Journal ArticleDOI
Amplitude modulated chaos in two degree-of-freedom systems with quadratic nonlinearities
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TLDR
In this paper, two degree-of-freedom systems with weak quadratic nonlinearities were studied under weak external and parametric excitations respectively, and the method of averaging was used to obtain a set of four first-order amplitude equations that govern the dynamics of the firstorder asymptotic approximation to the response.Abstract:
Two degree-of-freedom systems with weak quadratic nonlinearities are studied under weak external and parametric excitations respectively. All six possible cases, that arise in the presence of 1∶2 internal resonance, are investigated. The method of averaging is used to obtain a set of four first-order amplitude equations that govern the dynamics of the first-order asymptotic approximation to the response. An analytical technique, based on Melnikov's method is used to predict the parameter range for which chaotic dynamics exists in the undamped averaged system. Numerical studies show that such chaotic responses are quite common in these quadratic systems, and they seem to persist even in the presence of damping.read more
Citations
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Journal ArticleDOI
Dynamics of autoparametric vibration absorbers using multiple pendulums
Ashwin Vyas,Anil K. Bajaj +1 more
TL;DR: In this article, the dynamics of a resonantly excited single-degree-of-freedom linear system coupled to an array of non-linear autoparametric vibration absorbers (pendulums) is analyzed.
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Dynamics of a nonlinear microresonator based on resonantly interacting flexural-torsional modes
TL;DR: In this paper, an electrostatically actuated pedal-micro- resonator design, utilizing internal resonance between an out-of-plane torsional mode and a flexural in-plane vibrating mode is considered.
Journal ArticleDOI
Dynamics of structures with wideband autoparametric vibration absorbers: theory
TL;DR: In this paper, the dynamics of a resonantly excited single-degree-of-freedom linear system coupled to an array of nonlinear autoparametric vibration absorbers (pendulums) are analyzed.
Journal ArticleDOI
Bifurcations in an autoparametric system in 1:1 internal resonance with parametric excitation
Siti Fatimah,M. Ruijgrok +1 more
TL;DR: In this article, an autoparametric system consisting of an oscillator and a parametrically excited subsystem is considered, where the oscillator is at rest and the excited subsystem performs a periodic motion.
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Global bifurcations and chaos in externally excited cyclic systems
Weiqin Yu,Fangqi Chen +1 more
TL;DR: In this article, the global bifurcations in mode interaction of a nonlinear cyclic system subjected to a harmonic excitation are investigated with the case of the primary resonance, the averaged equations representing the evolution of the amplitudes and phases of the interacting normal modes exhibit complex dynamics.
References
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Book
Introduction to Applied Nonlinear Dynamical Systems and Chaos
TL;DR: The Poincare-Bendixson Theorem as mentioned in this paper describes the existence, uniqueness, differentiability, and flow properties of vector fields, and is used to prove that a dynamical system is Chaotic.
Book
Perturbations: Theory and Methods
TL;DR: In this article, the root finding regular perturbation theory is used to find regular perturbations and direct error estimation of the WKB Type Appendices Symbol Index Index.
Journal ArticleDOI
Modal Interactions in Dynamical and Structural Systems
TL;DR: In this paper, the authors review theoretical and experimental studies of the influence of modal interactions on the nonlinear response of harmonically excited structural and dynamical systems, and discuss the response of pendulums, ships, rings, shells, arches, beam structures, surface waves, and the similarities in the qualitative behavior of these systems.
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