Bifurcation Analysis of a Van der Pol-Duffing Circuit with Parallel Resistor

Figure 15

Strange attractor created after the existence of the double homoclinic loop shown in Figure 14. Parameter values are 𝜈=10, 𝜇=0.1, 𝛼=2, and 𝛽=𝛽_2𝑐−1.743=10.257. Initial conditions are (0.0001,0,0.0001) and (−0.0001,0,−0.0001). Eigenvalues at 𝐸₀ are 𝜆₁=2.115, 𝜆_2,3=−1.557±1.556𝑖; eigenvalues at 𝐸_± are 𝜆₁=−4.161, 𝜆_2,3=0.080±2.218𝑖.