Results 11 to 20 of about 283,093 (346)
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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Modal damping ratio of symmetric laminate composite under the effect of attached mass using experimental design [PDF]
FME 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
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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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Damping ratio estimation using hybrid methods [PDF]
Mechanical Systems and Signal Processing, 1990 Abstract Much effort has been expended in attempts to estimate dynamic response parameters of structures. Damping ratios have been estimated with varying degrees of success. Some of this effort has been motivated by active research and development of structural integrity monitoring systems, for design purposes, accurate estimates of damping ratios ...
Shen, Chien-Chih, Liou, Cheng-Yuan
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Advances 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
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Comparative Analysis of Viscous Damping Model and Hysteretic Damping Model
Applied 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
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Experimental and computational evaluation of modal identification techniques for structural damping estimation [PDF]
E3S 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
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Towards a Simple Model of Compressible Alfvenic Turbulence [PDF]
, 1997 A simple model collisionless, dissipative, compressible MHD (Alfvenic) turbulence in a magnetized system is investigated. In contrast to more familiar paradigms of turbulence, dissipation arises from Landau damping, enters via nonlinearity, and is ...
A. Chekhlov +28 more
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Experimental Study of Awash Soil under Static and Cyclic Shear Loading
Advances 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
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