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Article Dans Une Revue IEEE Transactions on Automatic Control Année : 2016

Wave Equation With Cone-Bounded Control Laws

Résumé

This paper deals with a wave equation with a one-dimensional space variable, which describes the dynamics of string deflection. Two kinds of control are considered: a distributed action and a boundary control. It is supposed that the control signal is subject to a cone-bounded nonlinearity. This kind of feedback laws includes (but is not restricted to) saturating inputs. By closing the loop with such a nonlinear control, it is thus obtained a nonlinear partial differential equation, which is the generalization of the classical 1D wave equation. The well-posedness is proven by using nonlinear semigroups techniques. Considering a sector condition to tackle the control nonlinearity and assuming that a tuning parameter has a suitable sign, the asymptotic stability of the closed-loop system is proven by Lyapunov techniques. Some numerical simulations illustrate the asymptotic stability of the closed-loop nonlinear partial differential equations.
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Dates et versions

hal-01448483 , version 1 (28-01-2017)

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Christophe Prieur, Sophie Tarbouriech, João M Gomes da Silva. Wave Equation With Cone-Bounded Control Laws. IEEE Transactions on Automatic Control, 2016, 61 (11), pp.3452-3463. ⟨10.1109/TAC.2016.2519759⟩. ⟨hal-01448483⟩
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