Results 101 to 110 of about 7,653 (211)

Quantum chaos in open systems: a quantum state diffusion analysis

, 1995
Except for the universe, all quantum systems are open, and according to quantum state diffusion theory, many systems localize to wave packets in the neighborhood of phase space points. This is due to decoherence from the interaction with the environment,
Anastopoulos C, Brun T, Brun T, Dowker F, Gell-Mann M, Gell-Mann M, Gisin N, Gisin N, Griffiths R, Griffiths R, Griffiths R, Guckenheimer J, Gutzwiller M C, Halliwell J, Ian C Percival, Joos E, Lindblad G, Omnès R, Omnès R, Omnès R, Percival I C, Rüdiger Schack, Schack R, Spiller T P, Steimle T, Todd A Brun, Twamley J   +26 more
core   +2 more sources

EXACT SOLUTIONS TO CUBIC DUFFING EQUATION FOR A NONLINEAR ELECTRICAL CIRCUIT

Visión Electrónica, 2014
This work provides an exact solution to a cubic Duffing oscillator equation with initial conditions and bounded periodic solutions. This solution is expressed in terms of the Jacobi elliptic function (cn).
Álvaro H. Salas S., Jairo E. Castillo H
doaj  

Kurtosis-guided Duffing for weak signal detection

EURASIP Journal on Advances in Signal Processing
Detecting weak signals embedded in strong noise remains a critical challenge across numerous engineering fields, including mechanical fault diagnosis, underwater acoustics, and biomedical monitoring. The Duffing oscillator is a well-established nonlinear
Haiyang Lou, Rujiang Hao, Qiang Xue
doaj   +1 more source

Partly Duffing Oscillator Stochastic Resonance Method and Its Application on Mechanical Fault Diagnosis

Shock and Vibration, 2016
Due to the fact that the slight fault signals in early failure of mechanical system are usually submerged in heavy background noise, it is unfeasible to extract the weak fault feature via the traditional vibration analysis.
Jian Dang, Rong Jia, Xingqi Luo, Hua Wu, Diyi Chen   +4 more
doaj   +1 more source

A new Hysteretic Nonlinear Energy Sink (HNES)

, 2017
The behavior of a new Hysteretic Nonlinear Energy Sink (HNES) coupled to a linear primary oscillator is investigated in shock mitigation. Apart from a small mass and a nonlinear elastic spring of the Duffing oscillator, the HNES is also comprised of a ...
Charalampakis, Aristotelis E., Tsiatas, George C.   +1 more
core   +1 more source

Dynamic stabilization in the double-well Duffing oscillator

Physical Review E, 2000
Bifurcations associated with stability of the saddle fixed point of the Poincar map, arising from the unstable equilibrium point of the potential, are investigated in a forced Duffing oscillator with a double-well potential. One interesting behavior is the dynamic stabilization of the saddle fixed point.
Kim, Sang-Yoon, Kim, Youngtae
openaire   +3 more sources

The origin point of the unstable solution area of a forced softening Duffing oscillator. [PDF]

Sci Rep, 2022
Wawrzynski W.
europepmc   +1 more source

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

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  

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