Usage of shaft vibration signals for turbine blades monitoring
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F19%3A43956456" target="_blank" >RIV/49777513:23520/19:43956456 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1784/cm.2019.128" target="_blank" >http://dx.doi.org/10.1784/cm.2019.128</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1784/cm.2019.128" target="_blank" >10.1784/cm.2019.128</a>
Alternative languages
Result language
angličtina
Original language name
Usage of shaft vibration signals for turbine blades monitoring
Original language description
Electricity production is increasingly influenced by renewable energy sources. It raises demands for increased flexibility of conventional coal-fired power stations. Turbine operation under other than designed operational conditions may lead to increased vibrations of rotating blades, mainly of last stage blades (L0) of low pressure turbines (LP). Excessive, unmonitored, blades vibration may lead to origination of cracks and, in the worst cases, to blades rupture. Safety, reliability and efficiency of turbines is conditioned by online monitoring of blades vibration, but online monitoring systems are still not standardized in LP turbines. The previous research showed that relative shaft vibration signals contain components related to blade vibration modes, but except 0ND (nodal diameter) bladed disc modes. However, the latest results confirmed possibility of monitoring 0ND modes by addition of relative shaft axial shift signals into the measurement chain. The results of detailed comparison of blades vibration analyzed by BTT system and signal processing of shaft vibrations and axial shift are described in this paper.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20205 - Automation and control systems
Result continuities
Project
<a href="/en/project/EF17_048%2F0007267" target="_blank" >EF17_048/0007267: Research and Development of Intelligent Components of Advanced Technologies for the Pilsen Metropolitan Area (InteCom)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
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 CM 2019
ISBN
978-1-5108-8977-4
ISSN
2632-637X
e-ISSN
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Number of pages
9
Pages from-to
1-9
Publisher name
The British Institute of NDT
Place of publication
Northampton
Event location
Glasgow, UK
Event date
Jun 25, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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