RU2013120155A - METHOD FOR DETECTING FATIGUE DAMAGE TO TURBO UNIT SHAFT - Google Patents

METHOD FOR DETECTING FATIGUE DAMAGE TO TURBO UNIT SHAFT Download PDF

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Publication number
RU2013120155A
RU2013120155A RU2013120155/28A RU2013120155A RU2013120155A RU 2013120155 A RU2013120155 A RU 2013120155A RU 2013120155/28 A RU2013120155/28 A RU 2013120155/28A RU 2013120155 A RU2013120155 A RU 2013120155A RU 2013120155 A RU2013120155 A RU 2013120155A
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RU
Russia
Prior art keywords
shaft
fatigue damage
frequency
turbine unit
torsional vibrations
Prior art date
Application number
RU2013120155/28A
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Russian (ru)
Other versions
RU2579639C2 (en
Inventor
Андрей Николаевич Морозов
Андрей Леонидович Назолин
Виктор Иванович Поляков
Original Assignee
Андрей Николаевич Морозов
Андрей Леонидович Назолин
Виктор Иванович Поляков
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Application filed by Андрей Николаевич Морозов, Андрей Леонидович Назолин, Виктор Иванович Поляков filed Critical Андрей Николаевич Морозов
Priority to RU2013120155/28A priority Critical patent/RU2579639C2/en
Publication of RU2013120155A publication Critical patent/RU2013120155A/en
Application granted granted Critical
Publication of RU2579639C2 publication Critical patent/RU2579639C2/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00—Investigating materials by mechanical methods
    • G01N19/08—Detecting presence of flaws or irregularities

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

Способ обнаружения усталостного повреждения вала турбоагрегата, в котором на работающем турбоагрегате измеряют частоту крутильных колебаний вала и судят об уровне усталостных повреждений вала по изменению частоты крутильных колебаний, отличающийся тем, что измеряют параметры режима работы турбоагрегата, определяют эталонную зависимость частоты крутильных колебаний вала от параметров режима работы турбоагрегата и судят о появлении усталостного повреждения вала и уровне повреждений по отклонению измеряемого значения частоты крутильных колебаний вала от эталонной зависимости.A method for detecting fatigue damage to the shaft of a turbine unit, in which the frequency of torsional vibrations of the shaft is measured on a running turbine unit and judge the level of fatigue damage to the shaft by changing the frequency of torsional vibrations, characterized in that the parameters of the mode of operation of the turbine unit are measured, a reference dependence of the frequency of torsional vibrations of the shaft on the mode parameters is determined the operation of the turbine unit and judge the appearance of fatigue damage to the shaft and the level of damage by the deviation of the measured value of the frequency of twist nyh oscillation shaft depending from the reference.

Claims (1)

Способ обнаружения усталостного повреждения вала турбоагрегата, в котором на работающем турбоагрегате измеряют частоту крутильных колебаний вала и судят об уровне усталостных повреждений вала по изменению частоты крутильных колебаний, отличающийся тем, что измеряют параметры режима работы турбоагрегата, определяют эталонную зависимость частоты крутильных колебаний вала от параметров режима работы турбоагрегата и судят о появлении усталостного повреждения вала и уровне повреждений по отклонению измеряемого значения частоты крутильных колебаний вала от эталонной зависимости. A method for detecting fatigue damage to the shaft of a turbine unit, in which the frequency of torsional vibrations of the shaft is measured on a running turbine unit and judge the level of fatigue damage to the shaft by changing the frequency of torsional vibrations, characterized in that the parameters of the mode of operation of the turbine unit are measured, a reference dependence of the frequency of torsional vibrations of the shaft on the mode parameters is determined operation of the turbine unit and judge the appearance of fatigue damage to the shaft and the level of damage by the deviation of the measured value of the frequency of twist nyh shaft depending from the reference oscillation.
RU2013120155/28A 2013-05-06 2013-05-06 Method for detection of fatigue damage of shaft of turbine unit RU2579639C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2013120155/28A RU2579639C2 (en) 2013-05-06 2013-05-06 Method for detection of fatigue damage of shaft of turbine unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2013120155/28A RU2579639C2 (en) 2013-05-06 2013-05-06 Method for detection of fatigue damage of shaft of turbine unit

Publications (2)

Publication Number Publication Date
RU2013120155A true RU2013120155A (en) 2014-11-20
RU2579639C2 RU2579639C2 (en) 2016-04-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2013120155/28A RU2579639C2 (en) 2013-05-06 2013-05-06 Method for detection of fatigue damage of shaft of turbine unit

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2702923C1 (en) * 2018-05-21 2019-10-14 Андрей Леонидович Назолин Method of rotor unit shaft damage detection (embodiments)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2028520C1 (en) * 1990-07-23 1995-02-09 Акционерное общество открытого типа "Ленинградский Металлический завод" Method of diagnosis of steam turbine
RU2253177C1 (en) * 2003-12-29 2005-05-27 Аврух Владимир Юрьевич Method and device for diagnosing stressed state of large electrical machine rotor shafts in power units
RU2337348C1 (en) * 2007-06-14 2008-10-27 ФГОУ ВПО "Челябинский государственный агроинженерный университет" Method for determination of fatigue damage of crank shafts

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Publication number Publication date
RU2579639C2 (en) 2016-04-10

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