Results 11 to 20 of about 40,877 (227)

Research on Damping Engagement Methodology in Dynamic Analysis of Isolated Structure

open access: yesShock and Vibration, 2021
Damping has a significant influence on the calculation of structural seismic response. In this paper, we compare the commonly used viscous damping (Rayleigh damping (RD) and Caughey damping (CD)) in combination with the isolated structure test.
Miao Han   +3 more
doaj   +1 more source

RHEOLOGICAL INTERPRETATION OF RAYLEIGH DAMPING [PDF]

open access: yesJournal of Sound and Vibration, 1997
Damping is defined through various terms such as energy loss per cycle (for cyclic tests), logarithmic decrement (for vibration tests), complex modulus, rise-time or spectrum ratio (for wave propagation analysis), etc. For numerical modeling purposes, another type of damping is frequently used : it is called Rayleigh damping.
openaire   +2 more sources

Formation of a disc gap induced by a planet: Effect of the deviation from Keplerian disc rotation [PDF]

open access: yes, 2015
The gap formation induced by a giant planet is important in the evolution of the planet and the protoplanetary disc. We examine the gap formation by a planet with a new formulation of one-dimensional viscous discs which takes into account the deviation ...
Kanagawa, Kazuhiro D.   +4 more
core   +2 more sources

On a Rayleigh Wave Equation with Boundary Damping

open access: yesNonlinear Dynamics, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Darmawijoyo   +2 more
openaire   +4 more sources

Model Updating for Systems with General Proportional Damping Using Complex FRFs

open access: yesShock and Vibration, 2020
In this paper, we propose a model updating method for systems with nonviscous proportional damping. In comparison to the traditional viscous damping model, the introduction of nonviscous damping will not only reduce the vibration of the system but also ...
Xinhai Wu   +3 more
doaj   +1 more source

Time-Domain Calculation Method of an Equivalent Viscous Damping Model Based on Complex Damping Model

open access: yesShanghai Jiaotong Daxue xuebao, 2021
The damping matrix of the complex damping model is easy to be constructed, which only depends on the material loss factor and the structural stiffness matrix.
SUN Panxu, YANG Hong, ZHAO Zhiming, LIU Qinglin
doaj   +1 more source

Superradiant light scattering from a moving Bose-Einstein condensate [PDF]

open access: yes, 2003
We investigate the interaction of a moving BEC with a far detuned laser beam. Superradiant Rayleigh scattering arises from the spontaneous formation of a matter-wave grating due to the interference of two wavepackets with different momenta. The system is
Bonifacio, R.   +6 more
core   +2 more sources

Mesoscale Modelling of Bond Behavior at FRP-Concrete under Mode II Loading: Effect of Rayleigh Damping

open access: yesInternational Journal of Polymer Science, 2017
The paper mainly focuses on the study of the effects of Rayleigh damping in the simulations of FRP-concrete bonded joints, thereby proposing an approach to determine the value of its appropriate Rayleigh damping.
Feng-chen An   +3 more
doaj   +1 more source

Rayleigh-Jeans condensation of pumped magnons in thin film ferromagnets [PDF]

open access: yes, 2002
We show that the formation of a magnon condensate in thin ferromagnetic films can be explained within the framework of a classical stochastic non-Markovian Landau-Lifshitz-Gilbert equation where the properties of the random magnetic field and the ...
Rückriegel, Andreas, Kopietz, Peter
core   +4 more sources

A METHOD FOR DETERMINING RAYLEIGH DAMPING PARAMETERS OF COMPLEX FIELD

open access: yesCivil Engineering Journal, 2019
Rayleigh damping model, which is still adopted by manygeneral finite element programs and widely used in analysis of engineering, leads to the inconformity of the calculating modal damping ratio with the actual modal ...
Huai-feng Wang, Ru-lin Zhang
doaj   +1 more source

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