Journal ArticleDOI
Time-Delay Effects on Linear/Nonlinear Feedback Control of Simple Aeroelastic Systems
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In this article, the effects of time delay on the linear/nonlinear feedback control of two-dimensional lifting surfaces in an incompressible flowfield is presented. And the stability/instability behavior of nonlinear feedback time-delay closed-loop aeroelastic systems is studied.Abstract:
A study of the effects of time delay on the linear/nonlinear feedback control of two-dimensional lifting surfaces in an incompressible flowfield is presented. Specifically, the case of a one-degree-of-freedom system is considered in detail, and in that context, both the structural and the unsteady aerodynamics models are assumed to be linear. The study of the stability/instability behavior of nonlinear feedback time-delay closed-loop aeroelastic systemsread more
Citations
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Journal ArticleDOI
Advances in the linear/nonlinear control of aeroelastic structural systems
Liviu Librescu,Pier Marzocca +1 more
TL;DR: A number of concepts involving various control methodologies, such as proportional, velocity, linear quadratic regulator, modified bang-bang, sliding mode observer, time-delay control, fuzzy, etc., as well as results obtained with such controls are presented.
Journal ArticleDOI
Aeroelastic dynamic response and control of an airfoil section with control surface nonlinearities
TL;DR: In this article, a state feedback suboptimal control law is derived for aeroelastic response and flutter suppression of a three degree-of-freedom typical airfoil section.
Journal ArticleDOI
Flutter suppression of a high aspect-ratio wing with multiple control surfaces
TL;DR: In this article, an active flutter suppression of a high aspect-ratio wing with multiple control surfaces distributed throughout the span is studied. But the authors focus on a single wing and do not consider the effect of different control surfaces.
Journal ArticleDOI
Designing active flutter suppression for high-dimensional aeroelastic systems involving a control delay
Rui Huang,Haiyan Hu,Yonghui Zhao +2 more
TL;DR: In this article, the effect of input time delay on the stability of a controlled high-dimensional aeroelastic system in an incompressible flow field was revealed and a new optimal control law was proposed to suppress the flutter of the high dimensional annealing system with time delay in the control loop.
References
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Book
Nonlinear Oscillations, Dynamical Systems, and Bifurcations of Vector Fields
TL;DR: In this article, the authors introduce differential equations and dynamical systems, including hyperbolic sets, Sympolic Dynamics, and Strange Attractors, and global bifurcations.
A Reflection on Nonlinear Oscillations, Dynamical Systems, and Bifurcations of Vector Fields
J. Guckenheimer,P. J. Holmes +1 more
TL;DR: In this paper, the authors introduce differential equations and dynamical systems, including hyperbolic sets, Sympolic Dynamics, and Strange Attractors, and global bifurcations.
Journal ArticleDOI
Continuous control of chaos by self-controlling feedback
TL;DR: In this paper, the stabilization of unstable periodic orbits of a chaotic system is achieved either by combined feedback with the use of a specially designed external oscillator, or by delayed self-controlling feedback without using of any external force.
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Advances in the linear/nonlinear control of aeroelastic structural systems
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