Time-frequency processing based method for rotor/stator rub localization

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F16%3A43929834" target="_blank" >RIV/49777513:23520/16:43929834 - isvavai.cz</a>
Result on the web
<a href="https://www.scopus.com/record/display.uri?origin=resultslist&eid=2-s2.0-85002838965" target="_blank" >https://www.scopus.com/record/display.uri?origin=resultslist&eid=2-s2.0-85002838965</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Time-frequency processing based method for rotor/stator rub localization
Original language description
Rotor-stator rub is not very common, but hazardous state, which does not allow normal operation of the machine. The main reasons of rub occurrence are high shaft vibrations, tight clearances of the seals and thermal deformation of stator parts. The diagnostics of rub consists of two tasks. The first task is detection of rub, normally based on tracking of 1X phasor in complex domain or detection of 1X integral submultiples in signal spectrum. The second task is determination of the place, where rub occurred. This paper describes a new method of rub localization based on time-frequency processing of stator vibrations. Developed method uses standardly installed vibration sensors without need of any further equipment. The rub localization method was and tested during experiments on rotor stand and then used in operation of steam turbine. The accuracy of proposed method was verified after an inspection during the steam turbine outage.
Czech name
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Czech description
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Project
<a href="/en/project/LO1506" target="_blank" >LO1506: Sustainability support of the centre NTIS - New Technologies for the Information Society</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
The Thirteenth International Conference on Condition Monitoring and Machinery Failure Prevention Technologies CM2016 / MFPT2016
ISBN
978-1-5108-3093-6
ISSN
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e-ISSN
neuvedeno
Number of pages
11
Pages from-to
1-11
Publisher name
The British Institute for Non-Destructive Testing
Place of publication
Northampton
Event location
Novotel Paris Sud Charenton, Paříž, Francie
Event date
Oct 10, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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