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Two models of nonsmooth dynamical systems

Abstract : Two examples of nonsmooth systems are considered. The first one is a two degrees of freedom oscillator in the presence of a stop. A discontinuity appears when the system position reaches a critical value. The second example consists of coupled oscillators excited by dry friction. In this case, the discontinuity occurs when the system's velocities take a critical value. For both examples, the dynamical system can be partitioned into different configurations limited by a set of boundaries. Within each configuration, the dynamical model is linear and the close form solution is known. Periodic orbits, including several transitions between the various configurations of the system, are found in analytical form. The stability of these orbits is investigated by using the Poincaré map modeling.
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Madeleine Pascal. Two models of nonsmooth dynamical systems. International journal of bifurcation and chaos in applied sciences and engineering , World Scientific Publishing, 2011, 21 (10), pp.2853--2860. ⟨10.1142/S0218127411030180⟩. ⟨hal-00653630⟩



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