Results 11 to 20 of about 283,331 (301)

Shear modulus and damping ratio of a nonplastic silt at large shear strains [PDF]

open access: yesE3S 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
doaj   +1 more source

Health status identification of modular-block-reinforced soil retaining walls after earthquakes

open access: yesYantu 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
doaj   +1 more source

Experimental Study on the Dynamic Modulus and Damping Ratio of Compacted Loess under Circular Dynamic Stress Paths

open access: yesAdvances in Civil Engineering, 2021
Dynamic loads such as earthquakes and traffic will simultaneously generate vertical dynamic stress and horizontal shear stress in the foundation soil. When the vertical dynamic stress amplitude is twice the horizontal shear dynamic stress amplitude, and ...
Liguo Yang, Shengjun Shao, Zhi Wang
doaj   +1 more source

Modal damping ratio of symmetric laminate composite under the effect of attached mass using experimental design [PDF]

open access: yesFME Transactions, 2021
Nowadays, the use of composite materials has taken a large place in civilian industries as well as in military and aerospace industries. Therefore, significant investigations about their mechanical and physical properties are needed.
Abdelhafid Rahmane
doaj   +1 more source

On the robustness of the average power ratios in damping estimation: application in the structural health monitoring of composites beams [PDF]

open access: yes, 2010
In composites structures, cracking, delamination will cause changes in the measured dynamic response of structure and so on experimentally modal parameters.
Morlier, Joseph, Yin, H.P.
core   +3 more sources

Experimental Study of Awash Soil under Static and Cyclic Shear Loading

open access: yesAdvances in Civil Engineering, 2023
The dynamic soil properties (shear modulus and damping ratio) are of great importance for the analysis and design of geotechnical structures subjected to dynamic loads such as earthquake. Cyclic simple shear tests were conducted to study the variation of
Tigistu Abu Arficho, Argaw Asha Ashango
doaj   +1 more source

Experimental and computational evaluation of modal identification techniques for structural damping estimation [PDF]

open access: yesE3S Web of Conferences, 2022
The damping ratio is a key indicator of a structures susceptability to human discomfort due to dynamic loads. Computational models, wind tunnel studies and empirical data can provide estimates of the damping ratio of a structure.
Moore Hollie   +2 more
doaj   +1 more source

Comparative Analysis of Viscous Damping Model and Hysteretic Damping Model

open access: yesApplied Sciences, 2022
A damping model is one of the key factors in dynamic analysis. Viscous damping and hysteretic damping models are commonly used in structural damping models.
Qinglin Liu   +3 more
doaj   +1 more source

Research on Damping Characteristics of Interconnected Hydropneumatic Suspension considering the Effects of Hose and Check Valve

open access: yesShock and Vibration, 2021
The interconnected hydropneumatic suspension (ICHPS) has not only the nonlinear stiffness and damping of the independent hydropneumatic suspension (IDHPS) but also antiroll and antipitch functions.
Hongmin Zhang, Xin Fang
doaj   +1 more source

Study on Optimal Design of Grotto-Eave System with Cable Inerter Viscous Damper for Vibration Control

open access: yesBuildings, 2022
In this paper, the mechanical model of grotto–eave system with cable inerter viscous damper (CIVD) is established, and the vibration control equations are established. Firstly, the stochastic response is carried out, and the optimization design of design
Jizhong Huang   +4 more
doaj   +1 more source

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