This paper presents an investigation on the occurrence of bifurcating nonlinear normal modes with particular attention on their evidence in the forced system response. The study is carried out on a two-degrees of freedom system characterized by piecewise linear restoring forces, by means of a theoretical analysis as well as numerical simulations and experimental tests.
Nonlinear Normal Modes in piecewise linear systems: theory and experiments / Giannini, O; Casini, Paolo; Vestroni, Fabrizio. - (2011). (Intervento presentato al convegno Enoc 2011 - 7th European Nonlinear Dynamics Conference tenutosi a Rome nel 24-29 July 2011) [10.3267/ENOC2011Rome].