Chaotic Motion in Forced Duffing System Subject to Linear and Nonlinear Damping

Figure 8

(a) Top Lyapunov exponents versus time , , , , , . (b) Time history of nonlinear system , , , , , . (c) Phase portrait of nonlinear system , , , , , . (d) Poincare map of nonlinear system , , , , , .

(a)

(b)

(c)

(d)