Structure in the bifurcation diagram of the Duffing oscillator
- 1 February 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 51 (2), 935-956
- https://doi.org/10.1103/physreve.51.935
Abstract
We identify four levels of structure in the bifurcation diagram of the two-well periodically driven Duffing oscillator, plotted as a function of increasing control parameter T, the period of the driving term. The superstructure, or bifurcation peninsula, repeats periodically as T increases by ∼2π, beginning and ending with symmetric period-one orbits whose local torsions differ by 2. Within each bifurcation peninsula there is a systematic window structure. The primary window structure is due to Newhouse and Newhouse-like orbits. Fine structure is due to a Farey sequence of well-ordered orbits between the primary windows. Hyperfine structure consists of very narrow windows associated with non-well-ordered orbits. We construct a template for the Duffing oscillator, a two-dimensional return map, and a one-dimensional return map which describes the systematics of orbit creation and annihilation. All structures are identified by topological indices. Our predictions are based on, and compatible with, numerical computations.Keywords
This publication has 41 references indexed in Scilit:
- Bifurcation structure of a laser with pump modulationJournal of the Optical Society of America B, 1988
- Bifurcation structure of the Toda oscillatorPhysical Review A, 1988
- $2\pi $ Periodic Solutions of Duffing’s Equation with Negative StiffnessSIAM Journal on Applied Mathematics, 1987
- The fractal dimension of the two-well potential strange attractorPhysica D: Nonlinear Phenomena, 1985
- Superstructure in the bifurcation set of the Duffing equation+ d
x ̇ + x + x3 = fcos (ωt)
Physics Letters A, 1985
IEEE Transactions on Circuits and Systems, 1984
Physical Review A, 1983
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1979
Journal of Statistical Physics, 1979
Duke Mathematical Journal, 1957