Analyzing the chaotic and stability behavior of a duffing oscillator excited by a sinusoidal external force

This paper delves into the dynamical, chaotic, and stability aspects of the Duffing oscillator (DO) under sinusoidal external excitation, underscoring its relevance in various scientific and engineering applications. The DO, with its complex behavior, poses a significant challenge to our understandi...

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Main Authors: MK Abohamer, TS Amer, A Arab, AA Galal
Format: Article
Language:English
Published: SAGE Publishing 2025-06-01
Series:Journal of Low Frequency Noise, Vibration and Active Control
Online Access:https://doi.org/10.1177/14613484241298998
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author MK Abohamer
TS Amer
A Arab
AA Galal
author_facet MK Abohamer
TS Amer
A Arab
AA Galal
author_sort MK Abohamer
collection DOAJ
description This paper delves into the dynamical, chaotic, and stability aspects of the Duffing oscillator (DO) under sinusoidal external excitation, underscoring its relevance in various scientific and engineering applications. The DO, with its complex behavior, poses a significant challenge to our understanding. A unique perturbation technique, the multiple-scales (MS), is harnessed to tackle this challenge and enrich our knowledge. The analysis entails determining third-order expansions, exploring resonant cases, and factoring in the influence of viscous damping. The accuracy of the analytical solution is cross-validated with numerical results using the Runge–Kutta fourth-order (RK4). The paper also employs effective methods to assess the obtained results qualitatively. As a result, Visual figures, such as bifurcation diagrams and Lyapunov exponents’ spectra (LES), have been presented to illustrate diverse system motions and demonstrate Poincaré diagrams. Moreover, stability analysis has been investigated via resonance curves showing the stable and unstable regions. These aids facilitate our comprehension of the system’s complex behavior and its variations under different conditions. The results are elucidated through displayed curves, offering insights into the dynamics of the DO under sinusoidal excitation and damping effects. The influence of excitation and the quadratic parameter on bifurcation diagrams, LES, and Poincaré maps helps us understand the intricate behavior of nonlinear oscillatory systems, such as DO. The presented oscillator is a compelling example of elucidating the nonlinear behavior observed in numerous engineering and physics phenomena.
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issn 1461-3484
2048-4046
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publishDate 2025-06-01
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spelling doaj-art-9b54bd281e304614aba90713cb680d632025-08-20T02:39:58ZengSAGE PublishingJournal of Low Frequency Noise, Vibration and Active Control1461-34842048-40462025-06-014410.1177/14613484241298998Analyzing the chaotic and stability behavior of a duffing oscillator excited by a sinusoidal external forceMK AbohamerTS AmerA ArabAA GalalThis paper delves into the dynamical, chaotic, and stability aspects of the Duffing oscillator (DO) under sinusoidal external excitation, underscoring its relevance in various scientific and engineering applications. The DO, with its complex behavior, poses a significant challenge to our understanding. A unique perturbation technique, the multiple-scales (MS), is harnessed to tackle this challenge and enrich our knowledge. The analysis entails determining third-order expansions, exploring resonant cases, and factoring in the influence of viscous damping. The accuracy of the analytical solution is cross-validated with numerical results using the Runge–Kutta fourth-order (RK4). The paper also employs effective methods to assess the obtained results qualitatively. As a result, Visual figures, such as bifurcation diagrams and Lyapunov exponents’ spectra (LES), have been presented to illustrate diverse system motions and demonstrate Poincaré diagrams. Moreover, stability analysis has been investigated via resonance curves showing the stable and unstable regions. These aids facilitate our comprehension of the system’s complex behavior and its variations under different conditions. The results are elucidated through displayed curves, offering insights into the dynamics of the DO under sinusoidal excitation and damping effects. The influence of excitation and the quadratic parameter on bifurcation diagrams, LES, and Poincaré maps helps us understand the intricate behavior of nonlinear oscillatory systems, such as DO. The presented oscillator is a compelling example of elucidating the nonlinear behavior observed in numerous engineering and physics phenomena.https://doi.org/10.1177/14613484241298998
spellingShingle MK Abohamer
TS Amer
A Arab
AA Galal
Analyzing the chaotic and stability behavior of a duffing oscillator excited by a sinusoidal external force
Journal of Low Frequency Noise, Vibration and Active Control
title Analyzing the chaotic and stability behavior of a duffing oscillator excited by a sinusoidal external force
title_full Analyzing the chaotic and stability behavior of a duffing oscillator excited by a sinusoidal external force
title_fullStr Analyzing the chaotic and stability behavior of a duffing oscillator excited by a sinusoidal external force
title_full_unstemmed Analyzing the chaotic and stability behavior of a duffing oscillator excited by a sinusoidal external force
title_short Analyzing the chaotic and stability behavior of a duffing oscillator excited by a sinusoidal external force
title_sort analyzing the chaotic and stability behavior of a duffing oscillator excited by a sinusoidal external force
url https://doi.org/10.1177/14613484241298998
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