Codimension-Two Grazing Bifurcations in Three-Degree-of-Freedom Impact Oscillator with Symmetrical Constraints

<div>Unfolding diagram near a codimension-two grazing bifurcation point.</div>

Discrete Dynamics in Nature and Society

Figure 8: Codimension-Two Grazing Bifurcations in Three-Degree-of-Freedom Impact Oscillator with Symmetrical Constraints 