Results 11 to 20 of about 138,017 (338)
Survey on forced oscillations in power system
Journal of Modern Power Systems and Clean Energy, 2017 The oscillations in a power system can be categorized into free oscillations and forced oscillations. Many algorithms have been developed to estimate the modes of free oscillations in a power system.
Mohammadreza GHORBANIPARVAR
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Simulation of forced vibration of a wedge pair under the impact of variable force [PDF]
E3S Web of Conferences, 2023 The forced oscillations of a wedge pair under the effect of a variable force are investigated in the article. The general solution to the differential equation of forced oscillations of a wedge pair is chosen in the form depending on some unknown ...
Khudjaev Mukhiddin +3 more
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Energies, 2023 Ensuring the vibration reliability of power equipment is one of the fundamental problems in modern power machinery. This problem has become more critical due to a permanent increase in the machining performance of high-speed milling of axial turbine ...
Ivan Pavlenko +10 more
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Bulletin of the Belgian Mathematical Society - Simon Stevin, 2007 The authors study an interesting problem involving periodic solutions having a symmetry induced by an orthogonal matrix \(A\) for which there is an integer \(p\) such that \(A^p\) is the identity. More precisely, given \(T>0\), they look for solutions \(x\) satisfying the relation \(x(t+T)=A x(t)\), for every \(t\). These solutions are \(pT\)-periodic.
Feckan, M., Ma, R., Thompson, B.
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THE EXCITATION OF THE WHISPERING GALLERY MODES IN THE SHIELDED DIELECTRIC RESONATORS BY SLOT-LINE [PDF]
Радиофизика и электроника, 2015 The spectral and energy characteristics of the shielded halfspherical resonator at the forced oscillations mode are investigated experimentally at using of the slot-line.
A. E. Kogut +3 more
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Streamwise forced oscillations of circular and square cylinders [PDF]
, 2012 The modification of a cylinder wake by streamwise oscillation of the cylinder at the vortex shedding frequency of the unperturbed cylinder is reported. Recent numerical simulations [J. S. Leontini, D. Lo Jacono, and M. C.
Leontini, Justin S. +3 more
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Mixed forced, parametric, and self-oscillations with nonideal energy source and lagging forces [PDF]
Известия высших учебных заведений: Прикладная нелинейная динамика, 2021 The purpose of this study is to determine the effect of retarded forces in elasticity and damping on the dynamics of mixed forced, parametric, and self-oscillations in a system with limited excitation.
Alifov, Alishir Ali oglu
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Four-phase patterns in forced oscillatory systems [PDF]
, 2000 We investigate pattern formation in self-oscillating systems forced by an external periodic perturbation. Experimental observations and numerical studies of reaction-diffusion systems and an analysis of an amplitude equation are presented.
A. Ardelea +30 more
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Beam-beam amplitude detuning with forced oscillations
Physical Review Accelerators and Beams, 2017 Recently, relations were established between the coefficients of free and forced amplitude detuning polynomial expansions. The forced oscillations were considered only in a single plane.
R. Tomás +5 more
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On the Countering of Free Vibrations by Forcing: Part II—Damped Oscillations and Decaying Forcing
Applied Mechanics, 2023 The present two-part paper concerns the active vibration suppression for the simplest damped continuous system, namely the transverse oscillations of an elastic string, with constant tension and mass density per unit length and friction force ...
Luiz M. B. C. Campos, Manuel J. S. Silva
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