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

Kód výsledku v 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>

Výsledek na webu

<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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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20205 - Automation and control systems

Projekt

<a href="/cs/project/LO1506" target="_blank" >LO1506: Podpora udržitelnosti centra NTIS - Nové technologie pro informační společnost</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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

Počet stran výsledku

11

Strana od-do

1-11

Název nakladatele

The British Institute for Non-Destructive Testing

Místo vydání

Northampton

Místo konání akce

Novotel Paris Sud Charenton, Paříž, Francie

Datum konání akce

10. 10. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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