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Prediction models and associated uncertainty for dynamic shear modulus and damping ratio of Beijing silty clay [PDF]
Scientific ReportsBased 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
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Yantu gongcheng xuebao, 2022 Traffic loading is usually simulated by single cyclic deviator stress. However, the vertical normal stress and horizontal stress acting on the soil elements are all varied cyclically under the traffic loading.
HUANG Jue-hao 1, 2, CHEN Jian 1, 2, 3, YU Song 4, YAN Xiao-ling 5, 1, ZHAO Yong-feng 4, FU Xiao-dong 1, 2, MA Chao 1
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Time-Domain Calculation Method of an Equivalent Viscous Damping Model Based on Complex Damping Model
Shanghai 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
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Energies, 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
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Investigation of the effects of value and modeling approach of natural damping on nonlinear responses of low rise moment-resisting steel frames [PDF]
Journal 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
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International Journal of Naval Architecture and Ocean Engineering, 2022 The hydrodynamic damping characteristics of elastic rotating propeller blades are investigated theoretically and experimentally. Firstly, the modal hydrodynamic damping ratio of propeller blade rotating in water is theoretically predicted based on the ...
Hongyang Chen +3 more
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Experimental Study on Damping Ratio Characteristics of Loose Silty Fine Sand at Different Saturations [PDF]
长江科学院院报[Objective] Current research on the damping ratio evolution of silty fine sand under varying saturation conditions remains relatively limited, and in particular, systematic investigations revealing the mechanisms by which saturation variations influence ...
YU Song, XU Meng-bing, FENG Zhi-guo, ZHANG Jun-jie, ZHANG Guo-chao, WANG Yong
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Shear modulus and damping ratio of a nonplastic silt at large shear strains [PDF]
E3S Web of Conferences, 2019 Site response analyses and solution of dynamic soil-structure interaction problems need determination of variation of shear modulus and damping ratio with shear strain.
Sezer Alper +2 more
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Health status identification of modular-block-reinforced soil retaining walls after earthquakes
Yantu gongcheng xuebao, 2023 Distribution of dynamic characteristics (natural frequency and damping ratio) of large-scale shaking table model tests on a reinforced soil retaining wall (RSRW) under different working conditions is analyzed by using the time-domain identification ...
LI Sihan 1, 2, 3, CAI Xiaoguang 2, 3, 4, JING Liping 1, 5, CAI Boyuan 1, 3, HUANG Xin 1, 2, 3, XU Honglu 5
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A Damping Ratio Bound for Networks of Masses and Springs [PDF]
2020 European Control Conference (ECC), 2020 The damping ratio is a key performance measure in systems that can be modelled as networks of masses and springs. We derive a lower bound on this quantity that applies to such networks when the masses are subject to viscous damping. The result allows the size of the damping ratio to be understood as a function of the system parameters.
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