A Novel Method for Partial Rub Detection Based on Cumulation of Liftered Full Spectrum

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F14%3A43922072" target="_blank" >RIV/49777513:23520/14:43922072 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A Novel Method for Partial Rub Detection Based on Cumulation of Liftered Full Spectrum

Popis výsledku v původním jazyce

Contemporary trend in design of turbomachinery leads to increase of efficiency through reducing the seal clearances. Tight rotor-to-seal clearance may lead to undesirable contact between rotating and stationary part of the machine, called simply rubbingor rub. The methods, standardly used for rub detection, are mainly based on observation of bending rotor, which is very common symptom of rotor rubbing with a part of stator. One way to detect bending rotor is monitoring of phasor of first harmonics (1X)signal component. Other symptoms of partial rub are subsynchronous spectral components, which arises from rotor periodic motion during rub. In this paper, the method of cumulative full spectrum, based on cepstral liftering and subsequent cumulation of full spectrum is introduced. This method is suitable for offline and also online detection of partial rub.

Název v anglickém jazyce

A Novel Method for Partial Rub Detection Based on Cumulation of Liftered Full Spectrum

Popis výsledku anglicky

Contemporary trend in design of turbomachinery leads to increase of efficiency through reducing the seal clearances. Tight rotor-to-seal clearance may lead to undesirable contact between rotating and stationary part of the machine, called simply rubbingor rub. The methods, standardly used for rub detection, are mainly based on observation of bending rotor, which is very common symptom of rotor rubbing with a part of stator. One way to detect bending rotor is monitoring of phasor of first harmonics (1X)signal component. Other symptoms of partial rub are subsynchronous spectral components, which arises from rotor periodic motion during rub. In this paper, the method of cumulative full spectrum, based on cepstral liftering and subsequent cumulation of full spectrum is introduced. This method is suitable for offline and also online detection of partial rub.

Druh

D - Stať ve sborníku

CEP obor

JE - Nejaderná energetika, spotřeba a užití energie

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

Communications, Circuits and Educational Technologies

ISBN

978-1-61804-231-6

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

72-79

Název nakladatele

Europment

Místo vydání

Sofia, Bulgaria

Místo konání akce

Praha

Datum konání akce

2. 4. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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