EP3000976A1 - Procédé de manipulation d'un état d'oscillation d'un élément de rotor, système et turbomachine - Google Patents

Procédé de manipulation d'un état d'oscillation d'un élément de rotor, système et turbomachine Download PDF

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Publication number
EP3000976A1
EP3000976A1 EP14186853.9A EP14186853A EP3000976A1 EP 3000976 A1 EP3000976 A1 EP 3000976A1 EP 14186853 A EP14186853 A EP 14186853A EP 3000976 A1 EP3000976 A1 EP 3000976A1
Authority
EP
European Patent Office
Prior art keywords
component
vibration
magnetic field
control
controllable electromagnet
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.)
Withdrawn
Application number
EP14186853.9A
Other languages
German (de)
English (en)
Inventor
Francois Benkler
Christoph Biela
Stefan Braun
Olga Deiss
Daniel Gloss
Florian Hiss
Harald Hoell
Anna KNÖDLER
Florian Purps
Nicola Siebenborn
Julian Timmermann
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP14186853.9A priority Critical patent/EP3000976A1/fr
Publication of EP3000976A1 publication Critical patent/EP3000976A1/fr
Withdrawn legal-status Critical Current

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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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/04—Antivibration arrangements
    • F01D25/06—Antivibration arrangements for preventing 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
    • F01D5/26—Antivibration means not restricted to blade form or construction or to blade-to-blade connections or to the use of particular materials
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/02—Arrangement of sensing elements
    • 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
    • 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
    • F05D2270/00—Control
    • F05D2270/01—Purpose of the control system
    • F05D2270/11—Purpose of the control system to prolong engine life
    • F05D2270/114—Purpose of the control system to prolong engine life by limiting mechanical stresses
    • 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
    • F05D2270/00—Control
    • F05D2270/30—Control parameters, e.g. input parameters
    • F05D2270/304—Spool rotational speed
    • 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
    • F05D2270/00—Control
    • F05D2270/30—Control parameters, e.g. input parameters
    • F05D2270/334—Vibration measurements

