Adaptive aeroelastic vibration suppression of a supersonic airfoil with flap

Rao, V.M.; Behal, Aman; Marzocca, Pier; Rubillo, Christina

doi:10.1016/j.ast.2006.03.006

Cited by 31 publications

(24 citation statements)

References 17 publications

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“…In Behal et al (2006a), control has been designed for a wing section model with only TECS and working at subsonic flight speed. For the supersonic/hypersonic wing section model, the reader is referred to Rao et al (2006). Later, three control strategies (Behal et al, 2006b;Reddy et al, 2007;Wang et al, 2010) were given for the wing section model with both TECS and LECS at subsonic flight speed.…”

Section: Aeroelastic Governing Equationmentioning

confidence: 99%

“…In this review paper, the latest development on the adaptive control design for subsonic and supersonic aeroelastic wing section model with one and two control surfaces are presented based on authors' previous work (Behal et al, 2006a, b;Rao et al, 2006;Reddy et al, 2007;Wang et al, 2010). In Behal et al (2006a), control has been designed for a wing section model with only TECS and working at subsonic Int'l J. of Aeronautical & Space Sci.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, a novel adaptive control scheme was presented (Behal et al, 2006b;Gujjula et al, 2005;Platanitis and Strganac, 2004;Rao et al, 2006;Reddy et al, 2007), which efficiently improved the performance through an extension to a wing section with two control surfaces. An adaptive fullstate feedback control law was provided in Platanitis and Strganac (2004).…”

Section: Introductionmentioning

confidence: 99%

“…Note that a projection operator was adopted to assure that the input gain matrix estimate remains invertible. The adaptive control design problem for a non-linear 2D wing-flap system in supersonic/hypersonic flight speed was addressed in Rao et al (2006). Instead of using projection introduced in Gujjula et al (2005), an ST decomposition of the input gain matrix was used in Behal et al (2006b) to design a singularity free controller which was applied on both leading (LECS) and trailing edge (TECS) control surfaces but requiring full-state feedback with a filtered tracking error.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Adaptive and Robust Aeroelastic Control of Nonlinear Lifting Surfaces with Single/Multiple Control Surfaces: A Review

Wang¹,

Behal²,

Marzocca³

2010

International Journal of Aeronautical and Space Sciences

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Active aeroelastic control is an emerging technology aimed at providing solutions to structural systems that under the action of aerodynamic loads are prone to instability and catastrophic failures, and to oscillations that can yield structural failure by fatigue. The purpose of the aeroelastic control among others is to alleviate and even suppress the vibrations appearing in the flight vehicle subcritical flight regimes, to expand its flight envelope by increasing the flutter speed, and to enhance the postflutter behavior usually characterized by the presence of limit cycle oscillations. Recently adaptive and robust control strategies have demonstrated their superiority to classical feedback strategies. This review paper discusses the latest development on the topic by the authors. First, the available control techniques with focus on adaptive control schemes are reviewed, then the attention is focused on the advanced single-input and multi-input multi-output adaptive feedback control strategies developed for lifting surfaces operating at subsonic and supersonic flight speeds. A number of concepts involving various adaptive control methodologies, as well as results obtained with such controls are presented. Emphasis is placed on theoretical and numerical results obtained with the various control strategies.

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Section: Aeroelastic Governing Equationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Adaptive and Robust Aeroelastic Control of Nonlinear Lifting Surfaces with Single/Multiple Control Surfaces: A Review

Wang¹,

Behal²,

Marzocca³

2010

International Journal of Aeronautical and Space Sciences

Self Cite

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“…Motivated by our previous work in [19][21] and [23]- [25], a novel neural network (NN) based robust controller has been designed to asymptotically stabilize a supersonic aeroelastic system with unstructured nonlinear uncertainties. The nonlinearity of the model depends on the plunging distance and pitching angle.…”

Section: Introductionmentioning

confidence: 99%

A Continuous Robust Control Strategy for the Active Aeroelastic Vibration Suppression of Supersonic Lifting Surfaces

Zhang

Wang

Behal

et al. 2012

International Journal of Aeronautical and Space Sciences

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The model-free control of aeroelastic vibrations of a non-linear 2-D wing-flap system operating in supersonic flight speed regimes is discussed in this paper. A novel continuous robust controller design yields asymptotically stable vibration suppression in both the pitching and plunging degrees of freedom using the flap deflection as a control input. The controller also ensures that all system states remain bounded at all times during closed-loop operation. A Lyapunov method is used to obtain the global asymptotic stability result. The unsteady aerodynamic load is considered by resourcing to the non-linear Piston Theory Aerodynamics (PTA) modified to account for the effect of the flap deflection. Simulation results demonstrate the performance of the robust control strategy in suppressing dynamic aeroelastic instabilities, such as non-linear flutter and limit cycle oscillations.

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High‐Speed Aeroelastic Nonlinearities

2017

Introduction to Nonlinear Aeroelasticity

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Adaptive aeroelastic vibration suppression of a supersonic airfoil with flap

Cited by 31 publications

References 17 publications

Adaptive and Robust Aeroelastic Control of Nonlinear Lifting Surfaces with Single/Multiple Control Surfaces: A Review

Adaptive and Robust Aeroelastic Control of Nonlinear Lifting Surfaces with Single/Multiple Control Surfaces: A Review

A Continuous Robust Control Strategy for the Active Aeroelastic Vibration Suppression of Supersonic Lifting Surfaces

High‐Speed Aeroelastic Nonlinearities

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