Application of He's frequency-amplitude formulation to the Duffing-harmonic oscillator

Jie Fan

Abstract


The work presents a derivation of frequency-amplitude of the
Duffing-harmonic oscillator from a formulation suggested
by Ji-Huan He. The obtained result is valid for all amplitudes,
and its maximal error is less than 2.2

Keywords


Ancient Chinese mathematics; nonlinear oscillator; He's frequency-amplitude formulation

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