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Article Dans Une Revue Mathematics of Control, Signals, and Systems Année : 2018

ISS with respect to boundary and in-domain disturbances for a coupled beam-string system

Jun Zheng
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Hugo Lhachemi

Résumé

This paper addresses the robust stability of a boundary controlled system coupling two partial differential equations (PDEs), namely beam and string equations, in the presence of boundary and in-domain disturbances under the framework of input-to-state stability (ISS) theory. Well-posedness assessment is first carried out to determine the regularity of the disturbances required for guaranteeing the unique existence of the solution to the considered problem. Then, the method of Lyapunov functionals is applied in stability analysis, which results in the establishment of some ISS properties with respect to disturbances. As the analysis is based on the a priori estimates of the solution to the PDEs, it allows avoiding the invocation of unbounded operators while obtaining the ISS gains in their original expression without involving the derivatives of boundary disturbances.

Dates et versions

hal-03133667 , version 1 (06-02-2021)

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Jun Zheng, Hugo Lhachemi, Guchuan Zhu, David Saussié. ISS with respect to boundary and in-domain disturbances for a coupled beam-string system. Mathematics of Control, Signals, and Systems, 2018, 30 (4), ⟨10.1007/s00498-018-0228-y⟩. ⟨hal-03133667⟩
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