Damping System Designs using Nonlinear Frequency Analysis Approach [PDF]
, 2012 The main purpose of this thesis focuses on the investigation of the frequency domain analysis and design approaches for nonlinear damping systems. With the development of modern mechanical and civil engineering structures, the vibration control has ...
Guo, Pengfei
core +6 more sources
Modelling of coupled cross-flow/in-line vortex-induced vibrations using double Duffing and van der Pol oscillators [PDF]
, 2012 Many studies have typically applied a linear structural spring–mass–damper oscillator and a van der Pol wake oscillator to model a one-dimensional cross-flow vortex-induced vibration (VIV).
Zanganeh, Hossein, Srinil, Narakorn
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On the robustness of the average power ratios in damping estimation: application in the structural health monitoring of composites beams [PDF]
, 2010 In composites structures, cracking, delamination will cause changes in the measured dynamic response of structure and so on experimentally modal parameters.
J. Morlier +4 more
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Effects of Damping and Reynolds Number on Vortex-Induced Vibrations [PDF]
, 2007 Vortex-induced vibrations have been studied experimentally with emphasis on damping and Reynolds number effects. Our system was an elastically-mounted rigid circular cylinder, free to oscillate only transverse to the flow direction, with very low ...
Klamo, Joseph Thomas
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Computation of Aerodynamic Damping for Flutter Analysis of a Transonic Fan [PDF]
, 2011 This paper describes the computational analysis of aerodynamic damping for prediction of flutter characteristics of a transonic fan stage that consists of a highly loaded rotor along with a tandem stator.
Parthasarathy Vasanthakumar +1 more
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Decomposition of process damping ratios and verification of process damping model for chatter vibration [PDF]
Measurement, 2012 In the previous study, by the same authors, titled ‘‘A new process damping model (PDM) for chatter vibration (Measurement, 44 (8) (2011) 1342–1348)’’, a new approach has been presented for obtaining process damping ratios (PDRs). This PDM has been constituted on the basis of the shear angle ðuÞ oscillations of the cutting tool and the alteration of the
Türkeş, Erol +3 more
openaire +5 more sources
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
doaj +1 more source
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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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 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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