FEM Analysis of a Cantilever Sandwich Beam with MR Fluid Based on ANSYS

Romaszko, Mateusz; Węgrzynowski, Marcin

doi:10.4028/www.scientific.net/ssp.208.63

Cited by 10 publications

(4 citation statements)

References 15 publications

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“…Dimensions of the examined beam were following: l = 400 mm, b = 30 mm, b g = 2 mm, h 1 = h 2 = h 3 = 2 mm. The beam was placed on the laboratory test-rig presented in detail in [12], [13].…”

Section: The Construction Of Three-layer Beam With Mr Fluidmentioning

confidence: 99%

“…as the function of magnetic field strength H. Essential data for performing the identification were data basing on the measurements of displacement of the beam free end. The measurements were done at the laboratory stand described in works [11], [12], [14]. Tests were performed for various values of magnetic field strength H, for the electromagnet location determined by y m = 40 mm.…”

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confidence: 99%

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Identification of Complex Shear Modulus of MR Layer Placed in Three-Layer Beam – Part 2: Algorithm

Romaszko

Snamina

Pakuła

2015

AMM

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The paper presents the procedure of identification of a complex shear modulus which describes properties of MR fluid in the pre-yield regime as a function of magnetic field. Data necessary for identification were collected basing on measurements of free vibrations of a three-layered cantilever beam at a special laboratory stand. Magnetic field exerting on MR fluid placed in the beam was generated by electromagnet. In the next step, complex modes of beam vibrations for various places of applying the magnetic field and its strength were calculated.

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Section: The Construction Of Three-layer Beam With Mr Fluidmentioning

confidence: 99%

mentioning

confidence: 99%

Identification of Complex Shear Modulus of MR Layer Placed in Three-Layer Beam – Part 2: Algorithm

Romaszko

Snamina

Pakuła

2015

AMM

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“…22 Romaszko et al studied the effects of different MR fluids on the free-decay response of an MR sandwich beam 23 while Romaszko and Wȩgrzynowski aimed to use the appropriate finite elements to represent an MR fluid for their ANSYS analysis. 24 Romaszko and Snamina then developed a method of calculating the relevant dynamic material properties of an MR fluid by first developing a finite element model of the beam 25 and then (with Paku la joining the previous authors) developing an optimization scheme using the eigenvalue problem that matches experimentally measured modal parameters for a given complex shear modulus. 26 Romaszko and Sapiński then investigated the relationship between the MR fluid dynamic properties to the location of the electromagnet along the beam's length.…”

Section: Introductionmentioning

confidence: 99%

Comparison of semi-active damping strategies for magnetorheological sandwich beams

Vazquez

Ortega

Kauffman

2023

Active and Passive Smart Structures and Integrated Systems XVII

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The purpose of this research is to measure the free-decay dynamics of a magnetorheological (MR) sandwich beam when influenced by a semi-active magnetic field and comparing the resulting damping performance to those of baseline fields. The research effort involved an experiment where the beam freely decayed while in a magnetic field that influences the MR sandwich beam, altering its damping performance. In addition to baseline cases of no magnetic field or a constant field, the electromagnet also had a field that would shut off after a set time and a field that would switch between a high and low field strength at a certain frequency. These results were also recreated numerically, which required an experimental modal analysis to gather certain material property data. The experimental findings showed little variation in the damping performance regardless of the magnetic field used, while the numerical analysis indicate that the magnetic fields would quicken damping, but only slightly. The results suggest that improvements to the sandwich beam structure may yield the greatest improvement in MR-fluid-based damping performance.

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“…Romaskzo and Wegrzynowski. 17 studied the free vibration response of aluminum sandwich beam incorporated with a full layer of MR fluid. Joshi et al 18 investigated the effects of magnetic fields on the simple dynamic response of an aluminum beam filled with MR fluid.…”

Section: Introductionmentioning

confidence: 99%

Effects of size and location of magnetorheological segments on random vibration response of laminated composite beams using an N-layer of layerwise theory

Momeni

Zabihollah

Behzad

2023

Journal of Thermoplastic Composite Materials

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Laminated composite beams are widely used in engineering applications, including wind turbine blades and automobile, where the structures are highly subjected to non-deterministic random loadings, requiring a reliable technique to ensure the stability of the structure during operation. Recently, to mitigate the effects of random loadings on the structural stability of the structure, segments of magnetorheological (MR) fluids have been embedded in the laminated beams (MR-laminated beams). In this work, the effects of the size and location of MR-fluid segments on random vibration characteristics are investigated. A laminated beam is considered in which several layers/segments are filled with MR fluids and are subjected to several random loads. An N-layer model of layerwise theory (LWT) developed by the present authors in previous work is considered for computational purposes. A finite element model based on LWT is developed to study the numerical examples. MR-laminated beams consist of five sections; two MR-fluid sections and three composite sections have been studied using LWT. To justify the numerical results, the first three natural frequencies of a laminated beam without an MR layer are solved using a 3D model in COMSOL software which shows a close match with the results of LWT. An in-house experimental setup has been developed to verify the simulation results. The simulation results are then compared with the first-order shear deformation theory (FSDT) and verified by several experimental tests. The effects of MR fluid segments on the dynamic response of MR-laminated beams for six different configurations have been investigated. In addition, the effects of thicknesses of MR fluid section on the dynamic behavior of structures have been investigated. Effects of magnetic fields on statistical properties, correlation, and autocorrelation on MR-laminated beams made of E-glass and fiber-carbon have been investigated. As a case study, the vibration response of a wind turbine blade made of an MR-laminated beam has been investigated using a narrow band process.

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FEM Analysis of a Cantilever Sandwich Beam with MR Fluid Based on ANSYS

Cited by 10 publications

References 15 publications

Identification of Complex Shear Modulus of MR Layer Placed in Three-Layer Beam – Part 2: Algorithm

Identification of Complex Shear Modulus of MR Layer Placed in Three-Layer Beam – Part 2: Algorithm

Comparison of semi-active damping strategies for magnetorheological sandwich beams

Effects of size and location of magnetorheological segments on random vibration response of laminated composite beams using an N-layer of layerwise theory

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