Quasi-periodic solutions: analytical and numerical investigations

  • Jan Awrejcewicz Technical University of Łódź

Abstract

First, an analytical asymptotic method to construct quasi-periodic solutions in autonomous dynamical systems governed by a nonlinear second order set of ordinary differential equations with delay is presented. The approach is based on the double asymptotic expansion of two independent perturbation parameters and is supported by symbolic computation using Mathematica package. Both resonance and non-resonance cases are successfully analyzed and the catastrophes of the torus solutions are classified and discussed. Second, a new method for numerical calculations of the quasi-periodic orbits, which is based on a concept of the general Poincaré map, is addressed. In both cases considered examples support the introduced theory.

Keywords

References

[1] J . Awrejcewicz. Bifurcation and Chaos in Simple Dynamical Systems. World Scientific, Singapore, 1989.
[2] J. Awrejcewicz, W.-D. Reinhardt. Quasi-periodicity, strange non-chaotic and chaotic attractors in the forced system with two degrees of freedom. Journal of Applied Mathematics and Physics, ZAMP, 41: 713- 727, 1990.
[3] J. Awrejcewicz, W.-D. Reinhardt. Some comments about quasi-periodic attractors. Journal of Sound and Vibration, 139: 347- 350, 1990.
[4] J. Awrejcewicz. Three examples of different routes to chaos in simple sinusoidally driven oscillators . Journal of Applied Mathematics and Mechanics ZAMM, 71: 71 - 79, 1991.
[5] J. Awrejcewicz. Vibration system: rotor with self-excited support. In: Proc. of the International Conference on Rotordynamics, 517- 522. Tokyo, Sept. 14- 17, 1986.
Published
Aug 30, 2023
How to Cite
AWREJCEWICZ, Jan. Quasi-periodic solutions: analytical and numerical investigations. Computer Assisted Methods in Engineering and Science, [S.l.], v. 2, n. 1, p. 1-17, aug. 2023. ISSN 2956-5839. Available at: <https://cames.ippt.pan.pl/index.php/cames/article/view/1508>. Date accessed: 14 nov. 2024.
Section
Articles