Development of a force sensor working with MR elastomers

Li, Weihua; Kostidis, K; Zhang, Xianzhou; Zhou, Yang

doi:10.1109/aim.2009.5230010

Cited by 69 publications

(78 citation statements)

References 23 publications

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“…A force sensor working with MR elastomer was designed by Li et al [73], shown in figure 29. The force sensor is designed to identify the normal loading.…”

Section: Sensing Devicesmentioning

confidence: 99%

A state-of-the-art review on magnetorheological elastomer devices

Li¹,

Li²,

Li³

et al. 2014

Smart Mater. Struct.

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514

385

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During the last few decades, magnetorheological (MR) elastomers have attracted a significant amount of attention for their enormous potential in engineering applications. Because they are a solid counterpart to MR fluids, MR elastomers exhibit a unique field-dependent material property when exposed to a magnetic field, and they overcome major issues faced in magnetorheological fluids, e.g. the deposition of iron particles, sealing problems and environmental contamination. Such advantages offer great potential for designing intelligent devices to be used in various engineering fields, especially in fields that involve vibration reduction and isolation. This paper presents a state of the art review on the recent progress of MR elastomer technology, with special emphasis on the research and development of MR elastomer devices and their applications. To keep the integrity of the knowledge, this review includes a brief introduction of MR elastomer materials and follows with a discussion of critical issues involved in designing magnetorheological elastomer devices, i.e. operation modes, coil placements and principle fundamentals. A comprehensive review has been presented on the research and development of MR elastomer devices, including vibration absorbers, vibration isolators, base isolators, sensing devices, and so on. A summary of the research on the modeling mechanical behavior for both the material and the devices is presented. Finally, the challenges and the potential facing magnetorheological elastomer technology are discussed, and suggestions have been made based on the authors' knowledge and experience. Abstract:During last decades, magnetorheological (MR) elastomer has attracted significant amount of attention for its enormous potentials in engineering applications. Being a solid counterpart of MR fluids, MR elastomers exhibit unique field-dependent material property when being exposed to magnetic field, in meanwhile overcoming major issues faced in magnetorheological fluids, e.g. deposition of iron particles, sealing problem and environmental contamination. Such advantages offer great potentials for designing intelligent devices to be used in various engineering fields, especially for vibration reduction and isolation. This paper presents a state-of-the-art review on the recent progress of MR elastomer technology, with special emphasis on research and development of MR elastomer devices and their applications. To keep the integrity of the knowledge, the review includes a brief introduction of the MR elastomer materials and follows by discussion of critical issues in designing magnetorheological elastomer devices, i.e. operation modes, coil placements and principle fundamentals. A comprehensive review has been presented research and development of MR elastomer devices, including vibration absorbers, vibration isolators, base isolators, sensing devices and so on. Summary of research on modeling mechanical behavior for both material and devices are presented. Finally, challenges and potentials facing ...

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“…A force sensor working with MR elastomer was designed by Li et al [73], shown in figure 29. The force sensor is designed to identify the normal loading.…”

Section: Sensing Devicesmentioning

confidence: 99%

A state-of-the-art review on magnetorheological elastomer devices

Li¹,

Li²,

Li³

et al. 2014

Smart Mater. Struct.

Self Cite

514

385

View full text Add to dashboard Cite

show abstract

“…In the approximation of the perfect elastic body, the sums of the main deformations and the compressibility module of MRE with graphite microparticles, depend on the magnetic field intensity. In our study [33], graphite was introduced into conventional MREs to change the overall resistances so that it can be detected by a multimeter. We found a MRE sample with 55% carbonyl iron, 20% silicon rubber and 25% graphite powder has the best performance.…”

Section: Mre Resistancesmentioning

confidence: 99%

Magnetorheological Elastomers and Their Applications

Zhang

2013

Advanced Structured Materials

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“…They have found that the electrical resistance of the samples changes depended on both the magnitude of the mechanical loading and the strength of the magnetic field. In several other studies, it has been shown that a wider electrical resistance change of the composite can be obtained, and the sensitivity to the applied external force can be improved by the addition of graphite particles [21][22][23]. The change of the material conductivity for both the applied loading and the magnetic field could be explained by the change in the distance between particles.…”

Section: Introductionmentioning

confidence: 87%

“…In addition to the field-dependent stiffness change property of the MRE, the electrical resistance of the material is also changed according to the induced strain within the elastomer [20][21][22][23]. Such a conductive property can be realized by the higher iron powder incorporation within the elastomeric matrix as well as the proper arrangement of the electrically conductive particles into the deforming direction of the host elastomer.…”

Section: Electrical Resistance Property Of a Graphite-based Elastomermentioning

confidence: 99%

Experimental Investigation of an Adaptively Tuned Dynamic Absorber Incorporating Magnetorheological Elastomer with Self-Sensing Property

2016

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The magnetorheological elastomer (MRE) is known to belong to a class of smart materials whose elastic properties can be varied by an externally applied magnetic field. In addition to the property of the field-dependent stiffness change of the MRE, the electrical resistance of the composite is also changed by the induced strain, thereby providing a new selfsensing feature. In the present study, a novel, dynamic vibration absorber is developed using an MRE with a self-sensing function and adaptability. The natural frequency of the absorber is instantaneously tuned to a dominant frequency extracted from the strain signal of MRE. The damping performance test shows that the vibration of a system with one degree-of-freedom that is exposed to a nonstationary disturbance can be adequately reduced by the proposed frequency-tunable dynamic absorber without the use of external sensors.

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Development of a force sensor working with MR elastomers

Abstract: Abstract-

Cited by 69 publications

References 23 publications

A state-of-the-art review on magnetorheological elastomer devices

A state-of-the-art review on magnetorheological elastomer devices

Magnetorheological Elastomers and Their Applications

Experimental Investigation of an Adaptively Tuned Dynamic Absorber Incorporating Magnetorheological Elastomer with Self-Sensing Property

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