A highly adjustable magnetorheological elastomer base isolator for applications of real-time adaptive control

Li, Yancheng; Li, Jianchun; Tian, Tongfei; Li, Weihua

doi:10.1088/0964-1726/22/9/095020

Cited by 161 publications

(173 citation statements)

References 48 publications

Supporting

Mentioning

173

Contrasting

Order By: Relevance

“…To further explore the unique potentials of MRE isolator and make them fully utilized in vibration mitigation of structural or machinery, a highly adaptive MRE seismic isolator was designed and fabricated [22] for evaluating MRE isolator nonlinear behaviors. The main contributions of this work include: (a) a novel design of the multiplayer MRE isolator; and (b) a new phenomenological model to precisely predict MRE isolator nonlinear responses.…”

Section: Introductionmentioning

confidence: 99%

Experimental study and modeling of a novel magnetorheological elastomer isolator

Yang

et al. 2013

Smart Mater. Struct.

Self Cite

141

115

View full text Add to dashboard Cite

This paper reports an experimental setup aiming at evaluating the performance of a newly designed magnetorheological elastomer (MRE) seismic isolator. As a further effort to explore the field-dependent stiffness/damping properties of the MRE isolator, a series of experimental testing were conducted. Based upon the analysis of the experimental responses and the characteristics of the MRE isolator, a new model that is capable of reproducing the unique MRE isolator dynamics behaviors is proposed. The validation results verify the model's effectiveness to portray the MRE isolator. A study on the field-dependent parameters is then provided to make the model valid with fluctuating magnetic fields. To fully explore the mechanism of the proposed model, an investigation relating the dependence of the proposed model on every parameter is carried out. AbstractThis paper reports an experimental setup aiming at evaluating the performance of a newly designed magnetorheological elastomer (MRE) seismic isolator. As a further effort to explore the field-dependent stiffness/damping properties of the MRE isolator, a series of experimental testing were conducted. Upon on the analysis of the experimental responses and the characteristics of the MRE isolator, a new model that is capable of reproducing the unique MRE isolator dynamics behaviors is proposed. The validation results verify the model's effectiveness to portray the MRE isolator. A study on the field-dependent parameters is then provided to make the model valid with fluctuating magnetic fields. To fully explore the mechanism of the proposed model, an investigation relating the dependence of the proposed model on every parameter is carried out.

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental study and modeling of a novel magnetorheological elastomer isolator

Yang

et al. 2013

Smart Mater. Struct.

Self Cite

141

115

View full text Add to dashboard Cite

show abstract

“…For the relationship between the force and displacement, most scholars have studied its horizontal shear mechanical properties. 26,27 In the present study, the data are collected from the vertical vibration of the upper and lower directions. The nonlinear behavior of the force-displacement hysteretic curve is obtained.…”

Section: Experimental Systemmentioning

confidence: 99%

Study on a new self-sensing magnetorheological elastomer bearing

Zhou

Wang

et al. 2018

AIP Advances

View full text Add to dashboard Cite

The complexity of a semi-active vibration isolation system results in the difficulty of realizing its role on impact load effectively. Thus, a new self-sensing bearing based on modified anisotropic magnetorheological elastomer (MRE) is proposed in this study. This self-sensing bearing was fabricated by dispersed multi-walled carbon nanotubes and carbonyl iron particles into polydimethylsiloxane matrix under a magnetic field. The working conditions of the bearing were analyzed and decoupled. An optimal structure size of the bearing was selected and used for setting up the experiment test system. The self-sensing characteristic of the MRE bearing under the multi-field coupling of load and magnetic fields was then investigated by this test system. Results showed that the resistance of the modified MRE, in which a preload was applied by the bearing, could change approximately 28%–56% under extrusion force, mechanical force, and external magnetic field. The vibration isolation performance was tested based on the self-sensing characteristic. The bearing had excellent mechanical properties, which could reduce at least 30% of vibration. Thus, the modified MRE of the magnetorheological elastomer bearing could be simultaneously used as an actuator and a sensor.

show abstract

“…So far, several MRE-based isolation devices have been proposed [18][19][20][21][22][23][24][25][26][27][28]. Most of the proposed MRE-based base isolators utilized silicone rubber that cures at room temperature conditions without any special equipment.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Natural Rubber‐Based Magnetorheological Elastomers at Large Strain for Base Isolators

Lee

Kim

Jung

2018

Shock and Vibration

View full text Add to dashboard Cite

To withstand harsh conditions and have a moderate strength, it is desirable to use natural rubber for base isolators. In addition, previous studies have measured the magnetorheological (MR) effect under low-strain range, mostly within 10%. In the reality, it is necessary to evaluate the performance under large-strain range for base isolators. In this study, material properties of natural rubberbased MREs with various mixing ratios were evaluated under large-strain range (∼100%). In the first step, MREs with various iron ratios were fabricated and evaluated to observe the MR effect according to the ratio and arrangement of iron powder. As a result, the highest MR effect (22.0% at 100% strain) and damping ratio (10.29%) were observed in the sample with 35% iron ratio, and the MR effect of the isotropic and the anisotropic MRE did not show significant difference under large-strain (50∼100%). In the second step, MRE samples containing the optimum iron ratio (investigated in the first step) and various mixing ratios of carbon black and naphthenic oil were prepared. As a result, the MRE containing 60phr of carbon black and 40phr of naphthenic oil had the highest MR effect (33.8% at 100% strain). Compared to the case without additives, it showed an obvious improvement.

show abstract

A highly adjustable magnetorheological elastomer base isolator for applications of real-time adaptive control

Cited by 161 publications

References 48 publications

Experimental study and modeling of a novel magnetorheological elastomer isolator

Experimental study and modeling of a novel magnetorheological elastomer isolator

Study on a new self-sensing magnetorheological elastomer bearing

Fabrication and Characterization of Natural Rubber‐Based Magnetorheological Elastomers at Large Strain for Base Isolators

Contact Info

Product

Resources

About