Modelling of pulse-triggered running waves on a blade cascade

0584520 - ÚT 2024 CZ eng C - Konferenční příspěvek (zahraniční konf.)
Šnábl, Pavel - Pešek, Luděk
Modelling of pulse-triggered running waves on a blade cascade.
Computational mechanics 2023. Proceedings of computational mechanics 2023. Plzeň: University of West Bohemia, 2023 - (Adámek, V.; Jonášová, A.; Plánička, S.), s. 190-193. ISBN 978-80-261-1177-1.
[Computational mechanics 2023 /38./. Srní (CZ), 23.10.2023-25.10.2023]
Institucionální podpora: RVO:61388998
Klíčová slova: pulse-triggered running waves * blade cascade * NACA 0010
Obor OECD: Applied mechanics
https://otik.zcu.cz/handle/11025/54962

An experimental cascade of five NACA 0010 blades with pitch degrees of freedom is excited by a moment pulse to one of the blades. Depending on the flow conditions, such as wind speed and the angle of attack of the wind on the blades, the vibration of the excited blade is transmitted by the wind to the other blades. This can result in a running wave that diminishes over time or in a flutter running wave. A simplified spring-mass-damper model with inter-blade connections and non-linear van der Pol dampers is tuned to match experimentally obtained stability curves and tested to see if it can qualitatively model the response of the cascade to the pulse excitation.

Trvalý link: https://hdl.handle.net/11104/0352509