Results 251 to 260 of about 112,798 (305)
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Damping property in power system transient behaviors
2012 IEEE Power and Energy Society General Meeting, 2012Power system transient behavior is subject to impact of several types of damping. Based on the Weierstrass approximation theorem, a numerical method is proposed to calculate the damping torque and damping coefficient of power system described by detailed model, no matter that the post-fault system is stable or not.
null Ningqiang Jiang +1 more
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Damping in transmission systems under transient conditions
Proceedings of the Institution of Electrical Engineers, 1969The general practice of neglecting the damping introduced by transmission networks during power-system transient-stability investigations is questioned, and a method is presented for calculating swing curves to include the influence of instantaneous frequency variations on the transmission network.
M.Y. Akhtar, S. Kaneff
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Transient response analysis of systems with different damping models
Computer Methods in Applied Mechanics and Engineering, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Barkanov, E., Hufenbach, W., Kroll, L.
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Transient Damping in Equiaxed and Irregular Ferrite
Metal Science Journal, 1968AbstractTransient damping in equiaxed and irregular ferrite in high-purity iron after 2½ and 5% strain has been investigated, using a low-frequency torsion pendulum. Recovery can be fitted to an equation of the type P = exp (− Btn), where n varies between 0.15 and 0.45. The activation energy for recovery is between 8.5 and 10.5 kcal/mole.
I. F. Hughes, B. L. Daniell
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Transient response of a Brownian particle with general damping
The Journal of Chemical Physics, 2004We study the transient response of a Brownian particle with general damping in a system of metastable potential well. The escape rate is evaluated as a function of time after an infinite wall is removed from the potential barrier. It takes a relaxation time for the rate to reach its limit value and this rate relaxation time differs from the relaxation ...
L Y, Chen, Patrick L, Nash
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Transient tumbling chaos and damping identification for parametric pendulum
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2007The aim of this study is to provide a simple, yet effective and generally applicable technique for determining damping for parametric pendula. The proposed model is more representative of system dynamics because the numerical results describe the qualitative features of experimentally exhibited transient tumbling chaotic motions well.
Horton, Bryan +2 more
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Smart Materials and Structures, 1996
The first objective of this paper is to evaluate the performance of damping identification algorithms. The second objective is to determine the feasibility of damping augmentation in rotating composite beams via passive constrained layer damping (PCLD).
Clifford B Smith, Norman M Wereley
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The first objective of this paper is to evaluate the performance of damping identification algorithms. The second objective is to determine the feasibility of damping augmentation in rotating composite beams via passive constrained layer damping (PCLD).
Clifford B Smith, Norman M Wereley
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IEEE Power Engineering Society General Meeting, 2005, 2005
This paper presents a technique for accurate discrimination between transient voltage stability and voltage sag by combining damped sinusoids-based transient modeling with neural networks. Transient modeling is accomplished by energy adapted matching pursuits with an over-complete dictionary of damped sinusoids.
N. Ruiz-Reyes +2 more
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This paper presents a technique for accurate discrimination between transient voltage stability and voltage sag by combining damped sinusoids-based transient modeling with neural networks. Transient modeling is accomplished by energy adapted matching pursuits with an over-complete dictionary of damped sinusoids.
N. Ruiz-Reyes +2 more
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Damping Nonlinearities and Transient Inputs
The Journal of the Acoustical Society of America, 1969Damping is generally considered to be linear in the mathematical analysis of lumped parameter systems by their associated modal equations of motion. Considering all sources of damping, the damping force should be represented by both linear and nonlinear functions of the modal displacement and velocity and/or a hysteresis curve.
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Uncertainty Quantification for Damping in Transient Pressure Oscillations
Journal of Water Resources Planning and Management, 2019AbstractThe uncertainty of a model to determine the damping of pressure head oscillations following a sudden valve closure in a simple piping system in a pressurized closed conduit is quantified us...
Sahad Khilqa +4 more
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