Study of a magnetorheological fluid submitted to a uniform magnetic field

Fonseca, H.; González, Edgar; Restrepo, J.

doi:10.1088/1742-6596/935/1/012038

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…As reported by Fonseca et al (2017), two types of magnetic liquids can be distinguished depending on the particle size: ferrofluids, produced on the basis of particles with a diameter of several nanometers, and magnetorheological liquids, which contain particles of several micrometers in size. Molecules of ferromagnetic liquids contain single magnetic domains, therefore, their behavior is significantly different from that of magnetorheological liquids, and this is directly related to their use in various technical applications.…”

Section: Introductionmentioning

confidence: 98%

Investigation of the properties of selected magnetorheological fluids

Fenyk

Horak

Zieliński

et al. 2022

Journal of Intelligent Material Systems and Structures

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The paper presents the results of research on the rheological properties of magnetorheological (MR) fluids with different physical and chemical compositions. The research concerned complete compositions of MR fluids as well as base fluids (samples containing no particles with ferromagnetic properties). Magnetorheological fluids consisted mainly of a carrier liquid in the form of glycerin or OKS 352 silicone oil, with magnetite or iron pentacarbonyl particles. The paper demonstrates the effect of the selection of individual components of the MR fluids on their rheological properties, paying attention to the interaction of the base liquid with the particles of the solid phase of the MR fluid. Under the conditions of exposure to a magnetic field, the type of ferromagnetic particles (their magnetic properties) have a decisive impact on the magnetorheological response of the fluid (change in rheological properties due to the effect of the magnetic field on the fluid). The magnetite-based samples showed a tangential stress of 1000 Pa, while the use of iron carbonyl allowed to obtain approximately 8000 Pa (with respect to the case where B = 500 mT, [Formula: see text]). No significant differences in rheological properties were recorded between the oleic acid- and silica-stabilized samples.

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Section: Introductionmentioning

confidence: 98%

Investigation of the properties of selected magnetorheological fluids

Fenyk

Horak

Zieliński

et al. 2022

Journal of Intelligent Material Systems and Structures

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“…They found that the use of this substance in dampers helps to reduce vibrations. Fonseca et al [6] worked on rheological characteristics and features of an MRF under a uniform magnetic field. They investigated the viscosity, shear stress, and formation of the MRF subjected to different magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

Analysis of torsional buckling of a cylindrical sandwich shell with a magnetorheological fluid core layer

Kashipazha,

Kheirikhah,

Meshkinabadi

2024

Smart Mater. Struct.

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This study is an attempt to analyze the torsion buckling of a structure consisting of a cylindrical sandwich shell with two isotropic face sheets that surround a magnetorheological fluid (MRF) core layer. In this analysis, the simply supported boundary conditions were considered for the edges of the face sheets and the core layer. The components of displacement were calculated using the first-order shear deformation theory (FSDT), and the governing equations were derived using Hamilton’s principle and were solved drawing upon the Galerkin method. The parameters of interest were magnetic field, buckling analysis, torsional buckling convergence, h/L ratio, ht/h ratio, and rt/L ratio. The equations obtained from MATLAB were verified using ABAQUS owing to the absence of any similar study in the existing literature. A good agreement was observed in terms of torsional buckling, indicating the robustness of the proposed structure. As smart sandwich structures are broadly used in robotics and aerospace, this structure can be a good choice thanks to its lightness (resulting from the thinness of the face sheets and hollowness) and strength and resistance (contributed by MRF core layer), which can be modified with the application of different magnetic fields.

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“…To maximize the MR effect, the base liquid should have low viscosity. In a publication by [19], it was observed that due to the application of an external magnetic field, magnetic particles are aggregated along the direction of the field lines, forming a chainlike structure. The chain structures increase the apparent viscosity of the fluid, causing a change from a liquid state to a solid-like state within milliseconds.…”

Section: Introductionmentioning

confidence: 99%

Investigation the Effect of MR Fluid Composition on Properties at Low Strain Ranges

Fenyk,

Horak,

Zieliński

2023

Materials

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The paper presents the results of eight magnetorheological (MR) fluids of different compositions. Magnetite and carbonyl iron were used as magnetic particles. MR fluids based on glycerin and OKS 352 oil were produced using stabilizers in the form of oleic acid and Aerosil 200 (Evonik Resource Efficiency GmbH, Hanau, Germany) silica; additives such as graphite and yellow dextrin were also used. The aim of the study was to determine the properties of various combinations of components on the dynamic properties of MR fluids, i.e., properties characterizing the fluid within the range of low deformations, as well as to investigate the effect of different compositions on structural yield stress and flow stress prepared MR fluids at different magnetic field induction values.

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Study of a magnetorheological fluid submitted to a uniform magnetic field

Cited by 4 publications

References 7 publications

Investigation of the properties of selected magnetorheological fluids

Investigation of the properties of selected magnetorheological fluids

Analysis of torsional buckling of a cylindrical sandwich shell with a magnetorheological fluid core layer

Investigation the Effect of MR Fluid Composition on Properties at Low Strain Ranges

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