A self-sensing magnetorheological elastomer-based adaptive bridge bearing with a wireless data monitoring system

Behrooz, Majid; Yarra, Siddaiah; Mar, David; Pinuelas, Nathan; Muzinich, Blake; Publicover, Nelson G.; Pekcan, Gökhan; Itani, Ahmad M.; Gordaninejad, Faramarz

doi:10.1117/12.2218691

Cited by 15 publications

(15 citation statements)

References 5 publications

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“…Besides, many semi-active MRE-based vibration suppression devices have been designed for applications in structural seismic mitigation (Gu et al, 2016, 2017, 2019; Yu et al, 2016). Owing to the attractive potentials of MREs in vibration attenuation applications, considerable efforts have been made toward designing, fabricating, characterizations, and testing of MREs and MRE-based vibration isolators in recent years in order to seek guidance on their design for different vibration mitigation applications (Behrooz et al, 2016; Collette et al, 2010; Lee et al, 2018; Li and Li, 2015; Xin et al, 2016a; Zheng et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

A novel bi-directional shear mode magneto-rheological elastomer vibration isolator

Jalali

Dianati

Norouzi

et al. 2020

Journal of Intelligent Material Systems and Structures

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In this article, a novel bi-directional shear mode magneto-rheological elastomer–based vibration isolator has been designed, fabricated, and characterized to improve the dynamic response and identification of this class of “intellectual” mechanical devices. A heuristic embodiment has been realized in order to design such an isolator wherein both the vertical and horizontal directions can be operated only in the shear mode not only individually but also simultaneously. Two fixtures have been designed for performing the characterization of the magneto-mechanical behavior of the proposed magneto-rheological elastomer isolator in the vertical and horizontal shear modes under wide ranges of strain amplitude (4%–32%), excitation frequency (1–8 Hz), and magnetic flux density (0–220 mT). Experimental results revealed maximum relative magneto-rheological effects of 35% and 27 % in the vertical and horizontal shear modes, respectively. Furthermore, basic mathematical models of single-degree-of-freedom systems, employing the magneto-rheological elastomer–based isolator in the vertical and horizontal shear modes, have been established. The proposed magneto-rheological elastomer isolator in the vertical mode exhibited natural frequency shift of 6.1% by a small increment in the magnetic flux density which approves the potential of the proposed bi-directional shear mode magneto-rheological elastomer–based vibration isolator for vibration control applications, such as seat suspension systems.

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Section: Introductionmentioning

confidence: 99%

A novel bi-directional shear mode magneto-rheological elastomer vibration isolator

Jalali

Dianati

Norouzi

et al. 2020

Journal of Intelligent Material Systems and Structures

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“…They exhibit a magnetoviscoelastic behavior and, upon application of an external magnetic field, the force between the particles increases which results in an increased stiffness and damping. However, damping change is typically smaller compared to stiffness change (Behrooz et al, 2016). When MREs are subjected to a variable magnetic field, changes in stiffness can be realized in relation to the field intensity.…”

Section: Introductionmentioning

confidence: 99%

Performance of a large-scale magnetorheological elastomer–based vibration isolator for highway bridges

Yarra

Gordaninejad

Behrooz

et al. 2018

Journal of Intelligent Material Systems and Structures

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This study presents an experimental investigation on the magnetorheological effect of a new magnetorheological elastomer–based adaptive bridge isolation bearing system. Two identical magnetorheological elastomer–based adaptive bridge bearings (isolators) were designed and fabricated. Electromagnets were incorporated to create a closed-loop magnetic path in the magnetorheological elastomer layers. A double-lap shear and compression test setup was utilized to characterize the mechanical properties of the system subjected to scaled structural cyclic forces and strains. Experimental results demonstrated that the effective stiffness of adaptive bridge bearings increases with increased applied magnetic field and a compressive force resulted in larger apparent shear stiffness. Also, increasing loading frequency resulted in larger apparent shear stiffness and lower magnetorheological effect and similarly, however, a compressive force resulted in smaller magnetorheological effects.

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“…6,7 Thus, other conductive filler materials, such as carbon black 8 and Ag powder, 9 are added. Recently, multi-walled carbon nanotubes (MWNTs) have attracted significant attention because of their unique material properties in mechanical, thermal, and electrical aspects.…”

Section: Introductionmentioning

confidence: 99%

Study on a new self-sensing magnetorheological elastomer bearing

Zhou

Wang

et al. 2018

AIP Advances

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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.

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A self-sensing magnetorheological elastomer-based adaptive bridge bearing with a wireless data monitoring system

Cited by 15 publications

References 5 publications

A novel bi-directional shear mode magneto-rheological elastomer vibration isolator

A novel bi-directional shear mode magneto-rheological elastomer vibration isolator

Performance of a large-scale magnetorheological elastomer–based vibration isolator for highway bridges

Study on a new self-sensing magnetorheological elastomer bearing

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