Results 21 to 30 of about 851,722 (286)

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

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

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

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

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

Effects of gender differences on the subjective perceived intensity of steering wheel rotational vibration based on a multivariate regression model [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 aims of this study were to determine equal sensation curves for hand-arm steering wheel rotational vibration ...
Giacomin, J, Ajovalasit, M, Jeon, BH
core   +1 more source

Effects of Rashig rings placed in interplate spaces and the rheological properties of the liquid phase on power consumption in a gassed reciprocating plate column [PDF]

open access: yesHemijska Industrija, 2003
The power consumption in a gassed reciprocating plate column with Rashig rings placed in interplate spaces increases with both increasing vibration intensity and content of solid particles but decreases with increasing the superficial gas velocity ...
Aleksić Mirko Đ.   +4 more
doaj   +1 more source

The reasonableness and feasibility of replacing standing wave vibration with air piston mode vibration in thermoacoustic refrigerator

open access: yesHeliyon
On the basis of analyzing the longitudinal forced vibration of the gas column in the resonator of a half-wavelength standing wave thermoacoustic refrigerator, the idea of replacing the standing wave vibration with the first-order piston mode vibration of
Jianxin Wang, Xiangbin Liu
doaj   +1 more source

Method Improvements of Testing Modulus of Soil Based on Free-Vibration Column

open access: yesAdvances in Civil Engineering, 2019
It is difficult to directly measure the dynamic elastic modulus of soils when the strain is less than 10−4, though the dynamic shear modulus can be easily obtained by the free-vibration testing method.
Dandan Jin   +4 more
doaj   +1 more source

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