Optimal Control of LCOs in Aero-Structural Systems
نویسندگان
چکیده
Aero-elastic systems, by their very nonlinear nature, frequently encounter Limit Cycle Oscillations (LCOs). An LCO occurs when the system being described reaches a periodic steady state where there is a constant exchange of energy between the various degrees of freedom, in this case: the Aero and Structural components. These LCOs might be benevolent at times, but are not so in most cases. In this paper we study Active and Passive Control Strategies for LCOs and explore the possibility of harnessing the nonlinearities to our benefit. After defining a control approach based on Optimal Control Theory, we study the specific case of a nonlinear panel interacting with a supersonic flow and undergoing LCOs, and tailor the system parameters to achieve the desired control objectives.
منابع مشابه
Optimal Control of LCOs in Aero-Structural Systems Having your (nonlinear) cake and eating it too
Aero-elastic systems, by their very nonlinear nature, frequently encounter Limit Cycle Oscillations (LCOs). An LCO occurs when the system being described reaches a periodic steady state where there is a constant exchange of energy between the various degrees of freedom, in this case: the Aero and Structural components. These LCOs might be benevolent at times, but are not so in most cases. In th...
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