نتایج جستجو برای: switching nonlinear systems

تعداد نتایج: 1414956  

Journal: :IEEE Transactions on Automatic Control 2022

For a multiple-input–multiple-output (MIMO) nonlinear feedback system, the robustness against uncertain time-variation (slow or infrequently large) in loop is investigated an input–output framework. A couple of sufficient conditions terms bounds on average rates for system to be stable are derived. The provide useful tool designing adaptive controllers systems large time-variation.

This paper proposes a switching adaptive control for trajectory tracking of unmanned aircraft systems. The switching adaptive control method is designed to overcome the wind disturbance and achieve a proper tracking performance for control systems. In the suggested system, the wind disturbance is regarded as a finite set of uncertainties; a controller is designed for each uncertainty, and a per...

Journal: :IEEE Trans. Automat. Contr. 2002
Elias B. Kosmatopoulos Petros A. Ioannou

During the last decade a considerable progress has been made in the design of stabilizing controllers for nonlinear systems with known and unknown constant parameters. New design tools such as adaptive feedback linearization, adaptive backstepping, control Lyapunov functions (CLFs) and robust control Lyapunov functions (RCLFs), nonlinear damping and switching adaptive control have been introduc...

2016
Jian-Qiang Wang Chee-Fai Yung

In this note, based on a control Lyapunov function approach, an integrated design of switching laws and feedback controllers for uncertain switched nonlinear control systems with two modes is discussed. A sufficient condition for the existence of globally asymptotically stabilizing state feedback laws (switching laws  controllers) is derived. Moreover, an explicit rule for constructing switchi...

Journal: :journal of dentistry, tehran university of medical sciences 0
mahasti sahabi assistant professor, department of prosthodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran ; dental research center, research institute of dental sciences of shahid beheshti, university of medical sciences, tehran, iran. mehdi adibrad periodontist, department of periodontology, school of dentistry, isfahan university of medical science, isfahan, iran. fatemeh sadat mirhashemi dental research center, research institute of dental sciences of shahid beheshti, university of medical sciences, tehran, iran ; msc, ph.d student, mechanics of agricultural engineering, ferdowsi university of mashhad, mashhad, iran. sareh habibzadeh assistant professor, department of prosthodontist, tehran university of medical sciences, international campus, dental school, tehran, iran.

the purpose of this study was to determine the influence of platform switching on stress distribution of two different implant systems using three-dimensional (3d) finite element models.six 3d finite element models were created to replicate two different implant systems with peri-implant bone tissue, in which six different implant-abutment configurations were represented: model xive-a: 3.8-mm-d...

2014
J. Lauber

In this paper we consider stabilization of switching nonlinear systems represented by TS models. To develop the conditions we use two different switching Lyapunov functions. For each Lyapunov function a set of conditions is developed. The conditions are formulated as LMIs and relaxed using delays in the controller and the Lyapunov function. The application of the conditions is illustrated on nu...

Journal: :Neurocomputing 2015
Ali Heydari Sivasubramanya N. Balakrishnan

The problem of optimal switching and control of nonlinear switching systems with controlled subsystems is investigated in this study where the mode sequence and the switching times between the modes are unspecified. An approximate dynamic programming based method is developed which provides a feedback solution for unspecified initial conditions and different final times. The convergence of the ...

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