Influence of the distances between the axles in the vertical dynamics of a military vehicle equipped with magnetorheological dampers

Dantas, Caio Pereira; Gabriel, Felipe Magalhães de Matos; Neto, Ricardo Teixeira da Costa

doi:10.4271/2018-36-0232

Cited by 8 publications

(3 citation statements)

References 15 publications

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“…MR-dampers are increasingly used in seismic design of building structures, civil infrastructure [22,23], semi-active vibration isolation systems [24][25][26], and military vehicles [27]. MR dampers are characterized by low energy consumption for high damping forces and fast response.…”

Section: Literature Reviewmentioning

confidence: 99%

Adjustment of Tall Buildings Behavior by Guided Optimization of Magnetorheological-Dampers Control Parameters

Akhnoukh¹,

Ahmed²,

Hasan³

et al. 2023

Preprint

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Magneto-rheological dampers (MR-dampers) are increasingly used in construction applications to reduce the dynamic response of structures to seismic activities or severe wind loading. Sensors attached to the structure will signal the computer to supply the dampers with electric charge that transfers the MR fluid to a near-solid material with different physical and mechanical properties (viscoelastic behavior). Control algorithms govern the fluid to near-solid conversion, which controls the behavior of the damper, and the performance of the structure under the seismic or wind loading event. The successful optimization of control parameters minimize the overall structural response to dynamic forces. The main objective of this research is to change the output behavior of specific floors within a building subjected to seismic excitation by optimizing the MR-dampers control parameters to impact the behavior of a specific floor or number of floors within the building. The adjustment of control parameters to attain this objective was validated in multiple case studies throughout this research. The successful implementation of the research outcome will result in optimized MR-damper design to meet the performance-based criteria of building projects.

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Section: Literature Reviewmentioning

confidence: 99%

Adjustment of Tall Buildings Behavior by Guided Optimization of Magnetorheological-Dampers Control Parameters

Akhnoukh¹,

Ahmed²,

Hasan³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…MR-Dampers are increasingly used in the seismic design of building structures, civil infrastructure [22,23], semi-active vibration isolation systems [24][25][26], and military vehicles [27]. MR-Dampers are characterized by low energy consumption for high damping forces and for their fast response.…”

Section: Literature Reviewmentioning

confidence: 99%

Adjustment of Tall Building Behavior by Guided Optimization of Magneto-Rheological Damper Control Parameters

et al. 2023

View full text Add to dashboard Cite

Magneto-rheological dampers (MR-Dampers) are increasingly being used in construction applications to reduce the dynamic response of structures to seismic activities or severe wind loading. Sensors attached to the structure will signal the computer to supply the dampers with an electric charge that transfers the MR fluid to a near-solid material with different physical and mechanical properties (viscoelastic behavior). Control algorithms govern the fluid to near-solid conversion, which controls the behavior of the damper and the performance of the structure under the seismic or wind loading event. The successful optimization of control parameters minimizes the overall structural response to dynamic forces. The main objective of this research is to change the output behavior of specific floors within a building subjected to seismic excitation by optimizing the MR-Damper control parameters to impact the behavior of a specific floor or number of floors within the building. The adjustment of control parameters to attain this objective was validated in multiple case studies throughout this research. The successful implementation of the research outcome will result in optimized MR-damper design to meet the performance-based criteria of building projects.

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“…Because the so-called MR effect is reversible and has an instantaneous control over the rheological properties, MR fluid has been utilized in various devices such as dampers [4][5][6], valves [7], mounts [8,9], and brakes [10]. Furthermore, because it can easily control high damping force, MR damper has been developed to reduce unwanted vibrations in an extensive range of industries including the automobile [11][12][13][14], electrical appliance [15,16], civil engineering [17][18][19][20], aerospace [21,22], and military industries [23][24][25][26]. However, even though MR dampers work very effectively in various vibration control areas, in terms of commercialization, several problems related to manufacturing cost and temperature rise have been continuously reported due to their internal magnetic coil structures.…”

Section: Introductionmentioning

confidence: 99%

A new design of magnetic circuits in magnetorheological dampers for simple structure subjected to small stroke and low damping force

Lee¹,

Kang²,

Kim³

et al. 2020

Smart Mater. Struct.

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A magnetorheological (MR) damper is popularly applied for vibration control owing to its fast response and the easy controllability of the field-dependent damping force. However, most of the existing MR dampers developed so far possess design complexity and a high manufacturing cost due to complicated coil structures. To resolve these drawbacks of the existing MR dampers, a novel magnetic circuit positioned separately from the piston head of MR damper with a simple structure is proposed in this work. As a first step, a design configuration using the operating principle of the magnetic circuit is demonstrated, and subsequently, the magnetic analysis of MR damper is carried out through an analytical approach and the finite element method. In the magnetic analysis, the magnetic flux density is numerically calculated at various piston locations with different applied currents. After determining the principal design parameters of the proposed MR damper, experimental validation to demonstrate the concept of the new magnetic circuit is performed. The effect of the piston stroke length on the damping force is evaluated as a function of the current. In addition, it is discussed that the proposed MR damper can provide much higher control range of the damping force than conventional types of MR dampers in a low level of damping force.

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Influence of the distances between the axles in the vertical dynamics of a military vehicle equipped with magnetorheological dampers

Cited by 8 publications

References 15 publications

Adjustment of Tall Buildings Behavior by Guided Optimization of Magnetorheological-Dampers Control Parameters

Adjustment of Tall Buildings Behavior by Guided Optimization of Magnetorheological-Dampers Control Parameters

Adjustment of Tall Building Behavior by Guided Optimization of Magneto-Rheological Damper Control Parameters

A new design of magnetic circuits in magnetorheological dampers for simple structure subjected to small stroke and low damping force

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