Adaptive tuned vibration absorber based on magnetorheological elastomer-shape memory alloy composite

Kumbhar, Samir B.; Chavan, S. P.; Gawade, Sanjaykumar S.

doi:10.1016/j.ymssp.2017.07.027

Cited by 96 publications

(33 citation statements)

References 21 publications

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“…Nowadays magnetorheological elastomer (MRE) has attracted much attention since, in addition to its magnetic and rheological properties, it presents uncommon electrical properties leading to various engineering applications, for example, vibration absorbers [1][2][3], electromagnetic waves absorbers [4], dampers [5,6], and sensors [7,8]. MREs are smart materials with properties that can be altogether changed in a controlled manner by outer stimuli, for example, magnetic field, electric-magnetic field, temperature, and pH [9,10].…”

Section: Introductionmentioning

confidence: 99%

Rheological and Resistance Properties of Magnetorheological Elastomer with Cobalt for Sensor Application

et al. 2020

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Cobalt particles have been introduced as a filler due to the advantages of embedding their magnetic and electrical properties in magnetorheological elastomer (MRE). In the present research, the rheology and resistance of MRE are experimentally evaluated. Isotropic and anisotropic MRE samples containing silicone rubber and cobalt particles were fabricated. The magnetic properties of MRE are conducted using a vibrating sample magnetometer (VSM). The morphological aspects of MRE are observed by using field emission scanning electron microscopy (FESEM) and characterized by energy-dispersive X-ray spectroscopy (EDX). Rheological properties under various magnetic field strengths were measured for the magnetic field, strain amplitude, and frequency sweep test by using a parallel-plate rheometer. Subsequently, the resistance of MRE is tested under different applied forces and magnetic fields. The MRE storage modulus depicted an enhancement in field-dependent modulus across all the applied magnetic fields. The electrical resistance generated from the sample can be manipulated by external magnetic fields and mechanical loads. The conductivity of MRE is due to the existence of cobalt arrangements observed by FESEM. By introducing cobalt as filler and obtaining satisfactory results, the study might open new avenues for cobalt to be used as filler in MRE fabrication for future sensing applications.

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Section: Introductionmentioning

confidence: 99%

Rheological and Resistance Properties of Magnetorheological Elastomer with Cobalt for Sensor Application

et al. 2020

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“…Because the excitation frequency is known beforehand according to Equation (35), and in the absence of internal and external disturbances, an open-loop control strategy is employed. 47 Firstly, required the effective mass is calculated from the following formula, which is adapted from Walsh and Lamancusa with some modifications 21…”

Section: Tuning Methodsmentioning

confidence: 99%

“…Later, Berardengo et al improved the apparatus to be adopted in the vibration mitigation of a multimodal primary system . Recently, Kumbhar et al have built an adaptive TVA based on MR elastomer‐shape memory alloy composite . Even though these devices have generally wide ranges of adaptation, their fabrication may not be always economical.…”

Section: Introductionmentioning

confidence: 99%

An innovative adaptive tuned vibration absorber with variable mass moment of inertia for mitigation of transient response of systems

Shakib

Ghorbani‐Tanha

2020

Struct Control Health Monit

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Summary An innovative semiactive device, named the spindle adaptive tuned vibration absorber (SATVA), is proposed herein, having the potential of attenuating unfavorable vibrations of the host systems. The proposed device includes a preferably spindle‐shaped body of mass, whose mass moment of inertia can be altered simply by moving a pair of rotating supports. Therefore, the natural frequency of the device can be altered with a fairly low power consumption. A comprehensive analytical approach is employed in order to derive the governing equations of motion of the device, considering physical and practical issues. Through a numerical case study, it is demonstrated that the device is capable of reducing unfavorable vibrations of a rotating machinery during start‐up, while requiring considerably less amount of physical mass, compared with conventional absorbers. In addition, the spindle adaptive tuned vibration absorber has a quite rapid adaptation mechanism in comparison with other adaptive‐mass tuned vibration absorbers. Provided that its absolute acceleration during operation can be kept within reasonable limits to prevent slipping, this device is capable of finding different applications in various engineering disciplines.

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“…MRE overcomes the shortcomings of magnetorheological fluid (MRF), such as leakage, easy sedimentation, and instability [3][4][5]. MRE has a wide range of engineering applications because its variable stiffness characteristics, such as tuning dampers, dampers, sensors, and magnetorheological elastic polishing bodies [6][7][8][9]. The excellent mechanical properties of MRE are determined by the internal magnetic particles, which will form a magnetic particle chain parallel to the direction of the magnetic field under applied magnetic field [10].…”

Section: Introductionmentioning

confidence: 99%

Simulation Study on the Motion of Magnetic Particles in Silicone Rubber‐Based Magnetorheological Elastomers

Wang

et al. 2019

Mathematical Problems in Engineering

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Magnetorheological elastomer (MRE) is an intelligent composite material and has been widely used in various fields such as vibration reduction and sensing. MRE has an excellent magnetorheological effect through the chaining of its internal magnetic particles. Current studies on MREs mainly focus on the preparation of materials and characterization of mechanical properties. However, very few studies have been conducted on the mechanism of magnetic particle motion during MRE curing. Based on the silicone rubber-based MRE, the motion mechanism of magnetic particles during curing was explored through numerical simulation. First, we analyzed the magnetic force and viscous force of magnetic particles in MRE and discussed the equations of motion of magnetic particles under applied magnetic field. Further, we established a uniform magnetic field model through the finite element method and simulated the motion of two magnetic particles under the magnetic field. Finally, we discussed the effects of particle distribution angles, particle radii, applied magnetic field strength, and distance between particles on particle velocity and displacement. The results show that the distance between particles has the greatest influence on the motion of magnetic particles, and the size of the distance between particles will affect the contact time of the particles, thus affecting the chain formation of magnetic particles in the MRE.

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Adaptive tuned vibration absorber based on magnetorheological elastomer-shape memory alloy composite

Cited by 96 publications

References 21 publications

Rheological and Resistance Properties of Magnetorheological Elastomer with Cobalt for Sensor Application

Rheological and Resistance Properties of Magnetorheological Elastomer with Cobalt for Sensor Application

An innovative adaptive tuned vibration absorber with variable mass moment of inertia for mitigation of transient response of systems

Simulation Study on the Motion of Magnetic Particles in Silicone Rubber‐Based Magnetorheological Elastomers

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