Results 21 to 30 of about 1,433,202 (288)

CHARTS STRUTT-INCE FOR GENERALIZED MATHIEU EQUATION [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2012
We have investigated the solution of the generalized Mathieu equation. With the aid of diagrams Stratton-Ince built the instability region, the condition can occur when the parametric resonance.
R.I. Parovik
doaj   +1 more source

Analytical solutions of the simplified Mathieu’s equation [PDF]

open access: yesINCAS Bulletin, 2016
Consider a second order differential linear periodic equation. The periodic coefficient is an approximation of the Mathieu’s coefficient. This equation is recast as a first-order homogeneous system.
Nicolae MARCOV
doaj   +1 more source

Application of Parametric Forced Tuned Solid Ball Dampers for Vibration Control of Engineering Structures

open access: yesApplied Sciences, 2023
In this paper, parametric forced tuned solid ball dampers (TSBD) are considered for vibration control of engineering structures in an untypical way. The special feature of the presented investigation is to evaluate the potential application of parametric
Michael Reiterer, Joachim Muik
doaj   +1 more source

Parametric Resonance of Hopf Bifurcation [PDF]

open access: yesNonlinear Dynamics, 2005
We investigate the dynamics of a system consisting of a simple, harmonic oscillator with small nonlinearity, small damping and small parametric forcing in the neighborhood of 2:1 resonance. We assume that the unforced system exhibits the birth of a stable limit cycle as the damping changes sign from positive to negative (a supercritical Hopf ...
Rand, Richard   +2 more
openaire   +1 more source

Parametric resonance in an expanding universe [PDF]

open access: yesPhysical Review D, 1998
18 pages, Latex, 4 ...
Zlatev, Ivaylo   +2 more
openaire   +2 more sources

Modelling of Parametric Resonance for Heaving Buoys with Position-Varying Waterplane Area

open access: yesJournal of Marine Science and Engineering, 2021
Exploiting parametric resonance may enable increased performance for wave energy converters (WECs). By designing the geometry of a heaving WEC, it is possible to introduce a heave-to-heave Mathieu instability that can trigger parametric resonance.
János Lelkes   +2 more
doaj   +1 more source

Numerical Study of Forced Vibration Suppression by Parametric Anti-Resonance

open access: yesArchives of Acoustics, 2016
The parametric anti-resonance phenomenon as an active damping tool for suppression of externally excited resonant vibration is numerically studied herein. It is well known fact that the anti-resonance phenomenon, i.e.
Ludĕk PEŠEK   +2 more
doaj   +1 more source

Modal Behavior of Microcantilevers Arrays with Tunable Electrostatic Coupling

open access: yesActuators, 2023
We analyse the spectral content and parametric resonant dynamics of an array of elastically and electrostatically coupled interdigitated micro cantilevers assembled into two identical half-arrays.
Nir Dick, Slava Krylov
doaj   +1 more source

Adaptive Properties of a Ferromagnetic Single-Domain Grain in Alternating Magnetic Fields

open access: yesIEEE Access, 2023
A general self-consistent theory of adaptive properties of a ferromagnetic single-domain grain in alternating magnetic fields is constructed. Thresholds of new family of parametric instabilities of all orders are calculated. It is shown that the level of
Vladimir L. Safonov   +2 more
doaj   +1 more source

On the observation of nonclassical excitations in Bose–Einstein condensates

open access: yesNew Journal of Physics, 2016
In the recent experimental and theoretical literature well-established nonclassicality criteria from the field of quantum optics have been directly applied to the case of excitations in matter-waves.
Andreas Finke   +2 more
doaj   +1 more source

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