Results 31 to 40 of about 283,093 (346)

Parameters Influence of New Particle Damper-based Fastener on its Damping Ratio

open access: yesChengshi guidao jiaotong yanjiu
[Objective] Fastener stiffness and damping are important factors affecting rail system vibration and wheel-rail noise, especially the fastener damping can directly affects the high frequency attenuation rate of the rail structure (rail noise) and the ...
YAO Yuyang   +3 more
doaj   +1 more source

Longitudinally Vibrating Elastic Rods with Locally and Non-Locally Reacting Viscous Dampers

open access: yesShock and Vibration, 2005
Eigencharacteristics of a longitudinally vibrating elastic rod with locally and non-locally reacting damping are analyzed. The rod is considered as a continuous system and complex eigenfrequencies are determined as solution of a characteristic equation ...
Şefaatdin Yüksel, Uğur Dalli
doaj   +1 more source

Development of excitation test method for non-synchronous vibration of rotating turbine blade (Measurement of damping of non-synchronous vibration mode)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
In order to analyze the blade vibration caused by flutter, it is necessary to understand both the aerodynamic damping and structural damping of the high vibration stress. Flutter Vibration mode occurring in the rated speed is non-synchronous mode.
Ryou AKIYAMA   +3 more
doaj   +1 more source

First-principles study of magnetization relaxation enhancement and spin-transfer in thin magnetic films [PDF]

open access: yes, 2004
The interface-induced magnetization damping of thin ferromagnetic films in contact with normal-metal layers is calculated from first principles for clean and disordered Fe/Au and Co/Cu interfaces.
Bauer, G. E. W.   +4 more
core   +4 more sources

Laboratory investigation on damping characteristics of homogeneous and stratified soil-ash system

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
In this study, the damping responses of uniform soil, equi-proportional fly ash, and local soil as a single unit were investigated. The large-strain cyclic triaxial tests were performed for the specimen compacted at the desired density (95%–99% of ...
Amit Kumar Ram, Supriya Mohanty
doaj   +1 more source

Chiral damping, chiral gyromagnetism and current-induced torques in textured one-dimensional Rashba ferromagnets

open access: yes, 2017
We investigate Gilbert damping, spectroscopic gyromagnetic ratio and current-induced torques in the one-dimensional Rashba model with an additional noncollinear magnetic exchange field.
Blügel, Stefan   +2 more
core   +1 more source

Evolution of the Damping Ratio Considering Cyclic Confining Pressure Under Intermittent Cyclic Loading

open access: yesBuildings
The damping ratio is essential to conducting dynamic analysis for underground engineering under traffic loading. Variations in the damping ratio are usually studied using cyclic triaxial tests with continuous cyclic loading; however, intermittent loading
Juehao Huang   +5 more
doaj   +1 more source

Numerical and Experimental Study on Dummy Blade with Underplatform Damper

open access: yesMachines
To confirm the variation in damping ratio offered by dry friction dampers against structural vibration stress, this study developed a blade vibration response test system for capturing damping characteristic curves through both frequency sweep excitation
Di Li   +3 more
doaj   +1 more source

Equivalent Modal Damping Ratios of a Composite Tube-Type Tall Building to Dynamic Wind Loading

open access: yesShock and Vibration, 1996
This article discusses computing methods of the equivalent modal damping ratio for a composite tube-type tall building. The equivalent damping ratio of a composite structure under wind-induced vibrations encompasses the combined effects from the ...
B.C. Huang   +3 more
doaj   +1 more source

Comparison Between Damping Coefficients of Measured Perforated Micromechanical Test Structures and Compact Models

open access: yes, 2008
Measured damping coefficients of six different perforated micromechanical test structures are compared with damping coefficients given by published compact models.
De Pasquale, Giorgio   +2 more
core   +1 more source

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