A mathematical model for the magnetorheological materials and magneto reheological devices

Özsoy, Koray; Usal, Mustafa Reşit

doi:10.1016/j.jestch.2018.07.019

Cited by 12 publications

(16 citation statements)

References 26 publications

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“…In this section, an analytical model for an ER fluid valve system configuration consistent with 29 is modeled through the developed constitutive relation (22) in order to validate the same. In addition, the different velocity profiles are also predicted from the same constitutive equation ( 22) for different forms of shear viscosity in the parallel plate configuration.…”

Section: Resultsmentioning

confidence: 99%

“…To check the validity of constitutive relation (22) derived in section 3, we compare our theoretical result obtained from ( 22) at zero magnetic field with the existing experimental work performed by Kamelreiter et al 29 . Kamelreiter et al 29 designed an ER valve geometry to measure the field-dependent yield stress of a typical ER fluid.…”

Section: Experimental Validation Of the Constitutive Relationmentioning

confidence: 92%

“…Case-II: E perpendicular to H and parallel to V (28) to formulate the non-zero resulting components of the stress tensor from the generalized constitutive relation (22) as…”

Section: Case-iimentioning

confidence: 99%

“…Case-III: E perpendicular to H and normal to V Next, the obtained symmetric part of the velocity gradient tensor d from ( 25) is reused with the above defined field vectors (31) to formulate the non-zero resulting components of the stress tensor from the generalized constitutive relation (22) as…”

Section: Case-iiimentioning

confidence: 99%

“…However, in these models 5 , the electric field was treated as a constant field. In addition to the deformation modeling of ER fluid under external gradient, similar studies on the deformation modeling of MR fluid were also focused by the researchers 7,21,22 followed by similar approaches.…”

Section: Introductionmentioning

confidence: 99%

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Constitutive modeling of an electro-magneto-rheological fluid: A continuum mechanics approach

Kumar

Sarangi

2021

Preprint

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The present article deals with a continuum mechanics-based method to model an electro-magneto-rheological (EMR) fluid deformation under an electromagnetic field. The proposed method follows the fundamental laws of physics, including the principles of thermodynamics. We start with the general balance laws for mass, linear momentum, angular momentum, energy, and the second law of thermodynamics in the form of Clausius-Duhem inequality with Maxwell’s equations. Then, we derive the generalized constitutive relation for EMR fluids following the representation theorem. To validate of the same, the developed constitutive relation is applied to an electro-rheological fluid valve system. The analytical predictions of the considered system are consistent with the experimentation. At last, we simulate different velocity profiles from the developed constitutive relation in the case of the parallel plate configuration. As a result, we succeed in providing more physics-based analytical findings than the existing studies in the literature.

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Section: Resultsmentioning

confidence: 99%

Section: Experimental Validation Of the Constitutive Relationmentioning

confidence: 92%

“…Case-II: E perpendicular to H and parallel to V (28) to formulate the non-zero resulting components of the stress tensor from the generalized constitutive relation (22) as…”

Section: Case-iimentioning

confidence: 99%

Section: Case-iiimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Constitutive modeling of an electro-magneto-rheological fluid: A continuum mechanics approach

Kumar

Sarangi

2021

Preprint

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Study on the Influence of Temperature–Magnetic Field Coupling on the Mechanical Properties of Magnetorheological Fluids

Luo

et al. 2021

Physica Rapid Research Ltrs

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The composition of a magnetorheological fluid (MRF) usually includes magnetic particles, a carrier fluid, and additives. Among them, the magnetic particles and carrier fluid are the main sources of the mechanical properties of the MRF. The changes of the related properties of the two will affect the mechanical properties of the MRF directly or indirectly. Herein, first, the temperature–magnetic field characteristics are analyzed during the MRF working process. Then, the influence mechanism of temperature and magnetic field changes on the properties of the magnetic particles and carrier liquid are analyzed. On this basis, the traditional Bingham model is improved and optimized, in which the temperature variable is introduced to represent the effect of temperature–magnetic field coupling on the shear stress of the MRF. Finally, parameter fitting and simulation are carried out for the optimized model, and the self‐made shear stress of the MRF measuring device with temperature‐control function is used to experimentally verify the accuracy of the optimized model. The comparison and verification of the results show that the optimized model can better represent the variation of shear stress of an MRF with temperature and magnetic field than the traditional Bingham model.

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Optimization of Geometrical Parameters in Magnetorheological Dampers Using Finite Element Modeling

Asok¹,

Joshy²,

Suraj³

et al. 2022

Lecture Notes in Mechanical Engineering

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A mathematical model for the magnetorheological materials and magneto reheological devices

Cited by 12 publications

References 26 publications

Constitutive modeling of an electro-magneto-rheological fluid: A continuum mechanics approach

Constitutive modeling of an electro-magneto-rheological fluid: A continuum mechanics approach

Study on the Influence of Temperature–Magnetic Field Coupling on the Mechanical Properties of Magnetorheological Fluids

Optimization of Geometrical Parameters in Magnetorheological Dampers Using Finite Element Modeling

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