Definitions

  • the invention relates to a method and a system for influencing a vibration state of at least one component of a rotor or a stator of a fluid energy machine.
  • the invention relates to a fluid energy machine, in particular a turbine or a compressor.
  • a fluid energy machine has a rotor with at least one blade ring formed by blades.
  • blade vibrations typically occur. Blade vibration with amplitudes that are above critical vibration amplitudes can degrade the life of a blade and, in the worst case, cause the blade to fail.
  • the object of the invention is to reduce vibrations of a component of a rotor or a stand of a fluid energy machine during operation of the fluid energy machine.
  • vibration-reducing forces are introduced into the component by means of a magnetic field.
  • the state of vibration of the at least one component of the rotor or of the stator of the fluid energy machine is influenced by, during operation, the Fluidsergiemaschine the respective vibration of the component is reduced by means of the magnetic field.
  • the reduction of the respective vibration of the component, in particular a blade or a vane, is thereby a consequence of the vibration-reducing forces introduced into the component by means of the magnetic field.
  • the magnetic field or the forces introduced thereby into the component thus counteract the oscillation of the component, whereby the vibration of the component is damped.
  • the damping of vibrations takes place, for example, a blade through their structural design, which is technically possible only to a limited extent.
  • the damping properties of the blades themselves are limited by aerodynamic specifications, according to which the blades of blades are to be designed as thin as possible in order to give a correspondingly equipped fluid energy machine a higher efficiency. Due to this thin design of blades, however, the blades are much more susceptible to vibrations.
  • the blades of blades can be designed thinner than previously, without the life of the blades is reduced or the blades fail. As a result, the efficiency of a fluid energy machine can be increased by means of the method according to the invention.
  • the influencing of the vibration state of the component according to the invention takes place via the magnetic field and thus without contact.
  • a plurality of components in particular all blades of a blade ring or all vanes of a vane ring, or their vibration states can be influenced accordingly.
  • the magnetic field for example, eddy currents in the component by a relative movement between the component and Magnetic field are generated, which in turn generate a magnetic field.
  • the respective magnetic field generated by the eddy currents can be damped by means of the magnetic field generated for the vibration reduction, whereby the vibration-reducing forces are introduced into the component.
  • a magnetizability of the component for interaction with the vibration-reducing magnetic field and thus for the introduction of forces can be used in the component.
  • a vibration of the component is detected and the magnetic field for introducing the vibration-reducing forces in the component as a function of the respectively detected vibration of the component regulated.
  • the magnetic field is regulated as a function of the respective detected vibration of the component, so that there is the possibility to react during operation of the fluid energy machine variable to a respective existing waveform of the component or counteract this. So it is possible to actively reduce the vibration of the component.
  • the magnetic field can be changed over time.
  • the magnetic field without detection of the vibration of the component in knowledge of operationally occurring vibrations of the component can be generated at certain times or continuously.
  • the vibration of the component formed as a rotor blade is preferably detected by means of at least one radially outwardly to a radially outer orbit of the component arranged vibration sensor, wherein the magnetic field by means of at least one radially outwardly to the radially outer orbit of the component and circumferentially offset to the vibration sensor arranged, generates controllable electromagnet becomes.
  • the vibration sensor and / or the controllable electromagnet can be arranged, for example, on a housing surrounding the rotor of the fluid energy machine.
  • the vibration of the component formed as a blade is alternatively preferably by means of at least one radial outside, to a radially outer orbit of the component arranged, controllable electromagnet detected, wherein the magnetic field is generated by means of the controllable electromagnet.
  • the controllable electromagnet serves both as a vibration sensor and as a magnetic field generator.
  • the controllable electromagnet can be arranged, for example, on a housing surrounding the rotor of the fluid energy machine.
  • At least one parameter of a rotational movement of the rotor and a time of passage of the arranged on the rotor component by a predetermined reference position is detected, is determined based on the parameter and the time when the component reaches an effective range of the controllable electromagnet.
  • This is necessary in order to be able to control the activatable electromagnet for influencing the vibration state of the component at the correct moment, in which the component is in the effective range of the controllable electromagnet.
  • the detection of the time of passage of the component through the predetermined reference position can be upstream or downstream of the detection of the respective vibration of the component with respect to the direction of rotation of the rotor.
  • the correct moment for driving the controllable electromagnet in which the component is in the effective range of the controllable electromagnet can alternatively be determined only from the time of passage of the arranged on the rotor component by the predetermined reference position and a correlation calculation.
  • the system according to the invention for influencing a vibration state of at least one component of a rotor or a stator of a fluid energy machine, in particular a turbine or a compressor comprises at least one controllable electromagnet with which a magnetic field can be generated via which vibration-reducing forces can be introduced into the component.
  • the component may be a blade or a vane.
  • the system may also include two or more vibration sensors and / or controllable electromagnets.
  • the communication-technical connection of the control and / or regulating unit to the vibration sensor and / or the controllable electromagnet can be wired or wireless.
  • the control and / or regulating unit may have at least one microcontroller.
  • controllable electromagnet two functions in one component, namely the controllable electromagnet integrated.
  • the controllable electromagnet simultaneously serves as a vibration sensor and magnetic field generator.
  • the position sensor may be arranged on a housing surrounding the rotor of the fluid energy machine.
  • the sensor unit can detect, for example, the rotational speed of the rotor as a parameter.
  • the control and / or regulating unit can be wired or wireless communication technology connected to the position sensor.
  • the system may comprise a so-called tip-timing system according to this embodiment.
  • the controllable electromagnet can take over the function of the position sensor, which further simplifies the structure of the system.
  • the at least one parameter of the rotational movement of the rotor can alternatively also be determined by a correlation calculation, whereby for structural simplification of the system and the sensor device could be saved.
  • the fluid energy machine according to the invention in particular turbine or compressor, comprises at least one system according to one of the aforementioned embodiments or any combination thereof.
  • the fluid energy machine may be part of a gas turbine or a steam turbine.
  • the fluid energy machine may be a turbomachine.
  • FIG. 1 shows a representation of an exemplary embodiment of a system 1 according to the invention for influencing a vibration state of at least one component 2 in the form of a moving blade of a rotating rotor 3 of a fluid energy machine not further described.
  • the system 1 comprises a vibration sensor 5 arranged radially outside a radially outer circulation path 4 of the component 2 for detecting a vibration of the component 2.
  • the vibration sensor 5 is arranged on a housing 6 surrounding the rotor 3 radially on the outside.
  • the system 1 further comprises a controllable electromagnet 7 for generating a magnetic field 8 arranged radially outside the radially outer circulation path 4 of the component 2 and circumferentially offset from the oscillation sensor 5.
  • system 1 comprises a control and / or regulating unit 9 which is communicatively connected to the vibration sensor 5 and the controllable electromagnet 7.
  • the system 1 furthermore comprises a position sensor 10 which is arranged radially outside the radially outer circulation path 4 of the component 2 and communicatively connected to the control and / or regulating unit 9 for detecting a time of passage of the component 2 through a predetermined reference position, which corresponds to FIG Figure 1 corresponds to the vertical position of the component 2 shown above.
  • a position sensor 10 which is arranged radially outside the radially outer circulation path 4 of the component 2 and communicatively connected to the control and / or regulating unit 9 for detecting a time of passage of the component 2 through a predetermined reference position, which corresponds to FIG Figure 1 corresponds to the vertical position of the component 2 shown above.
  • the system 1 comprises a communication unit with the control and / or regulating unit 9 connected, not shown sensor unit for detecting at least one parameter of a rotational movement of the rotor 3.
  • this parameter can be determined from a correlation calculation using the signal of the position sensor 10.
  • the control and / or regulating unit 9 is set up to control the activatable electromagnet 7 in such a way that the magnetic field 8 for introducing the vibration-reducing forces into the component 2 is regulated as a function of the respective detected oscillation of the component 2.
  • control and / or regulating unit 9 is set up to determine, on the basis of the parameter detected by the sensor unit and the time detected by means of the position sensor 10, when the component 2 reaches an effective range of the controllable electromagnet 7, as in FIG the horizontal position of the component 2 is indicated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP14186853.9A 2014-09-29 2014-09-29 Procédé de manipulation d'un état d'oscillation d'un élément de rotor, système et turbomachine Withdrawn EP3000976A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14186853.9A EP3000976A1 (fr) 2014-09-29 2014-09-29 Procédé de manipulation d'un état d'oscillation d'un élément de rotor, système et turbomachine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14186853.9A EP3000976A1 (fr) 2014-09-29 2014-09-29 Procédé de manipulation d'un état d'oscillation d'un élément de rotor, système et turbomachine

