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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

  • 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/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

  • 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