*In this paper, the performance of a nonlinear vibration absorber is investigated by using general harmonic balanced method. The analytical solutions of periodic motions for this nonlinear aborber system are obtained. Different values of the nonlinear term are chosen to investigate the effectiveness of the vibration reductions. Stabilities of the periodic motions are determined through the eigenvalue analysis. The Hopf and saddle bifurcations are observed for the strong nonlinearity. Phase trajectories and time history plots are illustrated for both masses at the resonance peaks. The harmonic amplitude spectrums show the harmonic effects on periodic motions, and the corresponding accuracy of approximate analytical solutions.                *


Vibration Suppression of a Harmonically Forced Oscillator Using a Passive Nonlinear Vibration Absorber

Division / Sponsors: 
Design Engineering Division and Computers & Information In Engineering Division


Paper Proceedings: https://asmedigitalcollection.asme.org/IDETC-CIE/IDETC-CIE2020/volume/83907

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