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31 December 2010

8 Pages

Variational Iteration Method for Conservative Oscillators with Complicated Nonlinearities

,
and
1
State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong University, Shanghai 200240, China
2
Department of Mechanics, Sun Yat-sen University Guangzhou 510275, China
*
Author to whom correspondence should be addressed.
Math. Comput. Appl.2010, 15(5), 802-809;https://doi.org/10.3390/mca15050802
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Abstract

The variational iteration method is employed to solve conservative oscillator containing complicated nonlinearities. In order to expand the nonlinear terms into truncated Fourier series, an approach of undetermined coefficient is proposed. Numerical examples shows the feasibility and efficiency of the variational iteration method as well as the presented technique for Fourier series expansion.

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