EP2510380A1 - Überwachungssystem für einen innenraum einer maschine - Google Patents
Überwachungssystem für einen innenraum einer maschineInfo
- Publication number
- EP2510380A1 EP2510380A1 EP10798749A EP10798749A EP2510380A1 EP 2510380 A1 EP2510380 A1 EP 2510380A1 EP 10798749 A EP10798749 A EP 10798749A EP 10798749 A EP10798749 A EP 10798749A EP 2510380 A1 EP2510380 A1 EP 2510380A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- radar
- signature
- machine
- interior
- monitoring system
- 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.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/411—Identification of targets based on measurements of radar reflectivity
- G01S7/412—Identification of targets based on measurements of radar reflectivity based on a comparison between measured values and known or stored values
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/04—Systems determining presence of a target
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/80—Diagnostics
Definitions
- a machine in question is e.g. a gas turbine whose interior is a combustion chamber containing a turbine wheel. It is addressed e.g. also, a pump whose flowed through during operation of the medium to be pumped interior is a pumping chamber with a paddle wheel.
- the interior is lined, for example, with heat protection elements which protect the metal jacket of the machine from the gas burning off in the combustion chamber. Such elements can be completely or partially released and fall into the interior of the machine. Also, parts of the turbine blades may detach from the turbine wheel or blades from the paddle wheel and interfere with the operation of the respective engine. Also, cracks or breaks on the machine or its wall or housing may occur or other foreign body penetrate into the interior.
- a radar receiver receives the radar radiation reflected in the interior and outputs a received signal in accordance with the received radar radiation.
- the monitoring system also includes a control and evaluation unit. This ermit ⁇ telt now - also in departure from the conventional radar technology - from the received signal an actual signature, eg by digital signal processing. This is not primarily intended for imaging, but merely to determine characteristics of the received signal, which are correlated with the geometry of the interior such that deviations in the interior that are to be observed (eg a missing heat protection element , a missing part of a turbine blade, a crack or break in a machine part or other foreign element in the interior) lead to a change in the actual signature.
- the actual signature is the result of a time ⁇ or frequency signal analysis of the received signal.
- an altered spectral distribution of the UWB radar pulse would suggest changes in the interior.
- the control and evaluation also has a target signature, which corresponds in character to the actual signature, but a known error-free machine based defines or represents.
- the target signature is one which, when the machine is known to be faultless, is determined from the received signal as the actual signature.
- the monitoring system further comprises an output unit.
- the target signature can be determined, for example, by a so-called channel sounding technique.
- the monitoring system does not generate an actual real image, for example comparable to a conventional radar image, from the interior of the machine, but rather an abstract actual signature which contains geometrical information or material characteristics of the interior in sufficient spatial resolution as information.
- a deviation of the repeatedly measured during operation of the engine actual signature from the corresponding one of the error-free machine target signature is then observed by the monitoring ⁇ system.
- Received signal e.g. due to density fluctuations and turbulence of a medium located in the interior of the machine are to be considered here.
- Significant changes occur in the signature, e.g. a loose element and a defect in the surface structure of the interior or the
- Outer shell causes the machine or the like, this leads to a deviation of the actual signature of the target signature, which go beyond the above media fluctuations etc. As a result, an error case of the machines is detected and issued according to an error signal.
- the monitoring system implements a new radar method, which not only receives isolated echoes of individual points, eg from aircraft in the airspace, but a radar echo thrown back from the entire space.
- This radar return in the form of the received signal also is not imaged, analyzed son ⁇ countries abstract.
- An actual imaging in the form of a lifelike or pictorial, ie evaluable by a viewer, image of the interior of the interior by the method is desirable, but not necessary, since only an error in the interior to be detected by the system.
- the output of a digital yes / no signal as error ⁇ signal according to "error-free" or "machine error” is sufficient.
- the radar radiation is a narrow band (eg in the microwave range) or ultra wide band (UWB) radar radiation.
- the radar technology for this frequency range is mature and has proven itself many times for radar applications.
- the radar source emits radar radiation, for example in the form of a narrowband or sinusoidal signal, which is reflected in the interior of the machine and received by antennas or the radar receiver again.
- the narrowband radar is realized, for example, as an FMCW (Frequency Modulated Continuous Wave) radar.
- the FMCW radar offers the advantage of a refinement of the detectability of bewegli ⁇ Chen parts.
- the monitoring system comprises a control and evaluation unit for determining a difference signature from the target and actual signature.
- the monitoring system also stores a plurality of stored characteristic difference patterns for a respective characteristic failure of the machine. For example, the known lack of heat protection element of or damage to a turbine blade in a gas turbine will ever ⁇ wells determines a difference signature from the set and actual signature, and as a characteristic difference pattern for the event of an error "missing heat protection element" or "damaged Tur ⁇ binenschaufel" saved.
- the output unit then checks in each case during operation of the machine whether a currently determined differential signature within a tolerance range corresponds to a respective difference pattern and outputs an error signal associated with the respective difference pattern.
