Asymptotic solution to the generalized Duffing equation for disturbed oscillator in stochastic resonance

Xiang-lin, Han; Wan-Tao, Lin; Xu, Yonghong; Jia-Qi, Mo

doi:10.7498/aps.63.170204

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2022

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“…One is to establish a dynamic model more in line with engineering practice by considering the complexity of structure from the perspective of system structure [45]. The other is to study the dynamical behaviors of the system under complex excitation and the path leading to chaos [46,47]. Nonlinear systems are prone to resonance.…”

Section: Introductionmentioning

confidence: 99%

Symplectic Dynamics and Simultaneous Resonance Analysis of Memristor Circuit Based on Its van der Pol Oscillator

et al. 2022

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A non-autonomous memristor circuit based on van der Pol oscillator with double periodically forcing term is presented and discussed. Firstly, the differences of the van der Pol oscillation of memristor model between Euler method and symplectic Euler method, four-order Runge–Kutta method (RK4) and four-order symplectic Runge–Kutta–Nyström method (SRKN4), symplectic Euler method and RK4 method, and symplectic Euler method and SRKN4 method in preserving structure are compared from theoretical and numerical simulations, the symmetry and structure preserving and numerical stability of symplectic scheme are demonstrated. Moreover, the analytic solution of the primary and subharmonic simultaneous resonance of this system is obtained by using the multi-scale method. Finally, based on the resonance relation of the system, the chaotic dynamics behaviors with different parameters are studied.

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Section: Introductionmentioning

confidence: 99%