A new analytical approximation to the Duffing-harmonic oscillator

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 var...

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Bibliographic Details
Published in:Chaos, solitons and fractals solitons and fractals, 2009-10, Vol.42 (1), p.571-576
Main Authors: Fesanghary, M., Pirbodaghi, T., Asghari, M., Sojoudi, H.
Format: Article
Language:English
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Summary: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.
ISSN:0960-0779
1873-2887
DOI:10.1016/j.chaos.2009.01.024