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Characterization of grazing bifurcation in airfoils with control surface freeplay nonlinearity
(2014-01-01)
A variety of nonlinear features is obtained from aeroelastic systems with discontinuous nonlinearity motivates investigations that may support future applications in controls design, flutter prediction problems, and energy ...
Power systen stabilizer: A nonlinear approach
(1993-01-01)
This paper proposes the consideration of the system nonlinearities in an approach to the Power System Stabilizer problem. An order reduction is proposed and a Lyapunov Function is derived for the reduced system. Conditions ...
Switched control design with guaranteed cost for uncertain nonlinear systems subject to actuator saturation
(2020-01-01)
This manuscript proposes a robust switched controller design with minimization of an upper bound of a quadratic performance index (guaranteed cost) related to the system output for a class of uncertain nonlinear systems ...
On nonlinear dynamics and control of a robotic arm with chaos
(E D P Sciences, 2014-01-01)
In this paper a robotic arm is modelled by a double pendulum excited in its base by a DC motor of limited power via crank mechanism and elastic connector. In the mathematical model, a chaotic motion was identified, for a ...
On relaxed LMI-based design for fuzzy controllers
(IEEE, 2001-01-01)
Relaxed conditions for stability of nonlinear continuous-time systems given by fuzzy models axe presented. A theoretical analysis shows that the proposed method provides better or at least the same results of the methods ...
On relaxed LMI-based design for fuzzy controllers
(2001-12-01)
Relaxed conditions for stability of nonlinear continuous-time systems given by fuzzy models are presented. A theoretical analysis shows that the proposed method provides better or at least the same results of the methods ...
Variable structure and sliding modes nonlinear control system applied to a fiber optic interferometer
(Spie-int Soc Optical Engineering, 2017-01-01)
In this work, we present the application of a nonlinear control system, based on variable structure control and sliding modes, to a fiber optic Mach-Zehnder interferometer. We showed that this control system is able to ...
A contribution for nonlinear structural dynamics characterization of cantilever beams
(2005-12-01)
Successful experiments in nonlinear vibrations have been carried out with cantilever beams under harmonic base excitation. A flexible slender cantilever has been chosen as a convenient structure to exhibit modal interactions, ...
On Nonlinear Dynamics and Control of A Particular Portal Frame Foundation Model, Excited by a Non-Ideal Motor
(2003-12-08)
The nonlinear dynamic response and a nonlinear control method of a particular portal frame foundation for an unbalanced rotating machine with limited power (non-ideal motor) are examined. Numerical simulations are performed ...
A maximum principle for infinite time asymptotically stable impulsive dynamic control systems
(2010-12-01)
We consider an infinite horizon optimal impulsive control problems for which a given cost function is minimized by choosing control strategies driving the state to a point in a given closed set C ∞. We present necessary ...