaufelter turbomaschinen-rotor - Google Patents
Integral beschaufelter turbomaschinen-rotorInfo
- Publication number
- EP3999718A1 EP3999718A1 EP20743063.8A EP20743063A EP3999718A1 EP 3999718 A1 EP3999718 A1 EP 3999718A1 EP 20743063 A EP20743063 A EP 20743063A EP 3999718 A1 EP3999718 A1 EP 3999718A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- body housing
- opening
- pulse body
- fastening element
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 description 8
- 230000018109 developmental process Effects 0.000 description 8
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
- F01D5/34—Rotor-blade aggregates of unitary construction, e.g. formed of sheet laminae
-
- 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
- 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
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
-
- 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
- F05D2250/00—Geometry
- F05D2250/20—Three-dimensional
- F05D2250/24—Three-dimensional ellipsoidal
- F05D2250/241—Three-dimensional ellipsoidal spherical
-
- 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
Definitions
- the present invention relates to an integrally glazed rotor for a turbo machine, in particular a compressor or turbine stage of a gas turbine, a turbo machine, in particular a gas turbine, with the rotor and a method for reducing vibrations of the rotor.
- Integrally bladed turbomachine rotors (“Integrally Bladed Rotor” (IBR) or “BL (ade) l (integrated) DISK”) have rotor blades that are integral with a base body, in one embodiment of a (rotor) disk, which are in a From the guide formed in one piece with the base body, in particular originally formed, or integrally connected to this, preferably welded, soldered and / or glued.
- Such rotors in particular their blades, can be excited to vibrate during operation, which in particular can impair performance.
- One object of an embodiment of the present invention is to improve an integrally be bladed turbomachine rotor, in particular its performance and / or manufacture.
- one or more separately designed impulse body housings is / are or is / will be attached to (at least) one rotor for one, in particular one, turbomachine (each) with the aid of at least one fastening element, which for this purpose is inserted into a Opening of the (respective) impulse body housing ("impulse body housing opening”) and, in one embodiment, an opening of the rotor ("rotor opening”) which is aligned with this impulse body housing opening.
- the or one or more of the impulse body housing and / or the rotor opening (s) extend in the axial direction or is / are or are
- the fastening element (s) is / are introduced into this in the axial direction.
- one or more of the pulse body housings is / are (each) fastened with the aid of exactly or only one fastening element which engages in a pulse body housing opening and a rotor opening.
- one or more of the, in one embodiment ring-like, impulse body housing with the aid of a plurality of fastening elements distributed equidistantly over the circumference in one embodiment, each of which is inserted into an impulse body housing opening and engage in a rotor opening.
- the rotor is an integrally bladed rotor. Due to their weight and / or their strength, such rotors are particularly suitable for gas turbines, in particular aircraft engine gas turbines, whereby vibrations of the integral blades of such rotors can be particularly advantageously reduced by shock contacts between impulse bodies and these receiving cavities in separately formed impulse body housings.
- the rotor is or is in one embodiment in a turbine stage or particularly preferably in a compressor stage of a gas turbine, in particular aircraft engine gas turbines, or provided, in particular set up, or used for this purpose.
- the present invention can be used to particular advantage in such rotors.
- the or one or more of the pulse body housing (each) has one or more cavities in which (in each case) at least, in a preferred embodiment only or precisely, one pulse body with play, in particular for Impact contact between the impulse body and cavity is added.
- the one or more of the pulse body housings (in each case) is / are or is / are net angeord on an outer axial end face of the rotor.
- the one or more of the pulse body housings is / are (in each case) arranged on an inner axial end face of the rotor.
- the or one or more of the impulse body case (j each case) radially at an in one embodiment, is / are or is / are arranged on or within, or below a home nendeckband (s) of the rotor.
- installation space below the rotor blades can be used advantageously and / or the vibration reduction can be improved.
- axial refers to a direction parallel to a (main) machine or rotational axis of the turbo machine or the rotor
- circumferential direction a direction of rotation about this axis
- radial a direction perpendicular to the axial and circumferential direction , especially away from the axis.
