Publications [#321797] of Lawrence N. Virgin
- Detroux, T; Noël, JP; Kerschen, G; Virgin, LN, Experimental study of isolated response curves in a two-degree-of-freedom nonlinear system,
Conference Proceedings of the Society for Experimental Mechanics Series, vol. 1
pp. 229-235, Springer International Publishing, ISBN 9783319297385 [doi]
(last updated on 2019/09/20)
© 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.