Dynamic behavior of sandwich beams with different compositions of magnetorheological fluid core

Acharya, Subash; Allien, Vipin J; Puneet, N. P.; Kumar, Hemantha

doi:10.1080/19475411.2020.1871104

Cited by 10 publications

(7 citation statements)

References 29 publications

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“…The rheological properties depend on the percentage of CI particles in the MR fluid [27,32,37]. The storage modulus and loss factor for two MR fluid samples with respect to frequency are shown in Figures 9(a The results show that the storage modulus value is higher for the MRF-II sample compared to the MRF-I sample.…”

Section: Volume Fraction Dependent Rheological Propertiesmentioning

confidence: 99%

“…The straincontrolled rheometer was used to analyze the viscoelastic parameters of the MR fluids. The influence of particle size distribution, volume fraction percentage and applied field on the rheological parameters are reported [27][28][29][30][31][32][33][34][35][36]. Though few studies exist on commercially available MR fluids, the rheological tests on the in-house prepared MR fluids are important because they are cost-effective.…”

Section: Introductionmentioning

confidence: 99%

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Rheological Properties of the In-house Prepared Magneto-rheological Fluid in the Pre-yield Region

Nagiredla

Joladarashi

Kumar

2022

IJE

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The essence of the present work is to study the rheological properties of the in-house prepared magnetorheological (MR) fluids in the pre-yield region since the rheological properties play a vital role in better understanding of vibration damping capabilities of MR fluids. In the present work, two different compositions of MR fluid samples were prepared with 24 and 30 volume percentages of carbonyl iron (CI) particles. Prepared MR fluid samples contain CI particles as a dispersive medium, silicone oil as a carrier fluid and white lithium grease as an anti-settling agent. The oscillating driving frequency and amplitude strain sweep tests are performed to investigate the rheological properties within the pre-yield region. The influences of driving frequency, strain amplitude, magnetic field and CI particles volume percentage on the rheological properties of the prepared MR fluids were assessed. The linear viscoelastic region of the prepared MR fluid sample was identified and the yield strain obtained was around 0.371%. It is observed that the volume percentage of CI particles in the MR fluid strongly influenced the rheological properties.

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Section: Volume Fraction Dependent Rheological Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Rheological Properties of the In-house Prepared Magneto-rheological Fluid in the Pre-yield Region

Nagiredla

Joladarashi

Kumar

2022

IJE

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“…Acharya et al fabricated six different sandwich beams with different particle sizes and weight fractions of carbonyl iron powder (CIP). Through sinusoidal excitation tests, they determined that sandwich beams with a larger particle size and a higher weight fraction of CIP exhibited an increased damping ratio and vibration suppression [9]. Vazquez and Kauffman proposed an updated analytical model to measure sandwich beams containing MR fluid as core materials, where the modal and transient properties were related to the stiffness of the shear modulus at various magnetic-field intensities [10].…”

Section: Mr Sandwich Structurementioning

confidence: 99%

Applications of Magnetorheological Fluid Actuator to Multi-DOF Systems: State-of-the-Art from 2015 to 2021

Sohn

Choi

2022

Actuators

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This review article presents various multi-DOF application systems that utilize smart magnetorheological (MR) fluid. It is well known that MR fluid has been actively studied and applied in many practical systems such as vehicle suspension dampers. The design requirements for the effective applications of MR fluid include geometry optimization, working principles, and control schemes. The geometry optimization is mostly related to the size minimization with high damping force, while the working principles are classified into the shear mode, the flow mode, and the squeeze mode depending on the dominant dynamic motion of the application system. The control schemes are crucial to achieve final targets such as robust vibration control against disturbances. It should be addressed that advanced output performances of MR application systems heavily depends on these three requirements. This review article presents numerous application systems such as sandwich structures, dampers, mounts, brakes, and clutches, which have been developed considering the three design requirements. In addition, in this article some merits and demerits of each application system are discussed to enable potential researchers to develop more effective and practical MR application systems featuring the multi-DOF dynamic motions.

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“…The vibration suppression capability of MR uids in the sandwich beams was investigated by fabricating the sandwich beams. There is a signi cant reduction in vibration amplitude reported [21,22]. The dynamic response of the MR composite laminated beams using the Finite Element (FE) method was discussed, and the in uence of MR uid core thickness on the vibrational response was studied [23{25].…”

Section: Introductionmentioning

confidence: 99%

Characterization of an In-house Prepared MR Fluid and Vibrational Behaviour of Composite Sandwich Beam with MR Fluid Core

Joladarashi¹,

NAGIREDLA²,

Kumar³

2022

Scientia Iranica

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In the present work, two di erent compositions of Magnetorheological (MR) uid samples with 24 and 30% volume fractions of Carbonyl Iron (CI) particles are prepared. The MR uid samples contain CI particles as a dispersive medium, silicone oil as a carrier uid, and white lithium grease as an anti-settling agent. The e ects of oscillating driving frequency, strain amplitude, magnetic eld, and the percentage of CI particle on the rheological properties of the MR uid samples are presented. The properties of MR uid samples are utilized to design and model the carbon/epoxy composite sandwich beams using the ANSYS Composite Pre-post (ACP) module. The modal, harmonic, and transient analyses are performed on all the modeled sandwich beams to study the in uence of MR uid core thickness, face layer thickness, CI particles volume percentage, and magnetic eld on the vibrational response of the sandwich beams. The present study shows signi cant results in the vibrational response of the composite sandwich beam, which will be more useful for structural applications.

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Dynamic behavior of sandwich beams with different compositions of magnetorheological fluid core

Cited by 10 publications

References 29 publications

Rheological Properties of the In-house Prepared Magneto-rheological Fluid in the Pre-yield Region

Rheological Properties of the In-house Prepared Magneto-rheological Fluid in the Pre-yield Region

Applications of Magnetorheological Fluid Actuator to Multi-DOF Systems: State-of-the-Art from 2015 to 2021

Characterization of an In-house Prepared MR Fluid and Vibrational Behaviour of Composite Sandwich Beam with MR Fluid Core

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