Název:
Evaluation of aerodynamic damping and natural frequencies from numerical simulations and experiments
Autoři:
Chládek, Štěpán ; Horáček, Jaromír ; Zolotarev, Igor Typ dokumentu: Příspěvky z konference Konference/Akce: DYMAMESI 2016, Prague (CZ), 2016-03-01 / 2016-03-02
Rok:
2016
Jazyk:
eng
Abstrakt: 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.
Klíčová slova:
damping ratio and eigenfrequency estimation; fluid-structure interaction Číslo projektu: GA13-10527S (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: DYMAMESI 2016, ISBN 978-80-87012-60-4
Instituce: Ústav termomechaniky AV ČR
(web)
Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0258706