Results 21 to 30 of about 911,047 (294)

Effect of Re-vibration Process on Axial Capacity of Short Reinforced Concrete Circular Columns [PDF]

open access: yesEngineering and Technology Journal, 2017
A considerable amount of research work has been performed on the effects of vibrating of fresh concrete on the reduction of shrinkage and creep, the improvement bond stress between reinforcing bar and concrete, reduction the concrete permeability and ...
S.A. Abbas
doaj   +1 more source

Improving seismic resistance using absorbing nodes [PDF]

open access: yesE3S Web of Conferences, 2023
A flexible gusset is a device that improves the seismic resistance and energy dissipation capacity of a structure. To achieve these solo vibration characteristics, the flexible gusset is designed to remain elastic, resulting in reduced vibration to the ...
Skachkov S. V., Kotenko M. P.
doaj   +1 more source

Vibration Damping in Bolted Friction Beam-Columns [PDF]

open access: yesVolume 1: 22nd Biennial Conference on Mechanical Vibration and Noise, Parts A and B, 2009
In this paper we consider dynamic friction within a bolted structure deliberately used to improve damping properties of engineering structures. The model considered for this paper consists of two steel beam-columns bolted together allowing dynamic friction to occur at the interface.
Bournine, Hadjila, Wagg, DJ, Neild, SA
openaire   +3 more sources

Interstitial gas effect on vibrated granular columns [PDF]

open access: yesPhysical Review E, 2014
Vibrated granular materials have been intensively used to investigate particle segregation, convection, and heaping. We report on the behavior of a column of heavy grains bouncing on an oscillating solid surface. Measurements indicate that, for weak effects of the interstitial gas, the temporal variations of the pressure at the base of the column are ...
Pastenes, Javier   +2 more
openaire   +3 more sources

Analysis of vibration performance of combined long columns based on characteristic frequencies of hydrogenerator

open access: yesShuili Shuiyun Gongcheng Xuebao, 2018
In order to improve the usability and seismic performance of the structures in hydropower station, taking the characteristic frequency of the hydrogenerator as the key parameter index, the modal analysis and resonance check of 4 models including ...
HU Shaowei   +3 more
doaj   +1 more source

Vibration Transmission across Seismically Damaged Beam-to-Column Junctions of Reinforced Concrete Using Statistical Energy Analysis

open access: yesVibration, 2023
To detect human survivors trapped in buildings after earthquakes by using structure-borne sound it is necessary to have knowledge of vibration transmission in collapsed and fragmented reinforced-concrete buildings.
Marios Filippoupolitis, Carl Hopkins
doaj   +1 more source

Non-linear dependency of the subjective perceived intensity of steering wheel rotational vibration [PDF]

open access: yes, 2009
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2009 ElsevierThe present study has established equal sensation curves for steering wheel hand-arm rotational vibration ...
Giacomin J.   +3 more
core   +1 more source

Simulation of Inhomogeneous Columns of Beads under Vertical Vibration [PDF]

open access: yesMathematical Problems in Engineering, 2009
We present results from computational experiments of one‐dimensional inhomogeneous granular column. With characteristic properties lying between those of liquids and solids, this class of material consists of assemblies of solid particles which interact via mechanical forces (contact and friction) and are maintained together by a gravitational field ...
Carneiro, Marcus V.   +2 more
openaire   +2 more sources

Study of Bubble Size, Void Fraction, and Mass Transport in a Bubble Column under High Amplitude Vibration

open access: yesChemEngineering, 2018
Vertical vibration is known to cause bubble breakup, clustering and retardation in gas-liquid systems. In a bubble column, vibration increases the mass transfer ratio by increasing the residence time and phase interfacial area through introducing kinetic
Shahrouz Mohagheghian   +3 more
doaj   +1 more source

Vibration reduction and isolation performance of a platform foundation and column base of an ancient wooden structure based on the energy transfer analysis

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2022
Wooden structures, as the most representative structural types of the ancient Chinese architecture, are very common and have a long history. The special construction methods adopted in ancient wooden structures, such as the platform foundations and ...
Cheng Zhang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy