Nonlinear panel flutter at variable transonic flow speed
Abstract eng: We investigate nonlinear self-excited oscillations of elastic plate in transonic flow at unsteady flow conditions: the flow speed is variable in time. By observing unsteady plate behaviour, we detect bifurcations of limit cycle oscillations. In addition to previously known limit cycle types, new bifurcations of limit cycles are discovered. When increasing acceleration of the flow, some of the limit cycles disappear, because they do not have enough time to develop. However, flutter is not fully suppressed even for very high accelerations, though the most destructive higher-mode oscillations are missed.
Publisher:
International Union of Theoretical and Applied Mechanics, 2016
Conference Title:
Conference Title:
24th International Congress of Theoretical and Applied Mechanics
Conference Venue:
Montreal (CA)
Conference Dates:
2016-08-21 / 2016-08-26
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2016-11-15, last modified 2016-11-15
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