Results 21 to 30 of about 361,673 (283)
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
core +1 more source
AIM/CD5L attenuates DAMPs in the injured brain and thereby ameliorates ischemic stroke [PDF]
Cell Reports, 2021 The sterile inflammation caused by damage-associated molecular patterns (DAMPs) worsens the prognosis following primary injury such as ischemic stroke. However, there are no effective treatments to regulate DAMPs. Here, we report that AIM (or CD5L) protein reduces sterile inflammation by attenuating DAMPs and that AIM administration ameliorates the ...
Maehara, Natsumi +8 more
openaire +4 more sources
Frequency-dependent attenuation and elasticity in unconsolidated earth materials: Effect of damping [PDF]
Geophysics, 2014 ABSTRACT We used the discrete element method (DEM) to understand the underlying attenuation mechanism in granular media, with special applicability to the measurements of the so-called effective mass developed earlier. We considered that the particles interacted via Hertz-Mindlin elastic contact forces and that the damping was ...
Hu, Yanqing +3 more
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On the Effect of Nonlinear Energy Sink Damping in Seismic Vibration Attenuation
Volume 10: 34th Conference on Mechanical Vibration and Sound (VIB), 2021 Abstract Nonlinear Energy Sinks (NESs) have been proposed for passively reducing the amplitude of vibrations in different types of structures. The main advantage of NES over traditional Tuned Mass Dampers (TMDs) lies in its capability to redistribute the vibrating energy inside a primary structure, what effectively reduces the amplitude of the ...
Eliot Motato, Fabio G. Guerrero
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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
doaj +1 more source
Damping modification factors for acceleration response spectra
Geodesy and Geodynamics, 2017 DMF (Damping modification factors) are used to modify elastic response spectral values corresponding to damping ratio 5% to other damping levels. The influence of seismological parameters (magnitude, epicentral distances and site conditions) on DMF for ...
Heng Li, Feng Chen
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Biological control via “ecological” damping: An approach that attenuates non-target effects [PDF]
Mathematical Biosciences, 2016 In this work we develop and analyze a mathematical model of biological control to prevent or attenuate the explosive increase of an invasive species population in a three-species food chain. We allow for finite time blow-up in the model as a mathematical construct to mimic the explosive increase in population, enabling the species to reach "disastrous"
Parshad, Rana D. +3 more
openaire +4 more sources
Dynamic Viscosity and Transverse Ultrasonic Attenuation of Engineering Materials
Applied Sciences, 2020 In this paper, ultrasonic attenuation of the transverse waves of engineering materials is evaluated, covering metals, ceramics, polymers, fiber-reinforced plastics, and rocks. After verifying experimental methods, 273 measurements are conducted and their
Kanji Ono
doaj +1 more source
Low frequency damping of metal panels in ambient Air [PDF]
, 2008 Mathematical models of structural dynamics are widely used and applied in many branches of science and engineering and it has been argued that many of the shortfalls with these models are due to the fact that the physics of joint dynamics are not ...
Paul Cunningham (1251771) +8 more
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Time-lapse seismic attenuation as a tool for monitoring hydrocarbons and CO2 in geological materials [PDF]
, 2011 Both laboratory experiments and theoretical models have shown seismic attenuation to be sensitive to various petrophysical properties of rock and pore fluids, making attenuation a potentially useful time-lapse attribute to measure and interpret through ...
Blanchard, Thomas David
core +6 more sources