Novel Soft Actuator Using Magnetorheological Elastomer

Kashima, Shunta; Miyasaka, Fumikazu; Hirata, Katsuhiro

doi:10.1109/tmag.2011.2173669

Cited by 125 publications

(91 citation statements)

References 9 publications

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“…combinations of field directions and aligned chain directions. MR elastomer working in field-active mode can be used to design various actuators [75,77]. Examples of shear mode devices include vibration absorbers [62][63][64][65][66][67][68][69][70], vibration isolators [16,71,[89][90] and base isolators [20,[78][79]93].…”

Section: Operation Modesmentioning

confidence: 99%

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

Li¹,

Li²,

Li³

et al. 2014

Smart Mater. Struct.

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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Section: Operation Modesmentioning

confidence: 99%

“…Figure 31. Soft actuator made of isotropic MR elastomer [77] Physical status shift of MR elastomer due to magnetic field makes it great candidate to develop adaptive beam structures [94,[96][97]127]. Zhou and co-workers [94,[96][97] piloted the idea of adaptive sandwich beams with MR elastomers as part of the core, figure 32 (a).…”

Section: Sensing Devicesmentioning

confidence: 99%

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

Li¹,

Li²,

Li³

et al. 2014

Smart Mater. Struct.

514

385

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“…[40,[114][115][116][117][118][119][120][121][122][123] The additives used in previous works are methyl tri-methoxysilane, [121] dimethyl silicone, [117] silane clear, [122] tert-buthyl perbenzoat, [40] toluene-benzoil peroxide, [123] catalyst 60R/Rhone-Poulenc-stearic acid, [116,119] and acetic initiator. [40,[114][115][116][117][118][119][120][121][122][123] The additives used in previous works are methyl tri-methoxysilane, [121] dimethyl silicone, [117] silane clear, [122] tert-buthyl perbenzoat, [40] toluene-benzoil peroxide, [123] catalyst 60R/Rhone-Poulenc-stearic acid, [116,119] and acetic initiator.…”

Section: Matrix Elementsmentioning

confidence: 99%

“…Surface modification of the iron particles, which is initially applied in the MR fluids, gives better performance compared to conventional MR fluids in terms of stability against sedimentation. [162] The use of silane coupling agent methyltrimethoxysilane by Kashima et al [121] was intended to change the surface of the carbonyl iron from hydrophilic to hydrophobic. [108,118] The application of surface polymerization on MREs iron particles was initiated by Wang et al [43] by means of silane coupling agents KH-550 and AH-151.…”

Section: Surface Modification Of Particlesmentioning

confidence: 99%

Recent Progress on Magnetorheological Solids: Materials, Fabrication, Testing, and Applications

et al. 2014

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Magnetorheological (MR) materials are classified as smart materials due to their responsiveness to external magnetic stimuli. Intensive research on MR materials has led to broad applications in several potential fields. A solid carrier matrix state called MR elastomer with its exceptional magnetic responsive feature is obtained by merging magnetizable particles within an elastomeric polymer. This integration results in outstanding characteristics on the rheological performances. Special prominence is given to the understanding of the base materials and fabrication as well as the functional behavior through various characterization methods. Broad applications of MREs are also explored to provide a profound market picture and to motivate researchers to develop novel technology.

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“…These materials have attracted the attention of different researchers due to the possible applications, for example, in vibration control and in the design of flexible robots, see, for example (Albanese et al, 2003;B€ ose et al, 2012;Deng and Gong, 2008;Farshad and Le Roux, 2004;Ghafoorianfar et al, 2013;Ginder et al, 1999Ginder et al, , 2000Ginder et al, , 2001Kashima et al, 2012;Li and Zhang, 2008;Yalcintas and Dai, 2004;Zhu et al, 2012). The theory of nonlinear magneto-elastic interactions was developed many decades ago, we can mention, for example, the monograph by Brown (1966) and Maugin (1988) and Eringen and Maugin (1990); Hutter et al (2006); Tiersten (1964).…”

Section: Introductionmentioning

confidence: 99%