Original title: Evaluation of aerodynamic damping and natural frequencies from numerical simulations and experiments
Authors: Chládek, Štěpán ; Horáček, Jaromír ; Zolotarev, Igor
Document type: Papers
Conference/Event: DYMAMESI 2016, Prague (CZ), 2016-03-01 / 2016-03-02
Year: 2016
Language: eng
Abstract: The paper describes different ways for aerodynamic damping and natural frequencies evaluation in a problem of fluid-structure interaction. It is useful for both numerical simulations and experimental measurements. The Fourier transform is used for the frequency evaluation and the damping is evaluated both in time and frequency domain. Significant influence of the chosen sampling frequency and the length of time record on the accuracy of the results are demonstrated both in the numerical simulation and in the experiment that was performed with the flexibly supported profile NACA 0012 with two degrees of freedom.
Keywords: damping ratio and eigenfrequency estimation; fluid-structure interaction
Project no.: GA13-10527S (CEP)
Funding provider: GA ČR
Host item entry: DYMAMESI 2016, ISBN 978-80-87012-60-4

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/11104/0258706

Permalink: http://www.nusl.cz/ntk/nusl-203478


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