SU1807770A1 - Method for diagnosing interhshaft antifriction bearings of two-shaft turbomachines - Google Patents

Method for diagnosing interhshaft antifriction bearings of two-shaft turbomachines

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Publication number
SU1807770A1
SU1807770A1 SU4824541/27A SU4824541A SU1807770A1 SU 1807770 A1 SU1807770 A1 SU 1807770A1 SU 4824541/27 A SU4824541/27 A SU 4824541/27A SU 4824541 A SU4824541 A SU 4824541A SU 1807770 A1 SU1807770 A1 SU 1807770A1
Authority
SU
USSR - Soviet Union
Prior art keywords
shaft
measured
turbomachines
external frame
shafts
Prior art date
Application number
SU4824541/27A
Other languages
Russian (ru)
Inventor
В.А. Аршинов
В.А. Карасев
С.П. Лаврентьев
В.П. Максимов
А.Я. Родов
В.Е. Яковлев
Original Assignee
Центральный институт авиационного моторостроения им.П.И.Баранова
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 Центральный институт авиационного моторостроения им.П.И.Баранова filed Critical Центральный институт авиационного моторостроения им.П.И.Баранова
Priority to SU4824541/27A priority Critical patent/SU1807770A1/en
Application granted granted Critical
Publication of SU1807770A1 publication Critical patent/SU1807770A1/en

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  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

FIELD: vibroacoustic diagnostics of turbomachines. SUBSTANCE: prior to testing by tapping machine frame, resonance frequency range is determined. One of shafts is turned and secured in position irrespective of relative position of shafts. Other shaft is turned in each angular position of the former shaft until it gains speed at which pre-measured harmonics or repetition frequency of balls coincide with resonance frequency of external frame of turbomachine at point of installation of vibration transducer, then drive is switched off. At start of free rotation, average vibration of external frame is measured. Then, during free rotation up to shaft stop average value of amplitudes, quantity and repetition frequency of pulsed vibration signals from external frame exceeding threshold level are measured. Data obtained are compared with threshold values to see if there is any flaw. Thus bearing defects can be detected during early stage of their appearance in two-shaft turbomachines. EFFECT: improved validity of results of diagnostics. 2 cl, 3 dwg
SU4824541/27A 1990-05-21 1990-05-21 Method for diagnosing interhshaft antifriction bearings of two-shaft turbomachines SU1807770A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4824541/27A SU1807770A1 (en) 1990-05-21 1990-05-21 Method for diagnosing interhshaft antifriction bearings of two-shaft turbomachines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4824541/27A SU1807770A1 (en) 1990-05-21 1990-05-21 Method for diagnosing interhshaft antifriction bearings of two-shaft turbomachines

Publications (1)

Publication Number Publication Date
SU1807770A1 true SU1807770A1 (en) 1996-08-20

Family

ID=60538413

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4824541/27A SU1807770A1 (en) 1990-05-21 1990-05-21 Method for diagnosing interhshaft antifriction bearings of two-shaft turbomachines

Country Status (1)

Country Link
SU (1) SU1807770A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2495395C1 (en) * 2012-04-27 2013-10-10 Федеральное государственное унитарное предприятие "Научно-производственный центр газотурбостроения "Салют" Method of diagnosing twin-shaft gas turbine engine transmission
RU2545250C2 (en) * 2013-06-10 2015-03-27 Владимир Николаевич Иванов Device for diagnostics and control of technical state of mechanisms of transport and stationary systems
RU2552389C1 (en) * 2014-01-29 2015-06-10 Открытое акционерное общество "Уфимское моторостроительное производственное объединение" ОАО "УМПО" Device for diagnostics of gas turbine twin-shaft inter-rotor bearing
CN105651515A (en) * 2016-03-22 2016-06-08 西北工业大学 Fault detection method and device for aircraft engine intermediate bearing
CN106017914A (en) * 2016-05-11 2016-10-12 湖南科技大学 Research and testing platform for vibration noises of helicopter transmission system
CN108225655A (en) * 2017-12-22 2018-06-29 河南科技大学 A kind of dynamical and static pressure gas bearing dynamic gas film pressure test device and test method
CN110243604A (en) * 2019-07-17 2019-09-17 大连工业大学 A kind of intershaft bearing vibration testing device
CN110385798A (en) * 2018-04-19 2019-10-29 株式会社迪思科 Processing unit (plant)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2495395C1 (en) * 2012-04-27 2013-10-10 Федеральное государственное унитарное предприятие "Научно-производственный центр газотурбостроения "Салют" Method of diagnosing twin-shaft gas turbine engine transmission
RU2545250C2 (en) * 2013-06-10 2015-03-27 Владимир Николаевич Иванов Device for diagnostics and control of technical state of mechanisms of transport and stationary systems
RU2552389C1 (en) * 2014-01-29 2015-06-10 Открытое акционерное общество "Уфимское моторостроительное производственное объединение" ОАО "УМПО" Device for diagnostics of gas turbine twin-shaft inter-rotor bearing
CN105651515A (en) * 2016-03-22 2016-06-08 西北工业大学 Fault detection method and device for aircraft engine intermediate bearing
CN105651515B (en) * 2016-03-22 2018-04-20 西北工业大学 Aero-engine intershaft bearing fault detection method and detection device
CN106017914A (en) * 2016-05-11 2016-10-12 湖南科技大学 Research and testing platform for vibration noises of helicopter transmission system
CN106017914B (en) * 2016-05-11 2018-11-16 湖南科技大学 A kind of Helicopter Transmission System Vibration Noise Study test platform
CN108225655A (en) * 2017-12-22 2018-06-29 河南科技大学 A kind of dynamical and static pressure gas bearing dynamic gas film pressure test device and test method
CN110385798A (en) * 2018-04-19 2019-10-29 株式会社迪思科 Processing unit (plant)
CN110243604A (en) * 2019-07-17 2019-09-17 大连工业大学 A kind of intershaft bearing vibration testing device

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