The simplest approach to nonlinear oscillators

Abstract

This paper gives the simplest approach to the cubic-quintic Duffing equation (M.S.H. Chowdhury et al., Results in Physics 7(2017): 3962–3967), providing an extremely fast and relatively accurate estimation of the frequency of a nonlinear conservative oscillator. Keywords: Frequency formulation, Duffing oscillator, Nonlinear conservative oscillator