An analytical investigation into the use of magneto-rheological elastomers to suppress flexural waves in beams

Almeida, Fabricio; Brennan, M.J.; Paschoalini, Amarildo Tabone; Santos, Vivian Mayumi Miyazaki; Bellucci, Felipe Silva; Job, Aldo Eloízo

doi:10.1016/j.proeng.2017.09.342

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…It was concluded that it could speed up the calculation time and training methodology. The work of Almeida et al 27 used MRE to suppress flexural wave on a beam solely on a simulation basis. The amount of damping depends on the thickness of the MRE layer, and increasing thickness also results in small or negligible damping.…”

Section: Introductionmentioning

confidence: 99%

Magnetorheological Elastomer based torsional vibration isolator for application in a prototype drilling shaft

Syam

Muthalif

2021

Journal of Low Frequency Noise, Vibration and Active Control

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Smart materials properties are altered using external stimuli such as temperature, pressure and magnetic field. Magnetorheological Elastomer (MRE) is a type of smart composite material consisting of a polymer matrix embedded with ferromagnetic particles. In the presence of an external magnetic field, its mechanical properties, such as stiffness, change due to the interaction between the magnetic particles, which have applications in vibration isolation. Unwanted vibration in machines can cause severe damage and machine breakdown. In this work, a semi-active vibration isolator using MRE is proposed for a potential application in a drilling system to isolate the torsional vibration. The MRE was fabricated with a 35% mass fraction (MF) consisted of silicon rubber and iron particles. It was fitted with aluminium couplers and attached to the shaft (drill string) to study its efficiency in vibration isolation under a magnetic field. Two tests were conducted on the drilling prototype setup used in this work; the first test was a hammer impact test. The torsional transfer function TTF analysis showed that the system’s natural frequency has shifted from 13.9 Hz to 17.5 Hz by the influence of increasing magnetic field around the MRE. The results showed that the continuous rotational vibration amplitude of the prototype is attenuated by more than 40%.

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Section: Introductionmentioning

confidence: 99%

Magnetorheological Elastomer based torsional vibration isolator for application in a prototype drilling shaft

Syam

Muthalif

2021

Journal of Low Frequency Noise, Vibration and Active Control

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“…Modern society must make a great effort to promote the rational reuse of the tailings created by industrial and agricultural processing, as well as the reuse of urban solid wastes, by transforming them into economically competitive energy together with other forms of energy. These materials must have optimized properties, always bearing in mind the environment in order to produce minimum pollution during the transformation processes [1,2].…”

Section: Introductionmentioning

confidence: 99%

Amorphous Micro and Nano Silica Extracted From Rice Husks and Obtained by Acidic Prehydrolysis and Calcination: Preparation Route and Characterization

Budemberg¹,

Reis²,

Agostini³

et al. 2021

The Great World of Nanotechnology Vol II

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O conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons Atribuição-Não-Comercial NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0). Direitos para esta edição cedidos à Editora Artemis pelos autores. Permitido o download da obra e o compartilhamento, desde que sejam atribuídos créditos aos autores, e sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comercial. A responsabilidade pelo conteúdo dos artigos e seus dados, em sua forma, correção e confiabilidade é exclusiva dos autores. A Editora Artemis, em seu compromisso de manter e aperfeiçoar a qualidade e confiabilidade dos trabalhos que publica, conduz a avaliação cega pelos pares de todos manuscritos publicados, com base em critérios de neutralidade e imparcialidade acadêmica.

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“…A significant impact of the magnetic field and the strain on the rotation of the particles and their radial distribution was verified. Almeida et al [34] studied the effectiveness of MREs to control wave motion in a one-dimensional structure. It is shown that the MRE can be used to control the amplitudes of the reflected and transmitted waves from the section of beam containing the MRE.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation and experimental analysis of magneto-mechanical behavior of anti-seismic active sandwich structure

Zerrouni¹,

Aguib²,

Grine³

et al. 2019

J. vibroeng.

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This work focuses on the quasi-static behavior study for simply supported sandwich beams with aluminum faces and magnetorheological elastomer core subjected to three points bending subjected to a magneto-mechanical loading by numerical and experimental investigations. The mechanical properties of the magnetorheological elastomer core are measured experimentally and the mechanical behavior of the MRE was identified by the generalized Maxwell rheological model. Depending upon the adjustable properties of the beam, energy dissipation is by core shear. A systematic series of experiments and finite elements simulations have been performed in order to assess the static behavior of the beam. The results obtained show a significant influence of the magnetic field intensity on the flexural displacement of the beam.

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An analytical investigation into the use of magneto-rheological elastomers to suppress flexural waves in beams

Cited by 3 publications

References 5 publications

Magnetorheological Elastomer based torsional vibration isolator for application in a prototype drilling shaft

Magnetorheological Elastomer based torsional vibration isolator for application in a prototype drilling shaft

Amorphous Micro and Nano Silica Extracted From Rice Husks and Obtained by Acidic Prehydrolysis and Calcination: Preparation Route and Characterization

Numerical simulation and experimental analysis of magneto-mechanical behavior of anti-seismic active sandwich structure

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