Validation of Equivalent Viscous Damping Methodologies
, 2010 To obtain accurate predictions of the satellite dynamic environment it is therefore essential that the damping of the system is correctly defined and taken into account within the resolution methodologies for the Coupled Loads Analysis (CLA). When working with Finite Element Models, the damping of the materials is characterized by structural damping ...
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Deep Underground Science and Engineering, EarlyView.This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu +8 more
wiley +1 more source
A Review of Pavement Damping Characteristics for Mitigating Tire-Pavement Noise: Material Composition and Underlying Mechanisms. [PDF]
Materials (Basel)Liu M, Duan W, Dong R, Al-Ammari M.
europepmc +1 more source
Seismic analysis and design of tunnels within fault ground: A review
Deep Underground Science and Engineering, EarlyView.The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang +6 more
wiley +1 more source
Effects of strong parametric excitation on cantilever beam: non-perturbative approach. [PDF]
Sci RepMoatimid GM, Amer TS, Elagamy K.
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A bilayer protection approach is proposed for slowing down the surface potential decay of thin films of spontaneously‐polarized electret materials. The electret and the protective films are characterized, and the protection effectiveness is investigated under the effects of light illumination, water contact and mechanical impact.
Seyedali Sabzpoushan +2 more
wiley +1 more source
Estimating stiffness and damping of a novel variable impedance actuator based on adjusting viscoelastic properties of thermoresponsive polycaprolactone in harmonic motions. [PDF]
Sci RepExley T, Johnson D, Jafari A.
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Nonlinear Response‐History Analyses of Masonry and Mixed Structures With HybriDFEM
Earthquake Engineering &Structural Dynamics, EarlyView.ABSTRACT The hybrid discrete‐finite element (HybriDFEM) method, previously developed to perform static and modal analysis in discrete and coupled discrete‐finite element models, is extended to nonlinear response‐history analyses. The equations of motion for the HybriDFEM model are solved through various numerical time‐integration schemes, both explicit
Igor Bouckaert +2 more
wiley +1 more source
The influence of infrapatellar fat pad resection on knee joint friction and damping: An in vitro study in New Zealand white rabbits. [PDF]
J Mech Behav Biomed MaterClayton WJ +5 more
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Wall structure and material properties cause viscous damping of swimbladder sounds in the oyster toadfish Opsanus tau. [PDF]
Proc Biol Sci, 2016 Fine ML +4 more
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