- the monitoring system therefore not only provides a yes / no-error signal but in other words, an error code eg "missing heat protection element", "beAU ⁇ interred turbine blade,” etc.
- FIG. 1 shows a machine 2, in the example a gas turbine with a metallic machine wall 4, which surrounds an interior 6.
- the internal space 6 includes a turbine wheel 8 with Turbi ⁇ nenschaufeln lOa-d.
- the machine wall 4 to the inner space 6 out lined with heat protection elements 12a-d (there are sorted ⁇ wells by way of example only a few elements shown).
- the Ma ⁇ machine 2 is surrounded by an outer space fourteenth
- the machine 2 is assigned a monitoring system 20.
- This comprises a central unit 22 and a plurality of antennas, of which only the antennas 24a, b are shown by way of example.
- the antenna 24a is arranged in the outer space 14, the antenna 24b in the inner space 6.
- the central unit 22 contains a radar source 26, which activates the antennas 24a, b via unspecified connecting lines, so that they emit radar radiation 28. Since the machine wall 4 is made of metal, which can not be penetrated by ⁇ of the radar beam 28 is between the antenna 24a and the inner chamber 6 in the in Fig. 1 by the dotted line angedeu- ended beam path 27 of the radar beam 28 in the machine wall 4 a passband 30 in the form of a quartz window is introduced ⁇ .
- the radar beam 28 fills the entire internal space 6, that it reaches the entire interior, thus the inner chamber 6 supplied ⁇ turned surface of the machine wall 4 or the Hitzetikele ⁇ elements 12a-d and the turbine wheel 8.
- the radar beam 28 is reflected by the addressed elements.
- the reflected radar radiation 32 (symbolized by arrows) is picked up again by the antennas 24a, b and guided via an unspecified control line to a radar receiver 34 of the central unit 22.
- the radar receiver 34 generates from the reflected radar radiation 32 a received signal 36, which it transmits to a control and evaluation unit 38 of the central unit 22. This generates from the received signal 36 an actual signature 40a.
- a difference signature 48a, b is now always generated from the actual signature 40a and the desired signature 40b, for example by subtraction.
- characteristic difference patterns 50a, b are stored in the output unit 42.
- the output unit 42 compares the respective difference signature 48a, b with a characteristic difference pattern 50a, b. The latter are each associated with characteristic error cases of the machine 2.
- the difference pattern 50a corresponds to a typical difference signature for the lack of a turbine blade lOa-d and the difference pattern 50b of the charac teristic ⁇ difference signature of a missing Hitzetikele- mentes 12a-d.
- the currently determined Diffe ⁇ ence signature 48a, b a corresponding difference patterns 50a, b corresponds within a tolerance dimension 54
- a specially ⁇ les error signal 52a, b is output as an alternative or in addition to the error signal 46th
- This not only provides information that the machine 2 has an error, but also wel ⁇ cher nature of this error, in the case of the error signal 52a is called this "missing heat protection element", in the case of the error signal 52b "damaged turbine blade".
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009047761A DE102009047761B3 (de) | 2009-12-09 | 2009-12-09 | Überwachungssystem für einen Innenraum einer Maschine |
PCT/EP2010/069268 WO2011070108A1 (de) | 2009-12-09 | 2010-12-09 | Überwachungssystem für einen innenraum einer maschine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2510380A1 true EP2510380A1 (de) | 2012-10-17 |
Family
ID=43640673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10798749A Ceased EP2510380A1 (de) | 2009-12-09 | 2010-12-09 | Überwachungssystem für einen innenraum einer maschine |
Country Status (7)
Country | Link |
---|---|
US (1) | US8466833B2 (de) |
EP (1) | EP2510380A1 (de) |
JP (1) | JP2013513752A (de) |
CN (1) | CN102576070A (de) |
DE (1) | DE102009047761B3 (de) |
RU (1) | RU2513045C2 (de) |
WO (1) | WO2011070108A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009047761B3 (de) * | 2009-12-09 | 2011-06-16 | Areva Np Gmbh | Überwachungssystem für einen Innenraum einer Maschine |
US20130132035A1 (en) * | 2011-11-23 | 2013-05-23 | Ge Aviation Systems Llc | Method for diagnosing a health of an apparatus |
CA2874580A1 (en) * | 2012-05-22 | 2013-11-28 | Baylor University | Method for permittivity distribution measurement with ultra-wideband (uwb)idispersion tomography |
