Abstract and Applied Analysis / 2014 / Article / Fig 2

Research Article

Application of Extended Homotopy Analysis Method to the Two-Degree-of-Freedom Coupled van der Pol-Duffing Oscillator

Figure 2

Comparison between the phase curves of the fifth-order approximation and the numerical integration out-of-phase solution.
729184.fig.002a
(a)
729184.fig.002b
(b)