Different routes to chaos via strange nonchaotic attractor in a quasiperiodically forced system

Abstract

This paper focusses attention on the strange nonchaotic attractors (SNA) of a quasiperiodically forced dynamical system. Several routes, including the standard ones by which the appearance of strange nonchaotic attractors takes place, are shown to be realizable in the same model over a two parameters ($f-\epsilon$) domain of the system. In particular, the transition through torus doubling to chaos via SNA, torus breaking to chaos via SNA and period doubling bifurcations of fractal torus are demonstrated with the aid of the two parameter ($f-\epsilon$) phase diagram. More interestingly, in order to approach the strange nonchaotic attractor, the existence of several new bifurcations on the torus corresponding to the novel phenomenon of torus bubbling are described. Particularly, we point out the new routes to chaos, namely, (1) two frequency quasiperiodicity $\to$ torus doubling $\to$ torus merging followed by the gradual fractalization of torus to chaos, (2) two frequency quasiperiodicity $\to$ torus doubling $\to$ wrinkling $\to$ SNA $\to$ chaos $\to$ SNA $\to$ wrinkling $\to$ inverse torus doubling $\to$ torus $\to$ torus bubbles followed by the onset of torus breaking to chaos via SNA or followed by the onset of torus doubling route to chaos via SNA. The existence of the strange nonchaotic attractor is confirmed by calculating several characterizing quantities such as Lyapunov exponents, winding numbers, power spectral measures and dimensions. The mechanism behind the various bifurcations are also briefly discussed.

12 pages, 12 figures, ReVTeX (to appear in Phys. Rev. E)

References in corpus (1)

• Fractalization of Torus Revisited as a Strange Nonchaotic Attractor

Cited by in corpus (11)

• Strange Nonchaotic Attractors
• Intermittency transitions to strange nonchaotic attractors in a quasiperiodically driven Duffing oscillator
• Applicability of 0-1 Test for Strange Nonchaotic Attractors
• Experimental realization of strange nonchaotic attractors in a quasiperiodically forced electronic circuit
• Interruption of torus doubling bifurcation and genesis of strange nonchaotic attractors in a quasiperiodically forced map : Mechanisms and their characterizations
• Bubbling route to strange nonchaotic attractor in a nonlinear series LCR circuit with a nonsinusoidal force
• Emergence and mitigation of extreme events in a parametrically driven system with velocity-dependent potential
• Rich dynamics and anticontrol of extinction in a prey-predator system
• Symmetrical emergence of extreme events at multiple regions in a damped and driven velocity-dependent mechanical system
• Suppression of extreme events and chaos in a velocity-dependent potential system with time-delay feedback
• Transition of the thermal boundary layer and plume over an isothermal section-triangular roof: An experimental study