|Title||Experimental study of isolated response curves in a two-degree-of-freedom nonlinear systemExperimental study of isolated response curves in a two-degree-of-freedom nonlinear system|
|Publication Type||Conference Paper|
|Year of Publication||2016|
|Authors||T Detroux, JP Noël, G Kerschen, LN Virgin, T Detroux, JP Noël, G Kerschen, and LN Virgin|
|Conference Name||Conference Proceedings of the Society for Experimental Mechanics Series|
© The Society for Experimental Mechanics, Inc. 2016.In the present paper, the observation and characterization of isolated response curves (IRCs) are experimentally reported in the case of a nonlinear system consisting of two masses sliding on an horizontal guide. Transverse springs are attached to one mass to provide the nonlinear restoring force, and a harmonic motion of the complete system is imposed by prescribing the displacement of their supports. The existence of an IRC is related to a 3:1 internal resonance between the two modes of the system. The observed IRC is studied in detached and merged conditions using swept-sine excitations and system perturbations.