Numerical and Experimental Investigation on Small Scale Magnetorheological Damper

Sharma, S. Vivekananda; Hemalatha, G.

doi:10.5829/ije.2022.35.12c.16

Cited by 3 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Variations in forces occurred in response to increases in current caused by shear thinning and shear thickening inside the MRD. A similar phenomenon has been reported [45][46][47][48][49][50]. It was also inferred from Figure 13 that maximum damping force was developed in the negative cycle, i.e., when the piston was moving downwards, which corresponded to the shear thickening phenomenon governing this study.…”

Section: Figure 16 Df For Varying Currentsupporting

confidence: 87%

“…The smooth curve of the F-D plot shown in Figure 15 was due to the absence of air bubbles inside the MRD, possibly due to the careful filling of MRF in the chamber. Similar smooth curves were observed [44][45][46][47]. The test was executed as displacement and excitation frequency control with current fluctuation.…”

Section: Testing Setupsupporting

confidence: 70%

“…Figure 18 compares experimental and analytical model data to confirm comparable behaviour that showed the force increased with increased current. Similar to [45] the analytical and experimental model curves were smooth and grew similarly, although an error percentage of less than 5 was observed. The percentage of error in total DF for the analytical and experimental model is presented in Table 6.…”

Section: Figure 18 Comparison Between the Experimental And Analytical...supporting

confidence: 52%

See 2 more Smart Citations

Performance Evaluation of a Small-Scale Magnetorheological Damper for Civil Engineering Applications

Vivekananda Sharma,

Gladston,

Ebanezer

2023

ACAE

View full text Add to dashboard Cite

Magnetorheological dampers (MRDs) are devices that adjust their damping properties in response to an external magnetic field. Large-scale MRDs have been successfully used as vibration control devices in structures. This study focuses on modelling and optimizing an MRD using COMSOL Multiphysics. Various parameters, such as coil turns and current, are optimized to achieve the maximum flux value in the MRD. The simulation yielded a maximum magnetic flux of 0,44 T with 500 coil turns. Based on the optimized MRD parameters, a numerical equation is then used to calculate the total damping force. The maximum numerical and experimental damping forces corresponding to a 2,0 A current were 989,39 and 1004,63 N, respectively. The numerical damping force is then compared to the experimental results to validate the accuracy of the model. The MRD is integrated into a scaled-down reinforced concrete frame and subjected to a cyclic loading test for performance evaluation. The results show that the MR dampers improve the performance of the frame structure, increasing its load-carrying capacity and energy dissipation by 19,45 % and 20,43 %, respectively. The findings of the study provide valuable insights into the behaviour of MRDs and their optimization using numerical simulations, as well as highlight the importance of experimental validation for accurate prediction of the performance of MRDs in practical civil engineering applications.

show abstract

Section: Figure 16 Df For Varying Currentsupporting

confidence: 87%

Section: Testing Setupsupporting

confidence: 70%

Section: Figure 18 Comparison Between the Experimental And Analytical...supporting

confidence: 52%

See 1 more Smart Citation

Performance Evaluation of a Small-Scale Magnetorheological Damper for Civil Engineering Applications

Vivekananda Sharma,

Gladston,

Ebanezer

2023

ACAE

View full text Add to dashboard Cite

show abstract

A Study on Energy Dissipation Capacity of Multi Coil MR Damper for Seismic Mitigation

Vivekananda Sharma,

Hemalatha,

Daniel

2024

Lecture Notes in Civil Engineering

View full text Add to dashboard Cite

Development of an Impact Energy Absorption Structure by an Arc Shape Stroke Origami Type Hydraulic Damper

Guan,

Yao,

Zhao

et al. 2023

Shock and Vibration

View full text Add to dashboard Cite

Cylindrical hydraulic dampers used to reduce impacts and vibrations typically have linear strokes. In this study, a new arc-shaped stroke-type origami hydraulic damper with a nonlinear damping performance was proposed. By examining the damping effect of the origami hydraulic damper, the damping force was found to be proportional to the square of the motion velocity. A nonlinear dynamics governing equation was established using the derived formula for the damping force of the origami hydraulic damper, and a numerical analysis using the Runge–Kutta method was established. An impact test device with an arc-shaped stroke was developed, and the error between the numerical analysis value of the impact displacement and the measured experimental value was confirmed to be sufficiently small. An impact verification experiment confirmed that the damping effect of the origami hydraulic damper increases with the input energy of the impact. By varying the diameter of the orifice hole, which is an important design factor for an origami hydraulic damper, the damping effect of the origami hydraulic damper was found to increase as the diameter of the orifice hole decreased. To examine the effect of the type of hydraulic oil inside the origami hydraulic damper, water and edible oil were used to conduct impact verification experiments, and it was found that the effect on the impact damping effect was relatively small.

show abstract

Numerical and Experimental Investigation on Small Scale Magnetorheological Damper

Cited by 3 publications

References 25 publications

Performance Evaluation of a Small-Scale Magnetorheological Damper for Civil Engineering Applications

Performance Evaluation of a Small-Scale Magnetorheological Damper for Civil Engineering Applications

A Study on Energy Dissipation Capacity of Multi Coil MR Damper for Seismic Mitigation

Development of an Impact Energy Absorption Structure by an Arc Shape Stroke Origami Type Hydraulic Damper

Contact Info

Product

Resources

About