Results 111 to 120 of about 7,689 (210)

Preliminary design of a test rig for combining passive nonlinear isolation with active control

, 2012
Resilient elements are typically used to isolate delicate equipment from a vibrating host structure. Conventionally, these isolators are designed to operate in their linear region, but more recently nonlinear isolators have been employed to increase the ...
Ab Rahim, M., Rustighi, E., Waters, T.P.
core  

Passive Islanding Detection of Inverter-Based Resources in a Noisy Environment

Energies
Islanding occurs when a load is energized solely by local generators and can result in frequency and voltage instability, changes in current, and poor power quality.
Hossein Amini, Ali Mehrizi-Sani, Reza Noroozian   +2 more
doaj   +1 more source

First integrals for the Duffing-van der Pol type oscillator

Electronic Journal of Differential Equations, 2010
In this article, under certain parametric conditions, we study the first integrals of the Duffing-van der Pol-type oscillator equations which include the van der Pol and the Duffing oscillator systems, as particular cases.
Guangyue Gao, Zhaosheng Feng
doaj  

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

Journal 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, M. L. Alvarez, J. Francés, S. Bleda, T. Beléndez, A. Nájera, E. Arribas   +6 more
doaj   +1 more source

On a Duffing-type oscillator differential equation on the transition to chaos with fractional q-derivatives

Journal of Inequalities and Applications
In this paper, by applying fractional quantum calculus, we study a nonlinear Duffing-type equation with three sequential fractional q-derivatives. We prove the existence and uniqueness results by using standard fixed-point theorems (Banach and Schaefer ...
Mohamed Houas, Mohammad Esmael Samei, Shyam Sundar Santra, Jehad Alzabut   +3 more
doaj   +1 more source

Using the transient trajectories of an optically levitated nanoparticle to characterize a stochastic Duffing oscillator. [PDF]

Sci Rep, 2020
Flajšmanová J, Šiler M, Jedlička P, Hrubý F, Brzobohatý O, Filip R, Zemánek P.   +6 more
europepmc   +1 more source

Research on the Threshold Determination Method of the Duffing Chaotic System Based on Improved Permutation Entropy and Poincaré Mapping. [PDF]

Entropy (Basel), 2023
Zhou J, Li Y, Wang M.
europepmc   +1 more source

Noise-induced reentrant transition of the stochastic Duffing oscillator of the stochastic Duffing oscillator

, 2004
We derive the exact bifurcation diagram of the Duffing oscillator with parametric noise thanks to the analytical study of the associated Lyapunov exponent. When the fixed point is unstable for the underlying deterministic dynamics, we show that the system undergoes a noise-induced reentrant transition in a given range of parameters.
Mallick, Kirone, Marcq, Philippe
openaire   +1 more source

Duffing oscillator

Scholarpedia, 2008
openaire   +1 more source

Stabilizing uncertain steady states of some dynamical systems by means of proportional feedback

Nonlinear Analysis, 2013
A simple zero-order proportional feedback technique for stabilizing unknown fixed points is described. The technique employs either artificially created or natural stable fixed point to find the coordinates of the unknown unstable fixed point.
Elena Tamaševičiūtė, Arūnas Tamaševičius   +1 more
doaj