Uniformly exponential stability of semi-discrete scheme  for a vibration cable with a tip mass under observer-based feedback control

IF 1.3 3区 数学 Q4 AUTOMATION & CONTROL SYSTEMS
B. Guo, Xi Zhao
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引用次数: 0

Abstract

In this paper, we consider uniformly exponential approximation for  a vibrating cable with tip mass under a non-collocated  output stabilizing feedback control. By designing an  observer-based output feedback control, the closed-loop system is composed of the coupled same type of PDEs  and ODEs. By order reduction method, we find a global Lyapunov functional for the closed-loop system. The  closed-loop system  is then semi-discretized by the  finite difference method. For the discrete systems, we also construct the  Lyapunov functions. The uniform exponential stability of the semi-discretized systems is then established analogously as the proof for  the continuous counterpart via an indirect Lyapunov functional approach.
观测器反馈控制下带端部质量振动索半离散格式的均匀指数稳定性
本文研究了在非配置输出稳定反馈控制下具有尖部质量的振动索的均匀指数逼近问题。通过设计基于观测器的输出反馈控制,由同类型偏微分方程和偏微分方程耦合组成闭环系统。通过降阶方法,我们得到了闭环系统的一个全局Lyapunov泛函。然后用有限差分法对闭环系统进行半离散。对于离散系统,我们也构造了李雅普诺夫函数。然后通过间接Lyapunov泛函方法建立了半离散系统的一致指数稳定性,并以此作为连续系统的证明。
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来源期刊
Esaim-Control Optimisation and Calculus of Variations
Esaim-Control Optimisation and Calculus of Variations Mathematics-Computational Mathematics
自引率
7.10%
发文量
77
期刊介绍: ESAIM: COCV strives to publish rapidly and efficiently papers and surveys in the areas of Control, Optimisation and Calculus of Variations. Articles may be theoretical, computational, or both, and they will cover contemporary subjects with impact in forefront technology, biosciences, materials science, computer vision, continuum physics, decision sciences and other allied disciplines. Targeted topics include: in control: modeling, controllability, optimal control, stabilization, control design, hybrid control, robustness analysis, numerical and computational methods for control, stochastic or deterministic, continuous or discrete control systems, finite-dimensional or infinite-dimensional control systems, geometric control, quantum control, game theory; in optimisation: mathematical programming, large scale systems, stochastic optimisation, combinatorial optimisation, shape optimisation, convex or nonsmooth optimisation, inverse problems, interior point methods, duality methods, numerical methods, convergence and complexity, global optimisation, optimisation and dynamical systems, optimal transport, machine learning, image or signal analysis; in calculus of variations: variational methods for differential equations and Hamiltonian systems, variational inequalities; semicontinuity and convergence, existence and regularity of minimizers and critical points of functionals, relaxation; geometric problems and the use and development of geometric measure theory tools; problems involving randomness; viscosity solutions; numerical methods; homogenization, multiscale and singular perturbation problems.
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