The use of time-frequency methods in rotor/stator impact-rubbing detection
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F11%3A43898066" target="_blank" >RIV/49777513:23520/11:43898066 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1115/DETC2011-48211" target="_blank" >http://dx.doi.org/10.1115/DETC2011-48211</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1115/DETC2011-48211" target="_blank" >10.1115/DETC2011-48211</a>
Alternative languages
Result language
angličtina
Original language name
The use of time-frequency methods in rotor/stator impact-rubbing detection
Original language description
At present, detailed rubbing diagnostics is implemented as off-line analysis of measured data. During the machine operation, the overall level of vibration and the rotational frequency (1X) phasor are traced. On the basis of amplitude and phase changes,the presence of rub is identified. Although unmonitored, changes in sub synchronous spectral components are also caused by rubbing. The new method presented herein utilizes measurements of these changes for better online rubbing detection. The paper presents the authors work on rotor/stator rub detection in steam turbines. For automatic rubbing detection, an on-line tool, called cumulative fullspectra method and based on full-spectra computation, is proposed. The proposed automatic detection algorithm is based on characteristic value, which is computed using special norming of tracked frequencies in the cumulative full-spectra.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JE - Non-nuclear power engineering, energy consumption and utilization
OECD FORD branch
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Result continuities
Project
<a href="/en/project/FR-TI1%2F196" target="_blank" >FR-TI1/196: Research and development of a diagnostic system for rubbing detection and localization in steam turbines</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2011
ISBN
978-0-7918-5478-5
ISSN
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e-ISSN
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Number of pages
10
Pages from-to
55-64
Publisher name
ASME
Place of publication
Washington
Event location
Washington DC, USA
Event date
Aug 28, 2011
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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