Experimental analysis of vibrations damping due to magnetostrictive based energy harvesting

Davino, D.; Giustiniani, Alessandro; Visone, C.; Adly, A.A.

doi:10.1063/1.3545798

Cited by 37 publications

(21 citation statements)

References 13 publications

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“…Viscoelastic materials have been successfully used to enhance the damping behavior of multiphase composite materials and blends, however, despite their easy processability and low cost, they decrease the stiffness and strength of these materials [9]. Magnetostrictive materials are used as active transducers and passive damping materials, but their high production cost is a major impediment to their wider applicability [6]. CNT is an ideal reinforcement for polymeric materials because of its high aspect ratio, high surface area and outstanding mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…One major area of application of damping is in the reduction of vibration in aircraft panels [1,2] and railway carriages [3]. The conventional method of improving damping in structures and devices is based on the incorporation of either, a viscoelastic material [4], carbon fiber pre-impregnated material [5], or magnetostrictive particle [6]. Recently, carbon nanotube (CNT) has emerged as a candidate damping material [7,8].…”

Section: Introductionmentioning

confidence: 99%

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Viscoelastic Properties of Montmorillonite Clay/Polyimide Composite Membranes and Thin Films

Iroh

Longun

2011

J Inorg Organomet Polym

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Montmorillonite clay, cloisite 30B (nanoclay), was successfully dispersed in a polyimide (PI) matrix by in situ condensation polymerization followed by solution casting and thermal imidization. Wide angle X-ray diffraction, WAXD, test was used to study the structure of cloisite 30B clay powder and nanoclay/polyimide composites. The WAXD spectra of nanoclay powder and the composites show one major diffraction peak at 4.76°and 6°, respectively, suggesting that the d-spacing of nanoclay was decreased by about 26% after composite film processing. The viscoelastic property of polyimide and nanoclay/polyimide composite was studied by using dynamic mechanical spectrometer. The storage modulus and glass-rubber transition temperature of nanoclay/polyimide composites increases with increasing volume fraction of clay. The storage modulus of the composites in the rubbery plateau region, (T [ 400°C) increased remarkably with increasing volume fraction of clay. A modulus enhancement, (E C /E M ) of about three orders of magnitude, (E C /E M *1,440) was obtained for nanoclay/polyimide composite containing 6.8 vol% of nanoclay. The tangent of the loss angle (tan d) for the composites, decreased with increasing volume fraction of nanoclay. The observed decrease in tan d with increasing volume fraction of clay is consistent with the established trend of increasing storage modulus and glassrubber transition temperature with increasing volume fraction of nanoclay. The phenomenal increase in the rubbery plateau storage modulus and glass-rubber transition temperature with increasing volume fraction of clay is believed to be due to increased restriction of chain motion with increasing nanoclay volume fraction.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Viscoelastic Properties of Montmorillonite Clay/Polyimide Composite Membranes and Thin Films

Iroh

Longun

2011

J Inorg Organomet Polym

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“…The passive damping by smart materials has been generally addressed in [41]. Recent contributions deepen this damping effect for Piezo [28,29] and Magnetostrictive materials [10,13]. The latter presents a preliminary analysis showing the effects of the energy harvesting on mechanical damping which requires further effort.…”

Section: Dampingmentioning

confidence: 99%

“…To this aim, some detail on the experimental setup for material characterization, [1,11], the modeling of the mechanical source and its coupling to the active material will be presented.…”

Section: Introductionmentioning

confidence: 99%

Magnetoelastic Energy Harvesting: Modeling and Experiments

Davino¹,

Giustiniani²,

Visone³

2012

Smart Actuation and Sensing Systems - Recent Advances and Future Challenges

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“…[1][2][3] In most power electronic circuits, inductors play crucial functions. When relatively large inductances are required, utilization of ferrite cores becomes indispensable.…”

Section: Introductionmentioning

confidence: 99%

A wave shaping approach of ferrite inductors exhibiting hysteresis using orthogonal field bias

2018

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Advances in power electronic systems have considerably contributed to a wide spectrum of applications. In most power electronic circuits, inductors play crucial functions. Utilization of ferrite cores becomes a must when large inductances are required. Nevertheless, this results in an additional complexity due to their hysteresis nature. Recently, an efficient approach for modeling vector hysteresis using tri-node Hopfield neural networks (HNNs) has been introduced. This paper presents a wave shaping approach using hollow cylindrical ferrite core inductors having axial and toroidal windings. The approach investigates the possibility of tuning the inductor permeability to minimize circuit harmonics. Details of the approach are given in the paper.

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Experimental analysis of vibrations damping due to magnetostrictive based energy harvesting

Cited by 37 publications

References 13 publications

Viscoelastic Properties of Montmorillonite Clay/Polyimide Composite Membranes and Thin Films

Viscoelastic Properties of Montmorillonite Clay/Polyimide Composite Membranes and Thin Films

Magnetoelastic Energy Harvesting: Modeling and Experiments

A wave shaping approach of ferrite inductors exhibiting hysteresis using orthogonal field bias

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