Effect of 1:3 resonance on the steady-state dynamics of a forced strongly nonlinear oscillator with a linear light attachment

Mehmet Kurt, Ilya Slavkin, Melih Eriten, D. Michael McFarland, Oleg V. Gendelman, Lawrence Bergman, Alexander F Vakakis

Research output: Contribution to journalArticle

Abstract

We study the 1:3 resonant dynamics of a two degree-of-freedom (DOF) dissipative forced strongly nonlinear system by first examining the periodic steady-state solutions of the underlying Hamiltonian system and then the forced and damped configuration. Specifically, we analyze the steady periodic responses of the two DOF system consisting of a grounded strongly nonlinear oscillator with harmonic excitation coupled to a light linear attachment under condition of 1:3 resonance. This system is particularly interesting since it possesses two basic linearized eigenfrequencies in the ratio 3:1, which, under condition of resonance, causes the localization of the fundamental and third-harmonic components of the responses of the grounded nonlinear oscillator and the light linear attachment, respectively. We examine in detail the topological structure of the periodic responses in the frequency-energy domain by computing forced frequency-energy plots (FEPs) in order to deduce the effects of the 1:3 resonance. We perform complexification/averaging analysis and develop analytical approximations for strongly nonlinear steady-state responses, which agree well with direct numerical simulations. In addition, we investigate the effect of the forcing on the 1:3 resonance phenomena and conclude our study with the stability analysis of the steady-state solutions around 1:3 internal resonance, and a discussion of the practical applications of our findings in the area of nonlinear targeted energy transfer.

Original languageEnglish (US)
Pages (from-to)1189-1203
Number of pages15
JournalArchive of Applied Mechanics
Volume84
Issue number8
DOIs
StatePublished - Aug 2014

Keywords

  • 1:3 resonance
  • Frequency-energy plots
  • Nonlinear steady-state solutions
  • Nonlinear targeted energy transfer

ASJC Scopus subject areas

  • Mechanical Engineering

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