Název:
Running flutter waves in blades cascade
Autoři:
Půst, Ladislav ; Pešek, Luděk Typ dokumentu: Příspěvky z konference Konference/Akce: Engineering Mechanics 2017 /23./, Svratka (CZ), 20170515
Rok:
2017
Jazyk:
eng
Abstrakt: The simplified mathematical model of dynamic properties of bladed cascade excited by wakes of flowing steam from the stationary cascade is derived. Interaction of this kind of forced excitation with aero-elastic self-excitation described by Van der Pol formula causes origin of flutter and its. running waves. It is shown that the velocity, direction of flutter running waves and mode of vibration depend on the blades’ number ratio and on kind of self-excitation forces on individual blade or on inter-blade distance.
Klíčová slova:
flutter; ratio of blade numbers; running waves; self-excitation; wakes Číslo projektu: GA16-04546S (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: Engineering Mechanics 2017, ISBN 978-80-214-5497-2, ISSN 1805-8248
Instituce: Ústav termomechaniky AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0273603