AJCM  Vol.3 No.3 , September 2013
Stochastic Oscillators with Quadratic Nonlinearity Using WHEP and HPM Methods

In this paper, quadratic nonlinear oscillators under stochastic excitation are considered. The Wiener-Hermite expansion with perturbation (WHEP) method and the homotopy perturbation method (HPM) are used and compared. Different approximation orders are considered and statistical moments are computed in the two methods. The two methods show efficiency in estimating the stochastic response of the nonlinear differential equations.

Cite this paper: A. Al-Johani, "Stochastic Oscillators with Quadratic Nonlinearity Using WHEP and HPM Methods," American Journal of Computational Mathematics, Vol. 3 No. 3, 2013, pp. 185-194. doi: 10.4236/ajcm.2013.33027.

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