GB201611894D0 (en) | 2016-07-08 | 2016-08-24 | Imp Innovations Ltd | An apparatus and method for generating a motional signature indicative of motion of moving parts of a target machine |
DE102016216412A1 (de) * | 2016-08-31 | 2018-03-01 | Siemens Aktiengesellschaft | Verfahren und Anordnung zur Überwachung eines Heißgasbereichs einer Gasturbine |
US10705198B2 (en) * | 2018-03-27 | 2020-07-07 | Infineon Technologies Ag | System and method of monitoring an air flow using a millimeter-wave radar sensor |
EP4016128A1 (de) * | 2020-12-15 | 2022-06-22 | Rolls-Royce Deutschland Ltd & Co KG | Verfahren und system zur überwachung einer komponente eines flugzeugs |
CN117098142B (zh) * | 2023-10-18 | 2023-12-26 | 济南华科电气设备有限公司 | 一种基于uwb技术的煤矿井下人员定位方法及系统 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4200921A (en) * | 1976-04-22 | 1980-04-29 | Massachusetts Institute Of Technology | Apparatus and method whereby wave energy is correlated with positional relationships in a system |
US4413519A (en) * | 1981-07-29 | 1983-11-08 | Westinghouse Electric Corp. | Turbine blade vibration detection apparatus |
US4507658A (en) * | 1982-07-30 | 1985-03-26 | Westinghouse Electric Corp. | Narrow beam radar installation for turbine monitoring |
BE1005734A5 (fr) * | 1992-04-29 | 1994-01-11 | Icoms Sprl | Procede et systeme de detection. |
GB2322987A (en) * | 1997-03-06 | 1998-09-09 | Marconi Gec Ltd | Object detection in turbine influx or efflux |
GB2322988A (en) * | 1997-03-06 | 1998-09-09 | Marconi Gec Ltd | Damage assessment using radar |
JP2001032724A (ja) * | 1999-07-19 | 2001-02-06 | Toshiba Corp | オンライン寿命診断システム |
DE19950215C2 (de) * | 1999-10-19 | 2001-11-29 | Argotech Ges Fuer Mestechnik M | Verfahren zur Zustands-, Verschleiß- und Bruchüberwachung eines bewegten Maschinenteils sowie Vorrichtung zur Durchführung des Verfahrens |
US6337654B1 (en) * | 1999-11-05 | 2002-01-08 | Lockheed Martin Corporation | A-scan ISAR classification system and method therefor |
US6499350B1 (en) * | 2000-04-04 | 2002-12-31 | Swantech, L.L.C. | Turbine engine foreign object damage detection system |
DE10227677A1 (de) * | 2001-06-22 | 2003-02-20 | Argotech Ges Fuer Mestechnik M | Verfahren und Vorrichtung zur drahtlosen Überwachung des Zustands eines Maschinenteils |
RU2229708C2 (ru) * | 2002-07-25 | 2004-05-27 | Государственное Унитарное Предприятие "Водоканал Санкт-Петербурга" | Способ обнаружения дефектов в трубопроводах, преимущественно коррозионных дефектов в трубопроводах водоснабжения |
JP4638165B2 (ja) | 2003-07-16 | 2011-02-23 | ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト | 枚葉紙を処理する機械 |
US7095221B2 (en) * | 2004-05-27 | 2006-08-22 | Siemens Aktiengesellschaft | Doppler radar sensing system for monitoring turbine generator components |
RU2267094C1 (ru) * | 2004-10-04 | 2005-12-27 | ООО "Радарные технологии-2Т" | Способ и устройство оперативной диагностики механизма |
JP4847527B2 (ja) * | 2005-08-17 | 2011-12-28 | シーメンス アクチエンゲゼルシヤフト | 流体機械の少なくとも1個の翼のtbc被覆の層厚を検出する方法と、この方法を実施するためのtbc被覆層厚測定装置と、この方法およびtbc被覆層厚測定装置の利用 |
US8164510B2 (en) * | 2008-01-31 | 2012-04-24 | Bae Systems Information And Electronic Systems Integration Inc. | Quantity smoother |
CN101413989A (zh) * | 2008-12-01 | 2009-04-22 | 南京航空航天大学 | 基于励磁电流的电励磁双凸极电机整流电路故障诊断方法 |
DE102009047761B3 (de) * | 2009-12-09 | 2011-06-16 | Areva Np Gmbh | Überwachungssystem für einen Innenraum einer Maschine |
US8264400B2 (en) * | 2010-06-03 | 2012-09-11 | Raytheon Company | Signature matching method and apparatus |
-
2009
- 2009-12-09 DE DE102009047761A patent/DE102009047761B3/de not_active Expired - Fee Related
-
2010
- 2010-12-09 JP JP2012542548A patent/JP2013513752A/ja active Pending
- 2010-12-09 WO PCT/EP2010/069268 patent/WO2011070108A1/de active Application Filing
- 2010-12-09 EP EP10798749A patent/EP2510380A1/de not_active Ceased
- 2010-12-09 CN CN2010800476427A patent/CN102576070A/zh active Pending
- 2010-12-09 RU RU2012128495/07A patent/RU2513045C2/ru not_active IP Right Cessation
-
2012
- 2012-05-22 US US13/477,123 patent/US8466833B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2011070108A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN102576070A (zh) | 2012-07-11 |
JP2013513752A (ja) | 2013-04-22 |
RU2513045C2 (ru) | 2014-04-20 |
US20120242537A1 (en) | 2012-09-27 |
WO2011070108A1 (de) | 2011-06-16 |
US8466833B2 (en) | 2013-06-18 |
DE102009047761B3 (de) | 2011-06-16 |
RU2012128495A (ru) | 2014-01-20 |
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