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Flutter running waves in turbine blades cascade

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F17%3A00483553" target="_blank" >RIV/61388998:_____/17:00483553 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Flutter running waves in turbine blades cascade

  • Original language description

    The existence of flutter running waves has been often observed at experimental investigation of turbine blades cascade. The presented paper is an attempt to explain origin and behavior of running flutter waves in the rotating blade cascade excited by steam flow from the stationary bladed disk. One of the possibly reasons for existence of running waves are the running periodic forces from steam wakes due to different numbers of blades of stationary and rotating wheels. On a computational model of turbine disk with 10 blades there are shown properties – velocities, directions and modes – of these forced running waves. Interaction of this kind of forced excitation with aero-elastic self-excitation – flutter – causes origin of flutter running waves. These flutter waves will be analyzed in the paper for several kinds and combinations of aero-elastic self-excitations.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20302 - Applied mechanics

Result continuities

  • Project

    <a href="/en/project/GA16-04546S" target="_blank" >GA16-04546S: Aero-elastic couplings and dynamic behaviour of rotational periodic bodies</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2017

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    Engineering Dynamics and Life Sciences

  • ISBN

    978-83-935312-4-0

  • ISSN

  • e-ISSN

  • Number of pages

    10

  • Pages from-to

    483-492

  • Publisher name

    Department of Automation, Biomechanics and Mechatronics

  • Place of publication

    Lodž

  • Event location

    Lodž

  • Event date

    Dec 11, 2017

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article