SU1280367A1 - Method of checking condition of rotor bearing in service - Google Patents

Method of checking condition of rotor bearing in service Download PDF

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Publication number
SU1280367A1
SU1280367A1 SU833669855A SU3669855A SU1280367A1 SU 1280367 A1 SU1280367 A1 SU 1280367A1 SU 833669855 A SU833669855 A SU 833669855A SU 3669855 A SU3669855 A SU 3669855A SU 1280367 A1 SU1280367 A1 SU 1280367A1
Authority
SU
USSR - Soviet Union
Prior art keywords
amplitude
change
phase
rotor
supports
Prior art date
Application number
SU833669855A
Other languages
Russian (ru)
Inventor
Виктор Александрович Олейников
Валерий Александрович Медников
Анри Анатольевич Ермаков
Original Assignee
Предприятие П/Я Р-6977
Куйбышевский авиационный институт им.акад.С.П.Королева
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Application filed by Предприятие П/Я Р-6977, Куйбышевский авиационный институт им.акад.С.П.Королева filed Critical Предприятие П/Я Р-6977
Priority to SU833669855A priority Critical patent/SU1280367A1/en
Application granted granted Critical
Publication of SU1280367A1 publication Critical patent/SU1280367A1/en

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Abstract

Изобретение относитс  к вйброизмерительной технике и может быть использрвано дл  диагностики состо ни  опор турбомашин в процессе эксплуатации . Целью изобретени   вл етс  повышение точности при вы влении дефектов , св занных с изменением зазоров в опорах. Указанна  цель достигаетс  тем, что измер ют величину и скорость изменени  амплитуды и фазы роторной гармоники от оборота к обороту При повышенном износе подшипников опор возникает прецесси  ротора, котора  приводит к изменению амплитуды и фазы роторной гармоники.The invention relates to a vibration measuring technique and can be used to diagnose the state of turbomachine supports during operation. The aim of the invention is to improve the accuracy in detecting defects associated with changes in the gaps in the supports. This goal is achieved by measuring the magnitude and rate of change of the amplitude and phase of the rotary harmonic from revolution to revolution With increased bearing wear on the bearings, a precession of the rotor occurs, which leads to a change in the amplitude and phase of the rotary harmonic.

Description

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Claims (1)

Изобретение относитс  к виброизме рительной технике и может быть испол зовано дл  диагностики состо ни  опор турбомашин в процессе эксплуата ции, Цель изобретени  - повышение точности при вы влении дефектов, св зан ных с изменением зазоров в опорах, путем контрол  посто нной составл ющей амплитуды ифазы .вибрации на час тоте роторной гармоники. Способ заключаетс  в следующем, При повышенном износе подшипников опор возникает прецесси  ротора, котора  приводит к изменению амплитуды и фазы роторной гармоники от оборота к обороту. По величине и скорости изменени  указанных параметров суд т о наличии дефектов, св занных с изменением зазоров в опорах. Формула изобретени  Способ контрол  состо ни  опор роторов в процессе зксплуатации, заключаюпшйс  в том, что многократно измер ют амплитуду и фазу роторной гармоники, отличающийс  тем, что, с целью повышени  точности при вы влении дефектов, св занных с изменением зазоров в опорах роторов, определ ют изменение амплитуды и фазы роторной гармоники дл  соседних оборотов и по величине и скорости изменени  амплитуды и фазы определ for наличие дефектов.The invention relates to vibration measuring technology and can be used to diagnose the state of turbomachine supports during operation. The purpose of the invention is to improve the accuracy in detecting defects associated with changes in the gaps in the supports by monitoring the constant component of the phase and amplitude. vibrations per hour tote rotary harmonics. The method is as follows. With increased bearing wear on the bearings, a rotor precession occurs, which leads to a change in the amplitude and phase of the rotor harmonic from revolution to rotation. In terms of the magnitude and rate of change of these parameters, it is judged that there are defects associated with a change in the gaps in the supports. Claims The method of monitoring the state of the bearings of the rotors in the process of operation, lies in the fact that the amplitude and phase of the rotor harmonics are measured several times, characterized in that, in order to improve the accuracy in detecting defects associated with changes in the gaps in the rotor bearings The change in the amplitude and phase of the rotor harmonic for neighboring turns and the magnitude and rate of change in the amplitude and phase determined for the presence of defects.
SU833669855A 1983-12-12 1983-12-12 Method of checking condition of rotor bearing in service SU1280367A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU833669855A SU1280367A1 (en) 1983-12-12 1983-12-12 Method of checking condition of rotor bearing in service

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU833669855A SU1280367A1 (en) 1983-12-12 1983-12-12 Method of checking condition of rotor bearing in service

Publications (1)

Publication Number Publication Date
SU1280367A1 true SU1280367A1 (en) 1986-12-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU833669855A SU1280367A1 (en) 1983-12-12 1983-12-12 Method of checking condition of rotor bearing in service

Country Status (1)

Country Link
SU (1) SU1280367A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 901876, кл. G 01 М 15/00, 1980. *

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