Nonlinear Dynamics of a Periodically Driven Duffing Resonator Coupled to a Van der Pol Oscillator

Figure 6

Bifurcation diagram showing the coordinate 𝑥₁ and 𝑥₂ of the Poincaré section versus the driving frequency in the range of 1.2→1.45 with parameters of 𝑐₁=𝑐₂=0.01, 𝑘₃=1, 𝑘_𝑐=5, and 𝑓_𝑑=4.5.

(a)

(b)