fig6
From: Uncovering isolated resonant responses in antagonistic pure-shear dielectric elastomer actuators

Figure 6. Basins of attraction for a parametrically forced DEA system with (A) ADR = 0.6, ωe = 3.7 and (B) ADR = 1.0, ωe = 3.6. The black, white, and red regions represent the stable periodic solutions with the 1:1 harmonic, 1:2 subharmonic, and 1:3 subharmonic responses, respectively.