Monitoring and experimental validation of blade vibration forces acting on rotor
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F19%3A43955703" target="_blank" >RIV/49777513:23520/19:43955703 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1784/cm.2019.137" target="_blank" >http://dx.doi.org/10.1784/cm.2019.137</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1784/cm.2019.137" target="_blank" >10.1784/cm.2019.137</a>
Alternative languages
Result language
angličtina
Original language name
Monitoring and experimental validation of blade vibration forces acting on rotor
Original language description
Monitoring of blade vibration is an important part in the maintenance of the rotating machine and its proper operation. The signal analysis of blade vibration plays an important role in detection of the blade structure change. Early detection can avoid unnecessary losses. This is important especially for blades in last stages of low-pressure turbine of turbo-generators. The popular method used for blade vibration monitoring is blade tip timing, which is, unfortunately, not installed standardly yet due to the higher installation costs and needs for adjustment of the stator part. However, when there is no blade vibration monitoring system installed on the turbine, there is a possibility to use an alternative method for blade vibration monitoring based on the analysis of the shaft relative vibration. In this case, the signal is measured by standardly installed instrumentation giving this method a major advantage upon the others. Recently, there was published a few papers describing this approach. However, there is no exact explanation yet how blade vibrations affect the shaft vibration and what is the form of its transmission. Explanation of main principle of rotor excitation by rotating blades, specifically description of forces taking part in the blade-shaft vibrations transfer are described in this paper. Experimental validation using a machinery fault simulator and derived conclusions are presented as well.
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/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)<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
10
Pages from-to
1-10
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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