- the or one or more cavity (s) of the or one or more of the impulse body housings is / are in the circumferential direction (in each case) from a leading edge or a trailing edge of a (circumferential) next blade of the rotor by a maximum of 25%, in particular not more than 15%, in one embodiment not more than 10%, of a blade pitch spaced apart.
- the blade division is, in a manner customary in the art, a distance in the circumferential direction between adjacent front and rear edges.
- This arrangement of cavities as directly as possible under the leading or trailing edge of one or more rotor blades enables particularly effective vibration reduction to be achieved in one embodiment.
- the one or more of the pulse body housings is / are or is / are frictionally attached to the rotor.
- the fastening element in one embodiment (in each case) at least, precisely or only in one embodiment, one screw or threaded bolt or rivet, in particular it can be such.
- the rotor opening of the or one or more of the pulse body housings has an edge in the form of a closed line or curve or a loop, which is referred to here as a closed edge.
- the rotor opening of the or one or more of the pulse body housings has a slot that is open radially (inward), in particular such that the fastening element can be introduced (from) radially (inward).
- the rotor opening (s) for fastening the or one or more of the pulse body housings (in each case) is / are arranged in an annular flange of the rotor, which in one embodiment is integral. In this way, a particularly effective vibration reduction can be implemented in one embodiment.
- the rotor opening (s) for fastening the or one or more of the pulse body housings (each) is / are arranged in a radially widened section of the annular flange.
- the (pulse body housing) opening of the or one or more of the pulse body housing (each) is designed as a through opening, in particular axially open on both sides.
- the (respective ge) fastening element then extends through this pulse body housing through opening.
- one or more of the fastening element (s) extends through a through opening of the rotor, in particular one that is axially open on both sides. In this way, a particularly effective vibration reduction can be achieved in one embodiment.
- the one or more of the rotor or pulse body housing opening (s) is / are blind hole-like or, in particular axially, one side open or closed, and in a development the fastening element engaging therein is screwed into it.
- the or one or more of the fastening element (s) each have an annular flange, in particular a head, which is supported directly or indirectly on the rotor, in particular rests on the rotor, or is provided for this purpose, is in particular set up or used is, and / or an annular flange, in particular head, which is supported directly or indirectly on the (respective) impulse body housing, in particular rests against the (respective) impulse body housing, or is provided for this purpose, in particular is set up or used.
- the or one or more of the fastening element (s) is / are connected, in particular screwed, to a sleeve, in particular a threaded nut, opposite such an annular flange. In this way, in one embodiment, a larger contact of the fastening element and thereby a particularly effective vibration reduction can be realized.
- the or one or more of the pulse body housings (each) in the circumferential direction on both sides of their pulse body housing opening each have one or more, in one embodiment radially offset from each other, cavities in each of which at least one pulse body with play is accommodated.
- the or one or more of the impulse body housing (each) has two or more radially offset cavities, which in a further development are offset from one another in the circumferential direction by at most twice their (maximum) extent in the circumferential direction and / or in each of which at least one impulse body is accommodated with movement play. In this way, a particularly effective vibration reduction can be implemented in one embodiment.
- the or one or more of the impulse body housing (each) have at least two parts which together delimit the or one or more cavities) of this impulse body housing, in particular define, and together, in one embodiment by the fastening element and / or cohesively, are or will be connected.
- the cavities can be easily (more) filled in one version.
- the cavities can be reliably and / or airtightly sealed in one embodiment and the impulse bodies received in them can be advantageously protected against environmental influences, in particular oxidation.
- the fastening element through openings in
- the two parts also connect with each other , in particular braced, the safety can be increased in one embodiment.
