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[130240] Artykuł: The Twin-Well Duffing Equation: Escape Phenomena, Bistability, Jumps, and Other BifurcationsCzasopismo: Nonlinear Dynamics and Systems Theory Tom: 24, Zeszyt: 2, Strony: 181-192ISSN: 1562-8353 Opublikowano: 2024 Liczba arkuszy wydawniczych: 2.00 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Publikacja w czasopismach wymienionych w wykazie ministra MNiSzW (część A) Punkty MNiSW: 40 Pełny tekst Keywords: metamorphoses of amplitude-frequency curves  bifurcations  |
In this work, we investigate the escape phenomenon, the onset of bistability,
jumps, as well as other bifurcations present in the twin-well Duffing equation.
Based on the known steady-state asymptotic solution – the amplitude-frequency implicit
function – and using the theory of differential properties of implicit functions,
we compute the singular and critical points of this function. This enables us to predict
several bifurcations present in the dynamical system under study. The main result is
the calculation of the escape bifurcation set – the set of parameters for which escape
phenomena occur, and equations to compute the onset of bistability.