Semi-Active Controllable Stiffness Engine Mount Utilizing Natural Rubber-Based Magnetorheological Elastomers

Song, Rusdi Mat; Mazlan, Saiful Amri; Johari, Norhasnidawani; Imaduddin, Fitrian; Aziz, Siti Aishah Abdul; Fatah, Abdul Yasser Abd; Ubaidillah, U.

doi:10.3389/fmats.2022.875787

Cited by 3 publications

(1 citation statement)

References 43 publications

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“…Magnetorheological elastomers (MREs) are polymer composites in which the matrix is a polymer elastomer and particles interacting in a magnetic field are used as a filler. The most commonly used polymer matrices are silicones [21][22][23][24][25], polyurethanes [26,27], and diene rubbers (natural and synthetic) [28][29][30][31]. While the following ferromagnetic particles are used as fillers: iron powder, carbonyl-iron powder, magnetite (Fe 3 O 4 ), cobalt, cobalt ferrites, nickel, and others [21,25,29,[32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Dielectric elastomer actuator biased by magnetorheological elastomer with permanent magnet

Bernat,

Kołota,

Gajewski

et al. 2023

Smart Mater. Struct.

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Dielectric elastomer actuators have become one of the most important smart material transducers in recent times. One of the crucial aspects in this field is the application of bias to find the best operating conditions. The basic task is to find the proper bias configuration to obtain a wide range of displacements in the actuator. In the literature, various biases, such as mechanical springs, permanent magnets, or pneumatic springs, are studied. In our work, the magnetorheological elastomer is applied to build a novel bias that ensures a wide range of displacement. Because of the softness and the compliant chemical structure, the magnetorheological elastomer can be easily integrated with the dielectric elastomer actuator. The magnetorheological elastomer as a bias for a dielectric elastomer actuator is verified in the series of experiments. Finally, the discussion on the advantages and disadvantages of the new bias type is performed.

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Section: Introductionmentioning

confidence: 99%

Dielectric elastomer actuator biased by magnetorheological elastomer with permanent magnet

Bernat,

Kołota,

Gajewski

et al. 2023

Smart Mater. Struct.

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Parameter optimization of anisotropic polarization in magnetorheological elastomers for enhanced impact absorption capability using the Taguchi method

Sobri,

Hudha,

Kadir

et al. 2024

Journal of the Mechanical Behavior of Materials

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Magnetorheological elastomers (MREs) are intelligent materials that exhibit changes in their properties when exposed to a magnetic field. By applying a magnetic field during the curing process, MRE can be made anisotropic. This study focuses on optimizing the fabrication process parameters using the design of an experimental approach, namely the Taguchi method. The parameters to be optimized for MRE fabrication include the number of coil turns, coil diameter, curing current, and curing time. Twenty-five sets of anisotropic MRE were fabricated and subjected to drop impact testing to evaluate their impact absorption capability. The results were further examined for a more comprehensive analysis using the signal-to-noise ratio, analysis of means, and analysis of variance. This rigorous examination aimed to pinpoint the optimal parameters and the key factors influencing the fabrication of the MRE. From the analysis result, it can be seen that the number of coil turns contributed to 63.36% of the entire MRE fabrication process. Furthermore, a well-defined composition for the MRE was identified, consisting of 200 coil turns, a coil diameter of 1.0 mm, an applied current of 1.2 A, and a curing time of 20 min.

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Review of Soft Actuators Controlled with Electrical Stimuli: IPMC, DEAP, and MRE

et al. 2023

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Soft actuators have been developed for a variety of applications, including soft grippers, artificial muscles, wearables, tactile devices, and medical devices. In this review, we will discuss a group of chemical materials and their robotic applications in soft actuators controlled with electrical stimuli. Soft actuators provide a deformable body and allow interaction with the environment to achieve the desired actuation pattern. We will also discuss the principles of operation and functionality and focus on important real-life applications of three groups of soft actuators: ionic polymer–metal composites (IPMCs), dielectric electroactive polymers (DEAPs), and magnetorheological elastomers (MREs). This review article aims to provide researchers interested in the field of soft robotics with a guide to various state-of-the-art chemistry methods used in electrically activated soft actuators, as well as the application areas for such devices.

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Semi-Active Controllable Stiffness Engine Mount Utilizing Natural Rubber-Based Magnetorheological Elastomers

Cited by 3 publications

References 43 publications

Dielectric elastomer actuator biased by magnetorheological elastomer with permanent magnet

Dielectric elastomer actuator biased by magnetorheological elastomer with permanent magnet

Parameter optimization of anisotropic polarization in magnetorheological elastomers for enhanced impact absorption capability using the Taguchi method

Review of Soft Actuators Controlled with Electrical Stimuli: IPMC, DEAP, and MRE

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