Results 21 to 30 of about 4,350 (261)

Electrorheological fluids [PDF]

open access: yes, 1996
An Electrorheological fluid is normally a low-viscosity colloidal suspension, but when an electric field is applied, the fluid undergoes a reversible transition to a solid, being able to support considerable stress without yield. Commercial possibilities for such fluids are enormous, including clutches, brakes, valves,shock absorbers, and stepper ...
Adolf, D.   +6 more
openaire   +2 more sources

Precisely controlled microdroplet merging by giant-electrorheological-fluid-based microvalve

open access: yesAIP Advances, 2022
A microfluidic device with a microvalve incorporated with intelligent giant electrorheological fluid (GERF) was proposed to actively and accurately control micro-droplet merging in various droplet scales.
Zheng Yang   +6 more
doaj   +1 more source

The origin of interparticle potential of electrorheological fluids [PDF]

open access: yes, 2013
The particles of electrorheological fluids can be modelled as dielectric spheres (DS) immersed in a continuum dielectric. When an external field is applied, polarization charges are induced on the surfaces of the spheres and can be represented as point ...
Boda, D., Szalai, I., Valiskó, M.
core   +4 more sources

Convergence Analysis for a Finite Element Approximation of a Steady Model for Electrorheological Fluids [PDF]

open access: yes, 2015
In this paper we study the finite element approximation of systems of $p(\cdot)$-Stokes type, where $p(\cdot)$ is a (non constant) given function of the space variables. We derive --in some cases optimal-- error estimates for finite element approximation
Berselli, Luigi C.   +2 more
core   +3 more sources

Limit cycle behavior of smart fluid dampers under closed loop control [PDF]

open access: yes, 2005
Semiactive vibration dampers offer an attractive compromise between the simplicity and fail safety of passive devices, and the weight, cost, and complexity of fully active systems.
Sims, N.D.
core   +1 more source

The role of adsorbed water on TiO2 particles in the electrorheological effect

open access: yesAIP Advances, 2018
TiO2 particles prepared by the hydrolysis of titanium butoxide adsorb water molecules with different adsorption energies. The electrorheological (ER) fluid composed of TiO2 particles behaves as the polar-molecule giant electrorheological (GER) fluid at ...
Zhaohui Qiu   +6 more
doaj   +1 more source

ELECTRORHEOLOGICAL PROPERTIES OF BIODEGRADABLE CHITOSAN/EXPANDED PERLITE COMPOSITES

open access: yesJournal of the Turkish Chemical Society, Section A: Chemistry, 2016
In this study, chitosan (CS)/expanded perlite (EP) composites with different chitosan fractions (10%, 20% and 50%) were prepared by absorbing chitosan into porous networks of expanded perlite, as a new hybrid smart electrorheological (ER) material ...
Mehmet Çabuk
doaj   +1 more source

Electrorheological fluids [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1990
Electrorheological fluids (ER fluids) are suspensions of fine particles dispersed in an insulating fluid. If the properties of the particles and the fluid are selected properly, the resulting ER fluid can have the remarkable ability to flow like a liquid in its normal state, yet freeze into a gel in an electric field.
openaire   +1 more source

Apparent stress-strain relationships in experimental equipment where magnetorheological fluids operate under compression mode [PDF]

open access: yes, 2008
: This paper presents an experimental investigation of two different magnetorheological ( MR) fluids, namely, water-based and hydrocarbon-based MR fluids in compression mode under various applied currents.
A G Olabi   +9 more
core   +1 more source

High-order Analysis of Linear Vibrations of a ModeratleyThick Sandwich Panel With an Electrorheological Core [PDF]

open access: yesMechanics of Advanced Composite Structures, 2020
In this study, the frequency response of rectangular sandwich plates with multi-layer face sheets and electrorheological (ER) fluid cores is investigated. The assumed electro-rheological fluid as a core is capable of changing the stiffness and damping of
Mehdi Keshavarzian   +4 more
doaj   +1 more source

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