In this paper, the classical Van der Pol-Duffing Oscillator is studied.
We provide an approximate solution for this equation using parameter
expansion method. Also, we obtain approximate values for frequency of
the equation. The parameter-expansion method is more efficient than
the perturbation method for this equation because the method is independent
of perturbation parameter assumption.
کلید واژگان :
Parameter-expansion method; classical Van der Pol-Duffing Oscillator
