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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

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • 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

  • 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