Results 261 to 270 of about 769,411 (297)

Fast relaxation transients in a kicked damped oscillator

Chaos, Solitons & Fractals, 2007
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Urquizú, Mercè, Correig, Antoni M.
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An improved Fourier analysis of damped transients

[1992] Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis, 2003
It is shown that, using a systematic approach, it is possible to extract the components of very complex temporal signals (oscillating, nonoscillating or mixed), which may be encountered in various and widely diverging scientific fields. This result may be obtained rapidly and at low cost using standard microcomputers.
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Active damping for electromagnetic transients in superconducting systems

IEEE Transactions on Appiled Superconductivity, 1999
The use of superconductors for power transmission has been studied for decades. The lossless nature of superconducting cables makes the system less stable operationally because damping normally provided by resistive losses is eliminated. Breaker actions during routine system operations or in response to faults can trigger high frequency oscillations ...
B.K. Johnson, H.L. Hess
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Transient analysis for damping identification in rotating composite beams with integral damping layers

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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Damping property in power system transient behaviors

2012 IEEE Power and Energy Society General Meeting, 2012
Power 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, null Hsiao-Dong Chiang   +1 more
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Damping analysis for transients of modular multilevel converter

2017 IEEE Energy Conversion Congress and Exposition (ECCE), 2017
Presently the choice of circuit parameters in the design of Modular Multilevel Converters (MMC) depends on iterative time-consuming simulation runs. This paper presents a method based on the Floquet-Lyapunov Theorem by which the dynamic characteristics are predicted analytically.
Haihao Jiang, Boon-Teck Ooi
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Modeling of radiation damping and transient transmitting boundary

International Journal of Geotechnical Engineering, 2013
AbstractOne of the primary obstacles in formulating an accurate yet inexpensive procedure for dynamic soil–structure interaction analysis is the modeling of the unbounded medium beneath the structure. Various available techniques could be classified into a rigorous approach and an approximate approach.
M. N. Viladkar, S. K. Garg, A. K. M. S. Al-Assady   +2 more
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Simulation and Characterization of Particle Damping in Transient Vibrations

Journal of Vibration and Acoustics, 2004
Particle damping is a technique of providing damping with granular particles embedded within small holes in a vibrating structure. The particles absorb kinetic energy through particle-to-wall and particle-to-particle frictional collisions. While the concept of particle damping seems to be simple and it has been used successfully in many fields for ...
Mao, Kuanmin, Wang, Michael Yu, Xu, Zhiwei Z., Chen, Tianning   +3 more
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Damping transients in polymers during sorption and desorption

Journal of Applied Polymer Science, 1965
It has been found that sudden changes in atmospheric vapor pressure of swelling agents result in a transient increase in mechanical damping in polymers. The effect was observed on both raising and lowering the vapor pressure. The systems investigated were: cellulose (paper)–water; cellulose (paper)–ammonia; gelatin–water; nylon 66–water; cellulose ...
Josef Kubát, Björn Lindbergson
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The damped transient behaviour of finite beams and plates

International Journal for Numerical Methods in Engineering, 1969
AbstractThe direct Finite Element Analysis which was successfully employed in the solution of dynamic flexural traveling wave problems is extended herein to provide the transient behaviour of finite beams and plates in which shear deformation and rotatory inertia are considered.
Herbert A. Koenig, Norman Davids
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