Results 191 to 200 of about 40,877 (227)

Wavenumber variations of spatially damped Rayleigh–Bénard convection

The Physics of Fluids, 1981
Under subcritical conditions, it is shown that a spatial variation of the velocity amplitude of convective rolls is accompanied by a modification in their wavenumber which takes values lower than the critical one.
P. Atten, J. E. Wesfreid
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Effects of Rayleigh Damping on the Subgrade’s Apparent Nonlinearity

Journal of Transportation Engineering, Part B: Pavements, 2020
AbstractThe effect of the subgrade’s apparent (superficial) nonlinearity captured during falling weight deflectometer (FWD) testing has been a major challenge for pavement engineers in trying to ba...
Gabriel Bazi, Jeffrey Gagnon, Peter Sebaaly, Per Ullidtz   +3 more
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Maxwell Damping: An Alternative to Rayleigh Damping

Geo-Extreme 2021, 2021
E. M. Dawson, Z. Cheng
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Viscosity Tensor Approach to the Damping of Rayleigh Waves

Journal of Applied Physics, 1969
An expression for the attenuation of a generalized Rayleigh wave has been obtained in terms of a viscosity tensor. The values of the viscosity components for Quartz obtained from measurements on bulk waves have been used to calculate the attenuation of several surface waves on that material.
P. J. King, F. W. Sheard
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On the modal damping ratios of shear-type structures equipped with Rayleigh damping systems

Journal of Sound and Vibration, 2006
Abstract The effects of added manufactured viscous dampers upon shear-type structures are analytically investigated here for the class of Rayleigh damping systems. The definitions of mass proportional damping (MPD) and stiffness proportional damping (SPD) systems are briefly recalled and their physical counterpart is derived.
TROMBETTI, TOMASO, SILVESTRI, STEFANO
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Multi-frequency inversion in Rayleigh damped Magnetic Resonance Elastography

Biomedical Signal Processing and Control, 2014
Abstract Magnetic Resonance Elastography (MRE) is able to identify mechanical properties of biological tissues in vivo based on underlying assumptions of the model used for inversion. Models, such as the linearly elastic or viscoelastic (VE), can be used with a single input frequency data and can produce a reasonable estimate of identified ...
Andrii Y. Petrov, Paul D. Docherty, Mathieu Sellier, J. Geoffrey Chase   +3 more
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Stability of a nonuniform Rayleigh beam with indefinite damping

Systems & Control Letters, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yung, SP, Wang, JM
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On the use of Rayleigh damping for seismic analysis

Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics, 2009
Rayleigh damping is widely used for dynamic analysis of structures. Although it is based on a simple formula, the use of Rayleigh damping for seismic analysis involves a hidden complication, which is commonly overlooked both in theory and in practice. The complication arises because mass-proportional damping introduces an extra term into the equations ...
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Damping of Rayleigh waves excited by a moving source

Journal of Soviet Mathematics, 1979
The displacement field in a layered medium excited by a moving source is investigated. The resonance occurring when the speeds of the source and of the Rayleigh wave coincide is investigated and the character of the damping in this case is clarified.
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Characterization and Synthesis of Rayleigh Damped Elastodynamic Networks

2016
We consider damped elastodynamic networks where the damping matrix is assumed to be a non-negative linear combination of the stiffness and mass matrices (Rayleigh damping). We give here a characterization of the frequency response of such networks.
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