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1-D MATHEMATICAL MODEL OF HIGH-FREQUENCY PULSATIONS

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F08%3APU76621" target="_blank" >RIV/00216305:26210/08:PU76621 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    1-D MATHEMATICAL MODEL OF HIGH-FREQUENCY PULSATIONS

  • Original language description

    . Paper is foccused on mathematical modeling of high frequency pulsations in pump turbines, which are the source of high-cycle continuous stress of the spiral casing cover, wicket gates and runner. The problem is solved by transfer matrix method. F-A char. and MS Excel programs have been used for data processing. Final results are presented by graphs of frequency-amplitude characteristic depending on running speed of motor, and plots of the pressure mode shape in selected phase shifts. Modeled variantsare those of runners with 7; 9 blades and 7 blades and 7 splitter blades. The number of wicket gates is 20.

  • Czech name

    1-D Matematický model vysokofrekvenčních pulsací

  • Czech description

    Vysokofrekvenční pulsace způsobují cyklické namáhání oběžného kola víka spirály. Tento problém je řešen pomocí přenosových matic, v programu F-Achar,MS Excel. Výsledky jednotlivých variant počtu lopat oběžného kola (7; 9; 7 a 7) jsou ve formě grafů frekvenčně amplitudových charakteristik a tvarů tlaku.

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    BK - Liquid mechanics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA101%2F06%2F0152" target="_blank" >GA101/06/0152: Unsteady Motion of a Body in a Liquid with Large Deformation of Boundaries</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Sborník Mechanical Engineering 2008

  • ISBN

    978-80-227-2987-1

  • ISSN

  • e-ISSN

  • Number of pages

    2

  • Pages from-to

  • Publisher name

    STU Bratislava

  • Place of publication

    Bratislava

  • Event location

    Slovenská technická universita v Bratislavě

  • Event date

    Nov 13, 2008

  • Type of event by nationality

    EUR - Evropská akce

  • UT code for WoS article