Results 41 to 50 of about 2,776 (213)

Study on bandgap vibration isolation of super-cell phononic crystals based on magnetorheological elastomers

open access: yesAIP Advances, 2021
A two-dimensional super-cell phononic crystal semi-active isolator based on magnetorheological elastomers is designed, which can be used for vibration isolation of mechanical devices at medium and high frequencies.
Guo-Jun Yu   +4 more
doaj   +1 more source

Isolation and damping properties of magnetorheologic elastomers

open access: yesJournal of Physics: Conference Series, 2009
This paper considers two systems based on a magnetorheological elastomer (MRE): a MRE isolator under a frequency varying harmonic excitation and a MRE Dynamic Vibration Absorber (DVA) mounted on a frequency-varying structure under a random excitation. It is shown that the commandability of the elastomer improves the isolation performances in the first ...
Collette, Christophe   +5 more
openaire   +3 more sources

Elaboration and Identification of the Mechanical Properties of Magnetorheological Elastomer in Frequency-temperature Dependence

open access: yesMedžiagotyra
Determining the mechanical properties of magnetorheological elastomers (MREs) is fundamental for creating smart materials and devices with desired properties and functionalities. While the MREs properties, in shear mode, have been extensively researched,
Mohamed TOURAB   +8 more
doaj   +1 more source

Adaptive Damping of a Double-Beam Structure Based on Magnetorheological Elastomer

open access: yesShock and Vibration, 2019
A method of vibration reduction based on activation of an MRE block that couples twin cantilever beams at their free ends is investigated. Four types of magnetorheological elastomers have been manufactured, and their rheological properties in a range of ...
Tomasz Szmidt   +4 more
doaj   +1 more source

Magnetorheological Elastomers and Their Applications

open access: yes, 2013
Magnetorheological elastomers (MRE) are smart materials whose modulus or mechanical performances can be controlled by an external magnetic field. In this chapter, the current research on the MRE materials fabrication, performance characterisation, modelling and applications is reviewed and discussed.
Li, W H, Zhang, X Z, Du, H
openaire   +3 more sources

SEMI-ACTIVE DAMPING PERFORMANCE OF IRON PARTICLE FILLED SILICONE RUBBER

open access: yesActa Polytechnica CTU Proceedings, 2016
The aim of this work was to design, produce and evaluate a demonstrator to visualize the magneto-induced damping behaviour of materials. In contrast to standard materials, the damping coefficient of iron particle filled silicone rubbers can be controlled
Florian Dirisamer   +3 more
doaj   +1 more source

Visco-hyperelastic model with damage for simulating cyclic thermoplastic elastomers behavior applied to an industrial component [PDF]

open access: yes, 2018
In this work a nonlinear phenomenological visco-hyperelastic model including damage consideration is developed to simulate the behavior of Santoprene 101-73 material.
Elduque, D.   +5 more
core   +4 more sources

Microengineered Gradient Hydrogels for Mechanobiology

open access: yesAdvanced Healthcare Materials, EarlyView.
Gradient hydrogels are used to mimic the mechanical heterogeneity in native tissues, offering powerful in vitro platforms to study cell‐material interactions in diverse pathophysiological contexts. Here, we present a comprehensive review of the design and experimental considerations for stiffness gradient hydrogels, discussing exemplary achievements ...
Shin Wei Chong   +4 more
wiley   +1 more source

On the general governing equations of electromagnetic acoustic transducers [PDF]

open access: yes, 2013
In this paper, we present the general governing equations of electrodynamics and continuum mechanics that need to be considered while mathematically modelling the behaviour of electromagnetic acoustic transducers (EMATs).
Saxena, Prashant
core   +2 more sources

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

open access: yesAdvanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia   +3 more
wiley   +1 more source

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