- the two or two of the parts of the or one or more of the pulse body housing (s) are or are each by means of a (first, in particular special inner) seam, which in one embodiment engages around the (respective) pulse body housing opening or -closed, is arranged in a further development along an edge of the (respective) pulse body opening, and / or one, in particular this (first) seam encompassing or closing, in one embodiment concentric to this (first) seam, (second, in particular outer) seam, which in one embodiment surrounds or closes the (respective) pulse body housing opening, in a further development along an outer edge of at least one of these parts. is arranged, materially connected to each other.
- the support of the fastening element can be improved in one embodiment.
- the one or more of the pulse body housings is / are (each) designed like a box.
- it can advantageously be placed locally at particularly suitable points on the rotor.
- the or one or more of the pulse body housing (s) is / are designed in the manner of a ring, in particular encompassing a (rotational) axis of the rotor or the turbo machine in a ring-like manner.
- the assembly on the rotor can be improved in one embodiment.
- FIG. 1 shows a part of an integrally glazed turbomachine rotor according to an embodiment of the present invention in an axial plan view
- FIG. 2 shows a view of a pulse body housing attached to the rotor from the radially inside
- FIG. 4 shows a part of an integrally glazed turbomachine rotor according to a further embodiment of the present invention in FIG. 1 corresponding representation;
- FIG. 5 shows part of an integrally glazed turbomachine rotor according to a further embodiment of the present invention in FIG. 1 corresponding representation
- 6 shows a part of an integrally glazed turbomachine rotor according to a further embodiment of the present invention in FIG. 1 corresponding representation.
- Fig. 1 shows part of an integrally glazed turbomachine rotor according to an embodiment of the present invention in an axial plan view.
- a radially inner shroud 1 with an annular flange 10 and front or rear edges 2 blades integrally formed therewith can be seen in FIG. 1.
- each fürgangsöff openings are formed with a radially inwardly open slot 11.
- the openings have a closed edge (see also FIG. 6).
- Each of these (through) rotor openings 11 is penetrated by a fastening element in the form of a threaded bolt 30, which also penetrates a through opening 41 in a separately constructed, box-like pulse body housing 40.
- the impulse body housings 40 each have a base 42 and a cover 43, which together delimit four cavities 44, in each of which an impulse body 5 is received with play (cf. FIG. 3).
- Base 42 and cover 43 are each welded to one another along an outer edge and along one edge of the pulse body housing opening 41, as indicated by the weld seams 45.
- Annular flanges or heads 3 1 of the threaded bolts 30 are based on the Impulskör pergeophen 40 or their covers 43 from. On the axially opposite side, the threaded bolts 30 are screwed with threaded nuts 32.
- Fig. 4 shows in Fig. 1 corresponding representation a part of an integrally beschaufei th turbo machine rotor according to a further embodiment of the present invention fertilize
- Corresponding elements are identified by identical reference characters, so that reference is made to the preceding description and only differences are discussed below.
- a ring-like pulse body housing 40 ' is fastened to the ring flange 10 of the rotor by threaded bolts 30 distributed equidistantly over its circumference.
- the cavities in the pulse body housing 40 ' are arranged under the respective blade edges 11 in the same way as in the embodiment of FIG. 1.
- Fig. 5 shows in Fig. 1, 4 corresponding representation part of an integrally inspected turbomachine rotor according to a further embodiment of the present invention He.
- Corresponding elements are identified by identical reference symbols, so that reference is made to the above description and only differences are discussed below.
- the pulse body housing 40 are arranged on an outer axial face of the rotor.
- the threaded bolts 30 can also be screwed in in the opposite direction or their ring flanges or heads 3 1 are supported on the ring flange 10.
- rivets 30 ′ can also be used instead of threaded bolts 30, as is indicated by way of example in FIG. 6, which otherwise corresponds to the embodiment of FIG. 5.
