An application of he's variational iteration method for solving Duffing-Van Der Pol equation

الملخص EN

In this paper, we apply He's variational iteration method (VIM) and the Adomian decomposition method (ADM) to approximate the solution of Duffing-Van Der Pol equation (DVP).

In VIM, a correction functional is constructed by a general Lagrange multiplier which can be identified via a variational theory.

The VIM yields an approximate solution in the form of a quickly convergent series.

Comparisons of the two series solutions with the classical Runge-Kutta order four RK45 method show that the VIM is a powerful method for the solution of nonlinear equations.

The convergent of He's variational iteration method to this equation is also considered.