Numerical investigation of smart base isolation system employing MR elastomer

Usman, Muhammad; Sung, Shung H.; Jang, Daeik; Jung, Hyung‐Jo; Koo, Jeong‐Hoi

doi:10.1088/1742-6596/149/1/012099

Cited by 28 publications

(18 citation statements)

References 4 publications

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“…This novel vibration isolator has potential in utilisation where the reinforced vibration properties are wanted. Study of MRE isolators in vibration attenuation of structural systems has been done in [85][86][87], and a model of an MRE isolator has been constructed and experimentally examined in [88]. The efficiency of the MRE isolator depends on some significant parameters, like the relative MR effect, the material's strength and its life span.…”

Section: Semi Active Vibration Control Systemsmentioning

confidence: 99%

Review on Seat Suspension System Technology Development

Heidarian

Wang

2019

Applied Sciences

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This review will focus on the necessity for developing seat vibration control systems as a part of manufacturers’ investigation into finding innovative methods to increase the comfort and safety of the vehicles’ drivers. Operators of either on-road or off-road vehicles are regularly subjected to an extended variety of various vibration levels, especially at low frequencies. Considering that exposure to such vibration in long term has some damaging effects on driver’s health, many comprehensive investigations have been carried out and researchers have proposed several measures for estimating discomfort and the suitability of various vehicles’ seats such as those of trucks, cars and agricultural vehicles in operating condition. Active, passive and semi-active suspension systems are employed in vehicle seats to alleviate the harmful and damaging effects due to the transmitted vibration to the human body. In order to improve riding comfort, the operator’s body displacement and acceleration must be reduced. According to the research, active suspension control systems are the best choice to reduce the transmitted vibration to the drivers’ body and provide the best ride comfort in comparison with passive and semi-active systems.

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Section: Semi Active Vibration Control Systemsmentioning

confidence: 99%

Review on Seat Suspension System Technology Development

Heidarian

Wang

2019

Applied Sciences

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“…The bearings have the mechanical property of being very flexible in the horizontal direction and very stiff in the vertical direction , so that the normal stress of the bearing on the plate is negligibly small. In the context of the magneto‐elastic hybrid structure under consideration it is relevant that ‘smart’ base isolation systems that employ magneto‐rheological elastomers (MREs) have been considered recently . This is seen as an important advantage because the elastic module or stiffness of the elastomer can now be adjusted by varying the magnitude of the magnetic field.…”

Section: The Constitutive Equationsmentioning

confidence: 99%

The role of magnetic fields in the strong stabilization of a hybrid magneto‐elastic structure

Dalsen

2011

Math Methods in App Sciences

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In this paper, we are concerned with a model for the magneto-elastic interactions of a three-dimensional elastic body and a two-dimensional flexible plate, which is attached to the flat flexible part of the surface of the body. Both the solid body and the plate are permeated by magnetic fields. The mathematical model is analyzed from the point of view of existence and uniqueness and stabilization.It turns out that, in the presence of the magnetic fields in the solid and the plate, strong stabilization can be achieved under viscous damping in the plate in one direction that is determined by the nature of the primary magnetic fields in the body and the plate. IntroductionIn this paper, we consider the interaction of a three-dimensional elastic electrically conducting solid body, which has a flat flexible horizontal base, and a thin elastic electrically conducting plate, the interface, which is mounted on the base of the solid. The remainder of the surface of the body is assumed to be rigid. Whilst it is assumed that the 3 D body is subject to in-plane and transversal deflections, we will assume that the transversal motions of the thin 2 D plate are negligibly small relative to its in-plane motions and thus omitted. This is a reasonable assumption when the body is considerably more flexible in the horizontal direction than in the vertical direction.Perfect contact between the body and the plate is assumed at the interface, so that the magneto-elastic motions of the body at its base are 'in unison' with those of the plate. This entails that the composite dynamics of the structure is governed by contact constitutive equations, which stipulate that the elastic as well as the magnetic fields that may be different in the interiors of the body and the plate match at the interface. Moreover, account is taken of the surface tractions at the interface resulting from the magneto-elastic motions of the body. When integrated into the plate dynamics, these surface tractions are manifested as additional terms in the system for the magneto-elastic plate, that in view of the contact assumption furnishes, in turn, a system of dynamical boundary conditions for the system for the solid body.Primarily our aim is to consider the model for the composite magneto-elastic structure from the point of view of stabilization, in particular, to determine the effectiveness of the magnetic dissipation in the solid and the plate. Our interest in this problem was inspired, on the one hand, by studies of the classical system of magneto-elasticity, and, on the other hand, by a flourishing interest in hybrid systems in elasticity in recent years. For the sake of coherence we mention only a few contributions-more references to the literature are provided at the end of this section. In the area of classical magneto-elastic systems, Perla Menzala and Zuazua [1] established strong stabilization of the model when the domain in a three-dimensional space is simply connected, without having to incorporate mechanical damping in the model. Further to this work M...

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“…The magnetorheological elastomers (MRE) consist of ferromagnetic particles (generally of micrometric size) dispersed in a silicone elastomeric matrix [8][9][10][11][12]. Their low response time (on the order of one milliseconds), their continuously controllable properties, and their ability to withstand wide variations in rigidity make MRE attractive for potential applications in aerospace, automotive, civil engineering or in electrical engineering [13][14][15][16][17]. Examples include adaptive lenses, interactive man-machine interfaces, damping devices and variable stiffness supports.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation and experimental analysis of magneto-mechanical behavior of anti-seismic active sandwich structure

Zerrouni¹,

Aguib²,

Grine³

et al. 2019

J. vibroeng.

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This work focuses on the quasi-static behavior study for simply supported sandwich beams with aluminum faces and magnetorheological elastomer core subjected to three points bending subjected to a magneto-mechanical loading by numerical and experimental investigations. The mechanical properties of the magnetorheological elastomer core are measured experimentally and the mechanical behavior of the MRE was identified by the generalized Maxwell rheological model. Depending upon the adjustable properties of the beam, energy dissipation is by core shear. A systematic series of experiments and finite elements simulations have been performed in order to assess the static behavior of the beam. The results obtained show a significant influence of the magnetic field intensity on the flexural displacement of the beam.

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Numerical investigation of smart base isolation system employing MR elastomer

Cited by 28 publications

References 4 publications

Review on Seat Suspension System Technology Development

Review on Seat Suspension System Technology Development

The role of magnetic fields in the strong stabilization of a hybrid magneto‐elastic structure

Numerical simulation and experimental analysis of magneto-mechanical behavior of anti-seismic active sandwich structure

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