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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

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    JE - Non-nuclear power engineering, energy consumption and utilization

  • OECD FORD branch

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

  • e-ISSN

  • 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