Homotopy Perturbation Method for the Fractal Toda Oscillator

Abstract

The fractal Toda oscillator with an exponentially nonlinear term is extremely difficult to solve; Elias-Zuniga et al. (2020) suggested the equivalent power-form method. In this paper, first, the fractal variational theory is used to show the basic property of the fractal oscillator, and a new form of the Toda oscillator is obtained free of the exponential nonlinear term, which is similar to the form of the Jerk oscillator. The homotopy perturbation method is used to solve the fractal Toda oscillator, and the analytical solution is examined using the numerical solution which shows excellent agreement. Furthermore, the effect of the order of the fractal derivative on the vibration property is elucidated graphically.

Keywords

• fractal Hamilton principle
• fractal Weierstrass theorem
• strong minimum condition
• Toda oscillator homotopy perturbation method
• frequency-amplitude relationship