Results 71 to 80 of about 7,901 (195)

Analysis of a duffing oscillator that exhibits hysteresis with varying excitation frequency and amplitude [PDF]

open access: yes, 2007
Hysteresis, or jump phenomenon, are a common and severe nonlinear behaviour associated with the Duffing oscillator and the multi-valued properties of the response solution.
Billings, S.A., Li, L.M.
core   +1 more source

Tension-induced non-linearities of flexural modes in nanomechanical resonators

open access: yes, 2013
We consider the tension-induced non-linearities of mechanical resonators, and derive the Hamiltonian of the flexural modes up to the fourth order in the position operators. This tension can be controlled by a nearby gate voltage.
Heikkilä, T. T.   +2 more
core   +1 more source

Existence of periodic solutions of duffing equations

open access: yesJournal of Differential Equations, 1989
As the authors point out in the Introduction ``The main motivation for thus study is a paper by \textit{P. Dràbek} and \textit{S. Invernizzi} [Nonlinear Anal., Theory Methods Appl. 10, 643-650 (1986; Zbl 0616.34010)]''. One studies the problem \(u''(t)+ku'(t)+g(t,u(t))=f(t),\) \(u(0)=u(2\pi)\), \(u'(0)=u'(2\pi)\). To quote again from the Introduction ``
Habets, Patrick, Metzen, Gerhard
openaire   +2 more sources

Variational calculation of the period of nonlinear oscillators

open access: yes, 2004
The problem of calculating the period of second order nonlinear autonomous oscillators is formulated as an eigenvalue problem. We show that the period can be obtained from two integral variational principles dual to each other.
Benguria, R. D., Depassier, M. C.
core   +1 more source

Nonlinear-damped Duffing oscillators having finite time dynamics

open access: yes, 2014
A class of modified Duffing oscillator differential equations, having nonlinear damping forces, are shown to have finite time dynamics, i.e., the solutions oscillate with only a finite number of cycles, and, thereafter, the motion is zero.
Bullock, Ray   +3 more
core   +1 more source

Chaos of the Relativistic Parametrically Forced van der Pol Oscillator

open access: yes, 1998
A manifestly relativistically covariant form of the van der Pol oscillator in 1+1 dimensions is studied. We show that the driven relativistic equations, for which $x$ and $t$ are coupled, relax very quickly to a pair of identical decoupled equations, due
Bogoliuboff   +24 more
core   +1 more source

An improved Mickens’ solution for nonlinear vibrations

open access: yesAlexandria Engineering Journal
The Duffing equation and other nonlinear equations of motion of nonlinear vibrations are widely applied in the fields of engineering and science, especially mechanical and electrical engineering.
M.M. Ayub Hossain, B.M. Ikramul Haque
doaj   +1 more source

Analytical Approximate Solutions for the Cubic-Quintic Duffing Oscillator in Terms of Elementary Functions

open access: yesJournal of Applied Mathematics, 2012
Accurate approximate closed-form solutions for the cubic-quintic Duffing oscillator are obtained in terms of elementary functions. To do this, we use the previous results obtained using a cubication method in which the restoring force is expanded in ...
A. Beléndez   +6 more
doaj   +1 more source

Modified Legendre Wavelets Technique for Fractional Oscillation Equations

open access: yesEntropy, 2015
Physical Phenomena’s located around us are primarily nonlinear in nature and their solutions are of highest significance for scientists and engineers.
Syed Tauseef Mohyud-Din   +2 more
doaj   +1 more source

Analysis of nonlinear oscillators using volterra series in the frequency domain Part I : convergence limits [PDF]

open access: yes, 2009
The Volterra series representation is a direct generalisation of the linear convolution integral and has been widely applied in the analysis and design of nonlinear systems, both in the time and the frequency domain.
Billings, S.A., Li, L.M.
core  

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