Název: Numerical simulation of dynamic loading of a test blade in forced torsional vibration
Autoři: Šidlof, P. ; Vomáčko, V. ; Lepičovský, Jan ; Šimurda, David ; Štěpán, M. ; Luxa, Martin
Typ dokumentu: Příspěvky z konference
Konference/Akce: DYMAMESI 2021, Cracow - Prague (CZ), 20210302
Rok: 2021
Jazyk: eng
Abstrakt: Within a new project focused on blade flutter research, building on previous experience with the NASA Transonic Flutter Cascade facility, static blade cascade and airfoil flutter experiments realized in cooperation between the Institute of Thermomechanics and Technical University of Liberec, a new test facility is under development for the investigation of high subsonic and transonic flow in a blade cascade under forced torsional oscillation. Apart from aerodynamic loading of the blades, the oscillating blade will be exposed to significant structural stresses due to the highfrequency torsional vibration. In order to avoid structural integrity issues from high-cycle fatigue, a numerical simulation of the stress and displacement of the blade was realized. Regions where equivalent stress reaches maximum values were identified, and elastic deformations were computed. The limits in oscillation amplitude and frequency for the safe operation of the experimental setup were discussed.
Klíčová slova: blade flutter; structural analysis; torsional vibration
Číslo projektu: GA20-11537S (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: Dynamics of Machines and Mechanical Systems with Interactions, DYMAMESI 2021, ISBN 978-80-87012-75-8

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/11104/0321476

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-449077


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference