CH709085A8 - Verfahren und Systeme zur Überwachung der Funktionstüchtigkeit von Laufschaufeln. - Google Patents

Verfahren und Systeme zur Überwachung der Funktionstüchtigkeit von Laufschaufeln. Download PDF

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Publication number
CH709085A8
CH709085A8 CH01963/14A CH19632014A CH709085A8 CH 709085 A8 CH709085 A8 CH 709085A8 CH 01963/14 A CH01963/14 A CH 01963/14A CH 19632014 A CH19632014 A CH 19632014A CH 709085 A8 CH709085 A8 CH 709085A8
Authority
CH
Switzerland
Prior art keywords
rotor
blade
monitoring
functioning
blades
Prior art date
Application number
CH01963/14A
Other languages
English (en)
Other versions
CH709085A2 (de
Inventor
Mahesh Raveendranatha Panicker
Ajay Kumar Behera
Venkatesh Rajagopalan
Venkatarao Ryali
Vivek Venugopal Badami
Budhaditya Hazra
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 CH709085A2 publication Critical patent/CH709085A2/de
Publication of CH709085A8 publication Critical patent/CH709085A8/de

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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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/02—Arrangement of sensing elements
    • F01D17/06—Arrangement of sensing elements responsive to speed
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/003—Arrangements for testing or measuring
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/14—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to other specific conditions

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

Die Erfindung betrifft ein System und ein Verfahren zur Überwachung der Funktionstüchtigkeit eines Rotors. Das System enthält ein Verarbeitungssubsystem, das mehrere Frequenzspitzenwerte, die zwei oder mehreren jeweiligen Signalfenstern entsprechen, durch iteratives Verschieben der zwei oder mehreren Signalfenster entlang von Delta-Ankunftszeitsignalen (206), die einer Laufschaufel in dem Rotor entsprechen, generiert, einen oder mehrere Resonanzfrequenz-Rotordrehzahlbereiche der Laufschaufel durch Identifizierung von Rotordrehzahlen, die einem Teilsatz der mehreren Frequenzspitzenwerte entsprechen, bestimmt (214) und die Laufschaufel überwacht, um eines oder mehrere Defekte in der Laufschaufel während der Resonanzfrequenz-Rotordrehzahlbereiche festzustellen.
CH01963/14A 2013-12-26 2014-12-17 Verfahren und Systeme zur Überwachung der Funktionstüchtigkeit von Laufschaufeln. CH709085A8 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/140,654 US20150184533A1 (en) 2013-12-26 2013-12-26 Methods and systems to monitor health of rotor blades

Publications (2)

Publication Number Publication Date
CH709085A2 CH709085A2 (de) 2015-06-30
CH709085A8 true CH709085A8 (de) 2015-08-28

Family

ID=53372178

Family Applications (1)

Application Number Title Priority Date Filing Date
CH01963/14A CH709085A8 (de) 2013-12-26 2014-12-17 Verfahren und Systeme zur Überwachung der Funktionstüchtigkeit von Laufschaufeln.

Country Status (5)

Country Link
US (1) US20150184533A1 (de)
JP (1) JP2015125147A (de)
CN (1) CN104748952A (de)
CH (1) CH709085A8 (de)
DE (1) DE102014118695A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10609714B2 (en) * 2017-07-12 2020-03-31 Qualcomm Incorporated Spatial listen before talk
CN109974849B (zh) * 2019-04-03 2020-05-05 上海交通大学 无参考信号下基于叶尖定时技术的叶片振动在线监测方法
CN113586177B (zh) * 2021-08-10 2022-08-09 西安交通大学 基于单叶端定时传感器的叶片固有频率识别方法
CN114264366A (zh) * 2021-12-22 2022-04-01 南水北调东线江苏水源有限责任公司 一种监测水泵机组泵壳多角度振动分量的方法
US11965424B2 (en) * 2022-06-21 2024-04-23 General Electric Company Electronic overspeed protection system and method

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH068752B2 (ja) * 1986-06-04 1994-02-02 株式会社日立製作所 翼の回転中の振動デ−タの分析処理方法
JPH0364630A (ja) * 1989-07-31 1991-03-20 Nissan Motor Co Ltd ガスタービンエンジンにおけるタービンブレードの異常検出装置
US5206816A (en) * 1991-01-30 1993-04-27 Westinghouse Electric Corp. System and method for monitoring synchronous blade vibration
JP3663609B2 (ja) * 1996-05-22 2005-06-22 石川島播磨重工業株式会社 ガスタービンの動翼故障診断方法および装置
JP2002022616A (ja) * 2000-07-13 2002-01-23 Mitsubishi Heavy Ind Ltd 亀裂診断方法及び亀裂診断装置
JP2003293793A (ja) * 2002-04-05 2003-10-15 Mitsubishi Heavy Ind Ltd 燃焼振動予兆検知装置、ガスタービンシステム及び燃焼振動予兆検知方法
GB0525936D0 (en) * 2005-12-21 2006-02-01 Rolls Royce Plc Methods of analysing apparatus
US7449859B2 (en) * 2007-02-20 2008-11-11 Gm Global Technology Operations, Inc. Reduction of subharmonic oscillation at high frequency operation of a power inverter
FR2937079B1 (fr) * 2008-10-10 2011-08-26 Snecma Procede et systeme de surveillance d'un turboreacteur
US8543341B2 (en) * 2010-06-29 2013-09-24 General Electric Company System and method for monitoring health of airfoils
US8532939B2 (en) * 2008-10-31 2013-09-10 General Electric Company System and method for monitoring health of airfoils
DE102008057556A1 (de) * 2008-11-15 2010-05-20 Mtu Aero Engines Gmbh Verfahren und Vorrichtung zur Risserkennung an Verdichterlaufschaufeln
US8121813B2 (en) * 2009-01-28 2012-02-21 General Electric Company System and method for clearance estimation between two objects
CN101532911B (zh) * 2009-04-24 2011-05-11 华北电力大学 大型汽轮发电机组转子裂纹故障实时诊断方法
EP2299248A1 (de) * 2009-09-14 2011-03-23 Siemens Aktiengesellschaft Verfahren zur Ermittlung von Rissen in Turbinenschaufeln

Also Published As

Publication number Publication date
JP2015125147A (ja) 2015-07-06
CH709085A2 (de) 2015-06-30
CN104748952A (zh) 2015-07-01
US20150184533A1 (en) 2015-07-02
DE102014118695A1 (de) 2015-07-02

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PK Correction

Free format text: ERFINDER BERICHTIGT.

PK Correction

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NV New agent

Representative=s name: GENERAL ELECTRIC TECHNOLOGY GMBH GLOBAL PATENT, CH

AZW Rejection (application)