Results 171 to 180 of about 5,231 (215)

Magnetorheological fluid composites

Journal of Physics D: Applied Physics, 1996
An interesting extension in the use of magnetic fluids has resulted from the development of magnetic fluid composites obtained by dispersing micrometre-sized non-magnetic particles in a magnetic fluid. The composites possess a yield stress in a magnetic field which can be described at sufficiently high strain rates by the Bingham relation , where is ...
J Popplewell, R E Rosensweig
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Magnetorheologic fluids for actuators

Sensors and Actuators A: Physical, 2001
Abstract Magnetorheologic fluids (MRF) are suspensions consisting of a synthetic oil and very small soft-magnetic particles. In a magnetic field, the particles are locked to long chains. In consequence of it, the viscosity and the flow behaviour of the fluid are considerably changed.
L. Zipser, L. Richter, U. Lange
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Introduction to Magnetorheological Fluids

2023
Magnetorheological fluids are multiphase magnetizable suspensions with magnetic field-controllable mechanical properties. In this introductory chapter we revisit the physics behind the rheological response of these particular materials making special emphasis on the influence of magnetostatic and hydrodynamic forces.
J. R. Morillas, J. de Vicente
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Magnetorheological Fluid Applications

2016
Potential applications of MR fluids are summarized in those devices that need quick, continuous, and reversible transformation in rheological characteristics [1].
Abdollah Hajalilou, Saiful Amri Mazlan, Hossein Lavvafi, Kamyar Shameli   +3 more
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Thermogelling magnetorheological fluids

Smart Materials and Structures, 2013
A novel approach is proposed for the formulation of kinetically stable magnetorheological (MR) fluids exhibiting an MR effect. Thermoresponsive carrier fluids are used which develop a sol–gel transition on increasing the temperature. Turbidity measurements, multiwave rheology and steady shear flow tests are carried out on model conventional MR fluids ...
Keshvad Shahrivar, Juan de Vicente
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Rheology of a Magnetorheological Fluid

Journal of Intelligent Material Systems and Structures, 1996
We report on experimental investigations of the rheological behavior of aqueous magnetic suspensions. The suspended particles are monodisperse colloidal polystyrene spheres which contain magnetic Fe203-grains. In the absence of a magnetic field these suspensions behave as Newtonian fluids, whereas under the influence of a magnetic field due to the ...
D. W. Felt, M. Hagenbuchle, J. Liu, J. Richard   +3 more
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Behavior of Magnetorheological Fluids

MRS Bulletin, 1998
In the absence of an applied magnetic field, magnetorheological (MR) fluids typically behave as nearly ideal Newtonian liquids. The application of a magnetic field induces magnetic dipole and multipole moments on each particle. The anisotropic magnetic forces between pairs of particles promote the head-to-tail alignment of the moments and draws the ...
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Flow of Magnetorheological Fluids

Journal of Intelligent Material Systems and Structures, 2001
For efficiently describing the flow of magnetorheological fluids (MRFs), a feasible model based on the Bingham equation is presented. It allows the determination of rheological parameters from parameters attained with a measuring equipment working in the flow mode.
U. Lange, L. Richter, L. Zipser
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MAGNETORHEOLOGICAL FLUID FAN DRIVE FOR TRUCKS

Electrorheological Fluids and Magnetorheological Suspensions, 2007
A magnetorheological fluid (MRF) fan drive prototype for automotive truck application is designed and tested for both performance and durability. A dual concentric gap with drum rotor design is chosen to meet the required torque capacity, packaging, and mass constraints.
Anthony L. Smith, John C. Ulicny, Lawrence C. Kennedy   +2 more
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Scaling in the aggregation dynamics of a magnetorheological fluid

Physical Review E, 2007
We present experimental results on the aggregation dynamics of a magnetorheological fluid, namely, an aqueous suspension of micrometer-sized superparamagnetic particles, under the action of a constant uniaxial magnetic field using video microscopy and image analysis.
P, Domínguez-García, Sonia, Melle, J M, Pastor, M A, Rubio   +3 more
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