Results 11 to 20 of about 15,143 (300)

VD-PQ; A Velocity-Dependent Viscous Damping Model for Wave-Structure Interaction Analysis

open access: yesJournal of Marine Science and Engineering, 2021
For the analysis and design of coastal and offshore structures, viscous loads represent one of the most influential parameters that dominate their response. Very commonly, the potential flow theory is used for identifying the excitation wave loads, while
Constantine Michailides
doaj   +1 more source

Monitoring of Liquid Viscosity for Viscous Dampers through a Wireless Impedance Measurement System

open access: yesApplied Sciences, 2021
Viscous dampers are a type of seismic damping equipment widely used in high-rise buildings and bridges. However, the viscosity of the damping fluid inside the viscous damper will change over time during its use, which significantly reduces the seismic ...
Sihui Jia, Mingzhang Luo
doaj   +1 more source

Viscous damping of rotation in Wendelstein 7-AS [PDF]

open access: yesPlasma Physics and Controlled Fusion, 2000
One of the main results of the Wendelstein 7-AS stellarator (major radius 2 m, average plasma radius 0.18 m, magnetic field 2.5 T, low shear) is the achievement of the H-mode confinement in ECR- and NBI-heated plasmas. There is a strong dependence on the external rotational transform; the H-mode confinement can be found only in a narrow window close to
Wobig, H., Kisslinger, J.
openaire   +2 more sources

Vibration analysis of elevator rope with vibration suppressors (Identification of flexural rigidity, viscous damping and structural damping)

open access: yesNihon Kikai Gakkai ronbunshu, 2021
When an elevator rope for a high-rise building is forcibly excited by the displacement of the building induced by wind force and/or by long-period ground motion, rope displacement becomes large even if the ground acceleration and the building ...
Hiroyuki KIMURA   +2 more
doaj   +1 more source

A General Rule for the Influence of Physical Damping on the Numerical Stability of Time Integration Analysis [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2018
The influence of physical damping on the numerical stability of time integration analysis is an open question since decades ago. In this paper, it is shown that, under specific very general conditions, physical damping can be disregarded when studying ...
Aram Soroushian
doaj   +1 more source

Influence of Internal Rubber Damper on Cable External Viscous Damper Effectiveness

open access: yesEng, 2022
In practice, the internal rubber dampers are widely installed inside the cable guide pipe between the external viscous damper and the cable anchorage. In order to study the effect of the internal damper on the performance of the external viscous damper ...
Changzhao Li   +5 more
doaj   +1 more source

On the interaction of exponential non-viscous damping with symmetric nonlinearities [PDF]

open access: yes, 2008
This paper studies the interaction between non-viscous damping and nonlinearities for nonlinear oscillators with reflection symmetry. The non-viscous damping function is an exponential damping model which adds a decaying memory property to the damping ...
Wagg, DJ   +6 more
core   +1 more source

A Study of the Hydrodynamic Performance of a Pitch-type Wave Energy Converter–Rotor

open access: yesEnergies, 2019
The effect of hydrodynamic performance of the wave energy converter (WEC)–rotor based on linear potential flow theory due to nonlinear viscous damping was investigated.
Sunny Kumar Poguluri   +2 more
doaj   +1 more source

Nonlinear Wave Evolution in Interaction with Currents and Viscoleastic Muds

open access: yesJournal of Marine Science and Engineering, 2021
A numerical model is extended to investigate the nonlinear dynamics of surface wave propagation over mud in the presence of currents. A phase-resolving frequency-domain model for wave-current interaction is improved to account for wave modulations due to
Elham Sharifineyestani, Navid Tahvildari
doaj   +1 more source

Collisional and viscous damping of MHD waves in partially ionized plasmas of the solar atmosphere [PDF]

open access: yes, 2004
Magnetohydrodynamic (MHD) waves are widely considered as a possible source of heating for various parts of the outer solar atmosphere. Among the main energy dissipation mechanisms which convert the energy of damped MHD waves into thermal energy are ...
Rucker, H. O. (Helmut O.)   +7 more
core   +1 more source

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