Isolated response curves in a base-excited, two-degree-of-freedom, nonlinear system

TitleIsolated response curves in a base-excited, two-degree-of-freedom, nonlinear system
Publication TypeConference Paper
Year of Publication2015
AuthorsJP Noël, T Detroux, L Masset, G Kerschen, and LN Virgin
Conference NameProceedings of the ASME Design Engineering Technical Conference
Date Published01/2015
Abstract

© Copyright 2015 by ASME.In the present paper, isolated response curves in a nonlinear system consisting of two masses sliding on a horizontal guide are examined. 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. Numerical simulations are carried out to study the conditions of existence of isolated solutions, their bifurcations, their merging with the main response branch and their basins of attraction. This is achieved using tools including nonlinear normal modes, energy balance, harmonic balance-based continuation and bifurcation tracking, and global analysis.

DOI10.1115/DETC2015-46106