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Prediction models and associated uncertainty for dynamic shear modulus and damping ratio of Beijing silty clay [PDF]

open access: yesScientific Reports
Based on experimental data of normalized shear modulus and damping ratio from undisturbed silty clay within 120 m depth in the Beijing area, the Davidenkov backbone curve is used to characterize the normalized shear modulus curve, and the damping ratio ...
Yi Fang   +7 more
doaj   +2 more sources

Experimental study on cyclic shear stiffness and damping ratio of carbonate sand-steel interface

open access: goldRock and Soil Mechanics, 2020
The dynamic response of carbonate sand-steel interface is of great significance to the safety and stability of the structure foundations which are constructed under reef geotechnical conditions.
RUI Sheng-jie   +4 more
doaj   +2 more sources

Damping Ratio Estimation of Heavily Damped Structures Using State-Space Modal Responses. [PDF]

open access: yesSensors (Basel)
Vibration control systems are extensively utilized in structures to enhance their resilience against earthquakes and wind forces. However, structures with significant damping exhibit atypical damping behaviors, which impose constraints on the effectiveness of traditional modal analysis methods for discerning modal responses and estimating properties ...
Noh J, Hwang JS, Valluzzi MR.
europepmc   +3 more sources

Estimation of the Damping Ratio of the Coupled System Based on the Damping Ratios of Two 1-Dof Systems

open access: bronzeJournal of System Design and Dynamics, 2008
A number of different structures in industrial facilities are installed on supports. There is the case that the damage occurs by the coupled vibration. The response magnification is obtained from the modal natural frequency and the modal damping ratio of the coupled system in the seismic design.
Tetsuya Watanabe   +2 more
openalex   +4 more sources

A unified damping ratio-based model for cyclic mobility simulation of soils and its application to nonlinear site response analysis

open access: goldApplied Ocean Research
Damping ratio and cyclic mobility are critical dynamic properties of soils subjected to cyclic loadings, while few attempts have been devoted to simultaneously simulating them in practical cyclic models.
M. Wu, Y.G. Wang
doaj   +2 more sources

Analysis of Damping Ratio of Foot-bridges

open access: bronzeJournal of the Korean Association for Spatial Structures, 2014
Sung-Won Yoon, Sang-Hyouen Moon
openalex   +3 more sources

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

Investigation of the effects of value and modeling approach of natural damping on nonlinear responses of low rise moment-resisting steel frames [PDF]

open access: yesJournal of Structural and Construction Engineering, 2021
Nonlinear time history analysis is recognized as the most appropriate tool for assessing the real behaviour of structures during seismic excitations. Validity rate of obtained results from this analysis significantly depends to the modeling, details and ...
Saman Rahat Dahmardeh   +2 more
doaj   +1 more source

Influence of Vertical Equivalent Damping Ratio on Seismic Isolation Effectiveness of Nuclear Reactor Building

open access: yesEnergies, 2021
This paper aimed at evaluating the influence of different vertical equivalent damping ratios of a 3-dimensional combined isolation bearing (3D-CIB) as regards seismic response and isolation effectiveness.
Xiuyun Zhu, Jianbo Li, Gao Lin, Rong Pan
doaj   +1 more source

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