Publications (1)

Publication Number Publication Date
EP3000976A1 true EP3000976A1 (fr) 2016-03-30

Family

ID=51655571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14186853.9A Withdrawn EP3000976A1 (fr) 2014-09-29 2014-09-29 Procédé de manipulation d'un état d'oscillation d'un élément de rotor, système et turbomachine

Country Status (1)

Country Link
EP (1) EP3000976A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018206581A1 (de) * 2018-04-27 2019-10-31 MTU Aero Engines AG Verfahren und Vorrichtung zur aktiven Schwingungsdämpfung in einer Blisk, Strömungsmaschine mit zumindest einer Blisk sowie Computerprogrammprodukt

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005353A (en) * 1986-04-28 1991-04-09 Rolls-Royce Plc Active control of unsteady motion phenomena in turbomachinery
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
EP1596037A2 (fr) * 2004-05-13 2005-11-16 ROLLS-ROYCE plc Agencement d'aubes
DE102009032549A1 (de) * 2009-07-10 2011-01-13 Mtu Aero Engines Gmbh Verfahren zum Mindern von Schwingungsamplituden
US20110148113A1 (en) * 2009-12-17 2011-06-23 Vestas Wind Systems A/S Vibration damping of wind turbine shaft

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005353A (en) * 1986-04-28 1991-04-09 Rolls-Royce Plc Active control of unsteady motion phenomena in turbomachinery
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
EP1596037A2 (fr) * 2004-05-13 2005-11-16 ROLLS-ROYCE plc Agencement d'aubes
DE102009032549A1 (de) * 2009-07-10 2011-01-13 Mtu Aero Engines Gmbh Verfahren zum Mindern von Schwingungsamplituden
US20110148113A1 (en) * 2009-12-17 2011-06-23 Vestas Wind Systems A/S Vibration damping of wind turbine shaft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018206581A1 (de) * 2018-04-27 2019-10-31 MTU Aero Engines AG Verfahren und Vorrichtung zur aktiven Schwingungsdämpfung in einer Blisk, Strömungsmaschine mit zumindest einer Blisk sowie Computerprogrammprodukt

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