A Novel Megastable Hamiltonian System with Infinite Hyperbolic and Nonhyperbolic Equilibria
Gervais Dolvis Leutcho, Théophile Fonzin Fozin, A. Nguomkam Negou, Zeric Tabekoueng Njitacke, Viet–Thanh Pham, Jacques Kengne, Sajad Jafari, Carlos Aguilar-Ibáñez
Abstract
The dimension of the conservative chaotic systems is an integer and equals the system dimension, which brings about a better ergodic property and thus have potentials in engineering application than the dissipative systems. This paper investigates the phenomenon of megastability in a unique and simple conservative oscillator with infinite of hyperbolic and nonhyperbolic equilibria. Using traditional nonlinear analysis tools, we found that the introduced oscillator possesses an invariable energy and displays either self-excited or hidden dynamics depending on the stability of its equilibria. Besides, the conservative nature of the new system is validated using theoretical measurement. Furthermore, an analog simulator of the oscillator is built and simulated in the PSpice environment to confirm that the previous results were not artifacts.