Results 11 to 20 of about 226,681 (319)
A Case Study of Combined Application of Smart Materials in a Thermal Energy Harvester with Vibrating Action [PDF]
Journal of Applied and Computational Mechanics, 2021 This paper demonstrates a case study of a combined application of smart materials in a thermal energy harvester with vibrating action. The conceptual design of the harvester is based on a Shape Memory Alloy wire attached to the free end of a ...
Rosen Mitrev +4 more
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Funnel control of nonlinear systems [PDF]
Mathematics of Control, Signals, and Systems, 2021 AbstractTracking of reference signals is addressed in the context of a class of nonlinear controlled systems modelled byr-th-order functional differential equations, encompassinginter aliasystems with unknown “control direction” and dead-zone input effects.
Thomas Berger 0004 +2 more
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Mathematics, 2022 The problem of constructing functional optimal observers (filters) for stochastic control systems with additive noises in discrete time are studied in this work.
Mikhail Kamenshchikov
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A New Fractional-Order Map with Infinite Number of Equilibria and Its Encryption Application
Complexity, 2022 The study of the chaotic dynamics in fractional-order discrete-time systems has received great attention over the last years. Some efforts have been also devoted to analyze fractional maps with special features.
Ahlem Gasri +6 more
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Methods of Ensuring Invariance with Respect to External Disturbances: Overview and New Advances
Mathematics, 2021 In this paper, we carry out a demonstration and comparative analysis of known methods of the synthesis of various control laws ensuring the invariance of the output (controlled) variable with respect to external disturbances under various assumptions ...
Aleksey Antipov +2 more
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IET Control Theory & Applications, 2023 This paper studies the tracking control problem for a climate chamber control system used for determining volatile organic compounds. A new nonlinear controller, for the first time, is designed for the temperature and humidity control of a 30m3$30 ext{ m}
Yajing Zhao +6 more
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Adaptive Output-Feedback Control for Switched Nonlinear Systems with Unknown Control Directions [PDF]
AUT Journal of Electrical Engineering, 2023 This article deals with the design of an adaptive controller for switched non-strict feedback nonlinear systems. In the studied system, the switching signal is arbitrary, the states are not measurable, and the signs of the control gain functions that ...
Elham Ovaysi, Marzieh Kamali
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Technologies, 2021 In this paper, a chaotic three dimansional dynamical system is proposed, that is a modification of the system in Volos et al. (2017). The new system has two hyperbolic sine nonlinear terms, as opposed to the original system that only included one, in ...
Christos K. Volos +5 more
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Controlled invariance for nonlinear systems [PDF]
IEEE Transactions on Automatic Control, 1982 Necessary and sufficient conditions are derived for "(A, B)-invariance," called here controlled invariance, for nonlinear systems x˙ = f(x, u). The obtained results generalize and elucidate already known results about systems x˙ = A(x)-Σmi=1 uiBi(x). A new and direct differential geometric interpretation of the concept of controlled invariance and the ...
Nijmeijer, Henk, Schaft, Arjan van der
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Prespecifiable fixed‐time control for uncertain nonlinear system with input quantization
IET Control Theory & Applications, 2023 This paper focuses on the global prespecifiable fixed‐time control problem of uncertain strict‐feedback nonlinear system with input quantization. In contrast to the existing fixed‐time control results, the signs of the control gains can be unknown in our
Yang Gao +4 more
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