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Journal Articles Nonlinear Dynamics Year : 2016

A complementarity approach for the computation of periodic oscillations in piecewise linear systems

Abstract

Piecewise linear (PWL) systems can exhibit quite complex behaviours. In this paper, the complementarity framework is used for computing periodic steady-state trajectories belonging to linear time-invariant systems with PWL, possibly set-valued, feedback relations. The computation of the periodic solutions is formulated in terms of a mixed quadratic complementarity problem. Suitable anchor equations are used as problem constraints in order to determine the unknown period and to fix the phase of the steady-state oscillation. The accuracy of the complementarity problem solution is shown through numerical investigations of stable and unstable oscillations exhibited by practical PWL systems: a neural oscillator, a deadzone feedback system, a stick-slip system, a repressilator and a relay feedback system.
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hal-02982668 , version 1 (28-10-2020)
hal-02982668 , version 2 (29-10-2020)

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Valentina Sessa, Luigi Iannelli, Francesco Vasca, Vincent Acary. A complementarity approach for the computation of periodic oscillations in piecewise linear systems. Nonlinear Dynamics, 2016, 85, pp.1255-1273. ⟨10.1007/s11071-016-2758-5⟩. ⟨hal-02982668v2⟩
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