A. Farshidianfar

[ 1 ] - Some New Analytical Techniques for Duffing Oscillator with Very Strong Nonlinearity

The current paper focuses on some analytical techniques to solve the non-linear Duffing oscillator with large nonlinearity. Four different methods have been applied for solution of the equation of motion; the variational iteration method, He’s parameter expanding method, parameterized perturbation method, and the homotopy perturbation method. The results reveal that approxim...