Results 11 to 20 of about 7,653 (211)

A new Duffing detection method for underwater weak target signal

open access: yesAlexandria Engineering Journal, 2022
On the basis of the double coupled Duffing oscillator, a differential double coupled Duffing oscillator method, called the proposed method 1, is proposed.
Guohui Li, Yongming Hou, Hong Yang
doaj   +1 more source

Ansatz and Averaging Methods for Modeling the (Un)Conserved Complex Duffing Oscillators

open access: yesMathematics, 2023
In this study, both the ansatz and averaging methods are carried out for analyzing the complex Duffing oscillators including the undamped/conserved complex Duffing oscillator (CDO) and the damped/unconserved CDO to obtain some approximate analytical ...
Weaam Alhejaili   +2 more
doaj   +1 more source

The bistable Duffing oscillator in discrete time

open access: yesФизика волновых процессов и радиотехнические системы, 2020
The dynamics of an oscillatory system with a soft cubic-nonlinear return force a bistable Duffing oscillator, in discrete time are consider. The mathematical analysis is based on a continuous-time model in the form of the Duffing equation.
V.V. Zaitsev
doaj   +1 more source

Detection of coupling in Duffing oscillator systems [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2021
In complex dynamical systems, the detection of coupling and its direction from observed time series is a challenging task. We study coupling in coupled Duffing oscillator systems in regular and chaotic dynamical regimes. By observing the conditional mutual information (CMI) based on the Shannon entropy, we successfully infer the direction of coupling ...
Martin Brešar   +2 more
openaire   +3 more sources

Mathematical Model of Fractional Duffing Oscillator with Variable Memory

open access: yesMathematics, 2020
The article investigates a mathematical model of the Duffing oscillator with a variable fractional order derivative of the Riemann–Liouville type. The study of the model is carried out using a numerical scheme based on the approximation of the fractional
Valentine Kim, Roman Parovik
doaj   +1 more source

Semi-analytical solution of non-homogeneous Duffing oscillator equation by the Padé differential transformation algorithm

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2022
The Duffing oscillator equation is one of important equations that model several nonlinear phenomena in science and engineering. The differential transform method (DTM) is applied to obtain the solutions of homogeneous and non-homogeneous Duffing ...
Noufe H Aljahdaly, Maram A Alharbi
doaj   +1 more source

On Artifacts in Nonlinear Dynamics [PDF]

open access: yes, 2017
Nonlinear oscillations are of permanent interest in the field of dynamics of mechanical and mechatronical systems. There exist several well-known semi-analytical methods like Harmonic Balance, perturbation analysis or multiple scales for such problems ...
Lentz, Lukas, Wagner, Utz von
core   +1 more source

STUDY OF THE SINGULAR POINTS OF THE FRACTIONAL OSCILLATOR VAN DER POL-DUFFING [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2019
A study is conducted on the asymptotic stability of the rest points of the fractional oscillator Van der Pol-Duffing. The fractional van der Pol-Duffing oscillator is an oscillatory system of two differential equations with fractional order derivatives ...
Е. R. Novikova
doaj   +1 more source

Stability analysis of a noise-induced Hopf bifurcation [PDF]

open access: yes, 2003
We study analytically and numerically the noise-induced transition between an absorbing and an oscillatory state in a Duffing oscillator subject to multiplicative, Gaussian white noise.
Mallick, Kirone, Marcq, Philippe
core   +4 more sources

VAN DER POL-DUFFING OSCILLATOR WITH THE EFFECT OF HEREDITARY [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2017
The paper presents a new mathematical model of the van der Pol oscillator, Duffing with external periodic influence given hereditarity. An algorithm for finding the numerical solution of the original model equation, which is based on the finite ...
Novikovа E. R.
doaj   +1 more source

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