The motion of the spherical pendulum subjected to a D n symmetric perturbation

Pascal Chossat, Nawaf Bou-Rabee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The motion of a spherical pendulum is characterized by the fact that all trajectories are relative periodic orbits with respect to its circle group of symmetry (invariance by rotations around the vertical axis). When the rotational symmetry is broken by some mechanical effect, more complicated, possibly chaotic behavior is expected. When, in particular, the symmetry reduces to the dihedral group D n of symmetries of a regular n-gon, n > 2, the motion itself undergoes dramatic changes even when the amplitude of oscillations is small, which we intend to explain in this paper. Numerical simulations confirm the validity of the theory and show evidence of new interesting effects when the amplitude of the oscillations is larger (symmetric chaos).

Original languageEnglish (US)
Pages (from-to)1140-1158
Number of pages19
JournalSIAM Journal on Applied Dynamical Systems
Volume4
Issue number4
DOIs
StatePublished - Dec 1 2005
Externally publishedYes

Fingerprint

Pendulum
Pendulums
Invariance
Chaos theory
Orbits
Trajectories
Perturbation
Symmetry
Motion
Computer simulation
Oscillation
n-gon
Dihedral group
Rotational symmetry
Chaotic Behavior
Periodic Orbits
Chaos
Circle
Vertical
Trajectory

All Science Journal Classification (ASJC) codes

  • Analysis
  • Modeling and Simulation

Cite this

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The motion of the spherical pendulum subjected to a D n symmetric perturbation. / Chossat, Pascal; Bou-Rabee, Nawaf.

In: SIAM Journal on Applied Dynamical Systems, Vol. 4, No. 4, 01.12.2005, p. 1140-1158.

Research output: Contribution to journalArticle

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