A new analytical approximation to the Duffing-harmonic oscillator

M. Fesanghary, T. Pirbodaghi, M. Asghari and H. Sojoudi

Chaos, Solitons & Fractals, 2009, vol. 42, issue 1, 571-576

Abstract: In this paper, a novel analytical approximation to the nonlinear Duffing-harmonic oscillator is presented. The variational iteration method (VIM) is used to obtain some accurate analytical results for frequency. The accuracy of the results is excellent in the whole range of oscillation amplitude variations.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:42:y:2009:i:1:p:571-576

DOI: 10.1016/j.chaos.2009.01.024

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