Original title: Running flutter waves in the model of turbine blades cascade
Authors: Půst, Ladislav ; Pešek, Luděk
Document type: Papers
Conference/Event: DYMAMESI 2018 - Dynamics of Machines and Mechanical Systems with Interactions, Prague (CZ), 20180306
Year: 2018
Language: eng
Abstract: This contribution is connected with the paper on the previous conference, where the origin and properties of forced running waves produced by flowing steam through cascade of stationary and rotating wheels with different numbers of blades in the steam turbine were investigated. Due to the aero-elastic forces of this steam flow, these comparatively small vibrations can excite strong flutter running waves. Presented contribution is oriented on the analysis of dynamic properties of computational model of blades cascade, where the flutter is modelled by two types of Van der Pol self-excitation forces.
Keywords: blades cascade; flutter; number of blades; running waves; self-excitation
Project no.: GA16-04546S (CEP)
Funding provider: GA ČR
Host item entry: DYMAMESI 2018 - Proceedings, ISBN 978-80-87012-66-6

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0286762

Permalink: http://www.nusl.cz/ntk/nusl-386530


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers