Article ID Journal Published Year Pages File Type
471892 Computers & Mathematics with Applications 2009 24 Pages PDF
Abstract

In this paper, nonlinear oscillators under mixed quadratic and cubic nonlinearities with stochastic inputs are considered. Different methods are used to obtain second order approximations, namely; the Wiener–Hermite and perturbation (WHEP) technique and the homotopy perturbation method (HPM). Some statistical moments are computed for the different methods using mathematica 5. Comparisons are illustrated through figures for different case-studies.

Related Topics
Physical Sciences and Engineering Computer Science Computer Science (General)
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