- the pulse body housings can also rest against the annular flange 10 with their cover instead of their base.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019210753.2A DE102019210753A1 (de) | 2019-07-19 | 2019-07-19 | Integral beschaufelter Turbomaschinen Rotor |
PCT/DE2020/000147 WO2021013279A1 (de) | 2019-07-19 | 2020-07-02 | Integral beschaufelter turbomaschinen-rotor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3999718A1 true EP3999718A1 (de) | 2022-05-25 |
EP3999718B1 EP3999718B1 (de) | 2024-06-12 |
Family
ID=71728535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20743063.8A Active EP3999718B1 (de) | 2019-07-19 | 2020-07-02 | Integral beschaufelter turbomaschinen-rotor |
Country Status (4)
Country | Link |
---|---|
US (1) | US11867080B2 (de) |
EP (1) | EP3999718B1 (de) |
DE (1) | DE102019210753A1 (de) |
WO (1) | WO2021013279A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102023107888A1 (de) * | 2023-03-28 | 2024-10-02 | MTU Aero Engines AG | Dämpferring zur Reduzierung von unerwünschten Schwingungen einer Blisk, sowie Blisk und Turbomaschine |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1856786A (en) * | 1931-10-16 | 1932-05-03 | Gen Electric | Bucket wheel and like rotating member |
JP3846208B2 (ja) | 2000-09-08 | 2006-11-15 | 東海ゴム工業株式会社 | 車両用制振装置 |
DE102009011963A1 (de) * | 2009-03-05 | 2010-09-09 | Mtu Aero Engines Gmbh | Verfahren zur Herstellung eines integral beschaufelten Rotors |
US8157507B1 (en) * | 2010-01-19 | 2012-04-17 | Florida Turbine Technologies, Inc. | Damped stator assembly |
US9371733B2 (en) * | 2010-11-16 | 2016-06-21 | Mtu Aero Engines Gmbh | Rotor blade arrangement for a turbo machine |
ES2633241T3 (es) * | 2014-07-11 | 2017-09-20 | MTU Aero Engines AG | Álabe de turbomáquina |
DE102014223231B4 (de) * | 2014-11-13 | 2017-09-07 | MTU Aero Engines AG | Turbomaschinenschaufelanordnung |
ES2745381T3 (es) * | 2014-11-24 | 2020-03-02 | MTU Aero Engines AG | Alabe para una turbomáquina y turbomáquina axial |
GB201506197D0 (en) | 2015-04-13 | 2015-05-27 | Rolls Royce Plc | Rotor damper |
DE102016204281A1 (de) * | 2016-03-16 | 2017-09-21 | MTU Aero Engines AG | Turbomaschinenschaufelanordnung |
EP3219916A1 (de) * | 2016-03-16 | 2017-09-20 | MTU Aero Engines GmbH | Verfahren zur herstellung eines impuls-verstimmungsbauteils für eine turbine |
DE102016205995A1 (de) | 2016-04-11 | 2017-10-12 | MTU Aero Engines AG | Leitschaufelsegment |
DE102016207874A1 (de) * | 2016-05-09 | 2017-11-09 | MTU Aero Engines AG | Impulskörpermodul für eine Strömungsmaschine |
DE102016221069A1 (de) | 2016-10-26 | 2018-04-26 | MTU Aero Engines AG | Impulskörpermodul mit Lagesicherung |
US10648347B2 (en) * | 2017-01-03 | 2020-05-12 | General Electric Company | Damping inserts and methods for shrouded turbine blades |
DE102018221533A1 (de) * | 2018-12-12 | 2020-06-18 | MTU Aero Engines AG | Turbomaschinen Schaufelanordnung |
-
2019
- 2019-07-19 DE DE102019210753.2A patent/DE102019210753A1/de active Pending
-
2020
- 2020-07-02 WO PCT/DE2020/000147 patent/WO2021013279A1/de unknown
- 2020-07-02 EP EP20743063.8A patent/EP3999718B1/de active Active
- 2020-07-02 US US17/627,782 patent/US11867080B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US11867080B2 (en) | 2024-01-09 |
DE102019210753A1 (de) | 2021-01-21 |
WO2021013279A1 (de) | 2021-01-28 |
US20220325628A1 (en) | 2022-10-13 |
EP3999718B1 (de) | 2024-06-12 |
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