Results 251 to 260 of about 112,422 (307)
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Particle Impact Damping of Transient Vibrations
46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, 2005d = clearance of the enclosure E = Young’s modulus of the beam g = acceleration of gravity = 9.81m/s M = primary mass (reduced mass of the beam) m = mass of the particles mencl = mass of the enclosure N = number of particles T = maximum kinetic energy during one cycle T = kinetic energy dissipated during one cycle U = displacement amplitude of the ...
Vikram Kinra, Kun Marhadi, Bryan Witt
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Online Assessment and Control of Transient Oscillations Damping
IEEE Transactions on Power Systems, 2004Summary form only given. A new approach to on-line assessment and control of transient oscillations is proposed. It relies on coupling Prony analysis and the SIME transient stability method, with the twofold objective: on one hand, to improve Prony's, applicability and reliability, and on the other hand to design generation rescheduling patterns able ...
D. Ruiz-Vega, A.R. Messina, M. Pavella
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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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