Results 21 to 30 of about 283,093 (346)

Study on Optimal Design of Grotto-Eave System with Cable Inerter Viscous Damper for Vibration Control

open access: yesBuildings, 2022
In this paper, the mechanical model of grotto–eave system with cable inerter viscous damper (CIVD) is established, and the vibration control equations are established. Firstly, the stochastic response is carried out, and the optimization design of design
Jizhong Huang   +4 more
doaj   +1 more source

A Kinetic Alfven wave cascade subject to collisionless damping cannot reach electron scales in the solar wind at 1 AU [PDF]

open access: yes, 2010
(Abridged) Turbulence in the solar wind is believed to generate an energy cascade that is supported primarily by Alfv\'en waves or Alfv\'enic fluctuations at MHD scales and by kinetic Alfv\'en waves (KAWs) at kinetic scales $k_\perp \rho_i\gtrsim 1 ...
Cranmer   +16 more
core   +1 more source

Research on Damping Characteristics of Interconnected Hydropneumatic Suspension considering the Effects of Hose and Check Valve

open access: yesShock and Vibration, 2021
The interconnected hydropneumatic suspension (ICHPS) has not only the nonlinear stiffness and damping of the independent hydropneumatic suspension (IDHPS) but also antiroll and antipitch functions.
Hongmin Zhang, Xin Fang
doaj   +1 more source

An Investigation on the Damping Ratio of Marine Oil Slicks in Synthetic Aperture Radar Imagery

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The damping ratio has recently been used to indicate the relative internal oil thickness within oil slicks observed in synthetic aperture radar (SAR) imagery.
Cornelius Quigley   +2 more
doaj   +1 more source

The sound damping constant for generalized theories of gravity [PDF]

open access: yes, 2009
The near-horizon metric for a black brane in Anti-de Sitter (AdS) space and the metric near the AdS boundary both exhibit hydrodynamic behavior. We demonstrate the equivalence of this pair of hydrodynamic systems for the sound mode of a conformal theory.
Brustein, Ram, Medved, A. J. M.
core   +1 more source

Study on Parameters’ Influence and Optimal Design of Tuned Inerter Dampers for Seismic Response Mitigation

open access: yesBuildings, 2022
In this paper, parameter analyses of a tuned inerter damper (TID) are carried out based on the displacement mitigation ratio. The optimal design of TID based on the closed-form solution method is carried out and compared with the fixed-point method ...
Ruoyu Zhang   +4 more
doaj   +1 more source

Finite Element Modelling and Simulation of the Hysteretic ‎Behaviour of Single- and Bi-metal Cantilever Beams using a ‎Modified Non-linear Beta-damping Model [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
This paper explores a novel non-linear hysteresis model obtained from the modification of the conventional Kelvin-Voigt model, to produce a non-viscous hysteretic behaviour that is closer to metal damping. Two case studies are carried out for a vibrating
Hamza Tariq   +3 more
doaj   +1 more source

Significance of low energy impact damage on modal parameters of composite beams by design of experiments [PDF]

open access: yes, 2009
This paper presents an experimental study on the effects of multi-site damage on the vibration response of composite beams damaged by low energy impacts around the barely visible impact damage limit (BVID).
A Shahdin   +9 more
core   +5 more sources

Enhancing stability control of Phase-Locked loop in weak power grids

open access: yesInternational Journal of Electrical Power & Energy Systems
This paper analyzes the factors affecting the stability of phase-locked loops (PLLs) in weak power grids. By establishing a PLL model in weak power grids, it is found that line impedance, grid frequency disturbances, and output power all have an impact ...
Andong Liu, Hongbo Cao, Jun Liu
doaj   +1 more source

Bridge Damping Extraction Method from Vehicle–Bridge Interaction System Using Double-Beam Model

open access: yesApplied Sciences, 2021
When vehicles interact with a bridge, a vehicle–bridge interaction (VBI) system is created. The frequency and modal shape of VBI systems have been widely studied, but the damping of VBI systems has not been adequately investigated.
Fengzong Gong   +3 more
doaj   +1 more source

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