Results 261 to 270 of about 1,824,759 (302)

Gilbert damping in magnetic layered systems

Physical Review B, 2014
TheGilbertdampingconstantpresentinthephenomenologicalLandau-Lifshitz-Gilbertequationdescribingthe dynamics ofmagnetization iscalculated forferromagneticmetallicfilmsaswellas Co/nonmagnet(NM)bilayers. The calculations are done within a realistic nine-orbital tight-binding model including spin-orbit coupling.
E. Barati, M. Cinal, D. M. Edwards, A. Umerski   +3 more
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A Quantitative Evaluation of Constrained-Layer Damping

Journal of Engineering for Industry, 1967
The constrained-layer damping mechanisms on plates, beams, and tubular structures have been experimentally studied with well characterized viscoelastic materials. The Kerwin analysis [1] on plate damping has been extensively verified; important variables can now be individually controlled to achieve optimum performance.
J. E. Barry, T. J. Kelly, T. P. Yin
openaire   +1 more source

Design of Constrained Layer Damping Topologies

Aerospace, 2003
The aim of this research is to determine the optimal topologies for viscoelastic lamina used for vibration damping. The optimization objective is to maximize the system loss factor for the first resonance frequency of a base structure. Previous optimal design studies examining viscoelastic lamina have been size or shape optimization studies, assuming a
Arnold Lumsdaine, Rohan Pai
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Constrained layer damping with vitreous enamel

Journal of Sound and Vibration, 1984
Abstract The concept of constrained layer damping with vitreous enamel has been experimentally evaluated. The constraining layer markedly broadens the free layer damping peak. The broadening has been explained on the basis of two simultaneous energy dissipation mechanisms and is related to the vitreous enamel's loss factor and viscosity.
B. Kumar, M.L. Drake
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The use of constrained layer damping in vibration control

International Journal of Mechanical Sciences, 1989
Abstract Constrained layer damping is widely used in engineering practice for minimizing unwanted vibration. This paper describes an application to an outlet guide vane whereby damping treatments are considered in terms of external constrained layers and internal fillers.
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Constrained Layer Damping Treatments for Microstructures

Micro-Electro-Mechanical Systems (MEMS), 2001
Abstract This paper presents a bulk micro-machining process to fabricate micro-constrained layer treatments (MCLT) on a microstructure to increase its damping. MCLT consists of a silicon base beam or plate, a viscoelastic photoresist layer, and an aluminum constraining layer.
Yi-Chu Hsu, I. Y. Shen
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Sandwich structures with partial damping layers

The Journal of the Acoustical Society of America, 1980
According to the invention the damping of vibration on the part of a structural material such as metal or concrete is effected by applying a limited amount of vibration-damping viscoelastic material between the two such structural parts, the vibration-damping material being being applied in lines, points or the like spaced from each other at distances ...
Gunnar I. Hagbjer, Odd B. Sylwan
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Surface resistivity and vibrational damping in adsorbed layers

Physical Review B, 1991
I derive a simple relation between the change in dc resistivity \ensuremath{\Delta}\ensuremath{\rho} of a thin metallic film due to adsorption of molecules on the film surface and the electron-hole pair damping (lifetime \ensuremath{\tau}) of the frustrated translations of the adsorbates.
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Forced vibrations of a viscoelastic damping layer

Polymer Mechanics, 1974
Forced vibrations of a viscoelastic damping layer are investigated. The equations obtained are reduced to normal modes, and the solutions are determined for nonresonance and resonance cases of vibrations.
V. P. Maiboroda, B. I. Morgunov, M. A. Koltunov   +2 more
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Layered Plate Damping Systems

IMAC - Austin, Texas, United States of America - February - 2023, 2022
Dana Figueroa, Gregory Dorgant, Zachary Rogers   +2 more
openaire   +1 more source