Geometric optimization of dielectric elastomer electrodes for dynamic applications

Garnell, Emil; Aksoy, Bekir; Rouby, Corinne; Shea, Herbert; Doaré, Olivier

doi:10.1016/j.apacoust.2021.108120

Cited by 3 publications

(3 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The various nonlinear effects, such as deformation-dependent permittivity, viscohyperelastic behavior, and dielectric relaxation, form a challenging nonlinear optimization problem for DEA designers [6,[107][108][109][110][111][112]. For instance, Chen et al, proposed using level-set methods for optimizing the electrode geometry for planar DEAs for moving points on the plane [108].…”

Section: Design Optimization Techniquesmentioning

confidence: 99%

“…From the study, the genetic algorithm was noted to have issues with creating patterns with holes or disconnections. Lastly, Garnell et al [111] utilized a level-set method to optimize the electrode topology for a dynamic loud-speaker application. The optimized geometries were experimentally validated to match the computational model developed.…”

Section: Design Optimization Techniquesmentioning

confidence: 99%

See 1 more Smart Citation

Dielectric Elastomer-Based Actuators: A Modeling and Control Review for Non-Experts

Medina,

Farmer,

Liu

2024

Actuators

View full text Add to dashboard Cite

Soft robotics are attractive to researchers and developers due to their potential for biomimicry applications across a myriad of fields, including biomedicine (e.g., surgery), the film industry (e.g., animatronics), ecology (e.g., physical ‘animats’), human–robot interactions (e.g., social robots), and others. In contrast to their rigid counterparts, soft robotics offer obvious actuation benefits, including their many degrees of freedom in motion and their potential to mimic living organisms. Many material systems have been proposed and used for soft robotic applications, involving soft actuators, sensors, and generators. This review focuses on dielectric elastomer (DE)-based actuators, which are more general electro-active polymer (EAP) smart materials. EAP-based soft robots are very attractive for various reasons: (a) energy can be efficiently (and readily) stored in electrical form; (b) both power and information can be transferred rapidly via electrical phenomena; (c) computations using electronic means are readily available. Due to their potential and benefits, DE-based actuators are attractive to researchers and developers from multiple fields. This review aims to (1) provide non-experts with an “easy-to-follow” survey of the most important aspects and challenges to consider when implementing DE-based soft actuators, and (2) emphasize current solutions and challenges related to the materials, controls, and portability of DE-based soft-actuator systems. First, we start with some fundamental functions, applications, and configurations; then, we review the material models and their selection. After, we outline material limitations and challenges along with some thermo-mechano-chemical treatments to overcome some of those limitations. Finally, we outline some of the control schemes, including modern techniques, and suggest using rewritable hardware for faster and more adaptive controls.

show abstract

Section: Design Optimization Techniquesmentioning

confidence: 99%

Section: Design Optimization Techniquesmentioning

confidence: 99%

Dielectric Elastomer-Based Actuators: A Modeling and Control Review for Non-Experts

Medina,

Farmer,

Liu

2024

Actuators

View full text Add to dashboard Cite

show abstract

“…The frequency response was well predicted in a broad frequency range. Moreover, the relation between the electrode shape and the dynamical and acoustical behavior of membranes was described for the first time with the perspective to control selectively the contribution of eigenmodes to the radiated sound [9] . Although several progresses have been made in the field in these recent years, still a high actuating electric field (~10V/µm) is needed to induce large mechanical deformation of DEs, thus limiting their practical applications [10] .…”

mentioning

confidence: 99%

Enhanced actuation strain of PDMS based loudspeaker membrane by using core-shell structured CNT-SiO2 nano-inclusions

Alfonso¹,

Garnell²,

He³

et al. 2022

MATHMOD 2022 Discussion Contribution Volume

View full text Add to dashboard Cite

Study of Potential Factors and their Interaction in Dielectric Elastomer based Cell Stretcher

Holzer,

Hartmann,

Öz

et al. 2023

2023 26th International Conference on Electrical Machines and Systems (ICEMS)

View full text Add to dashboard Cite

Geometric optimization of dielectric elastomer electrodes for dynamic applications

Cited by 3 publications

References 34 publications

Dielectric Elastomer-Based Actuators: A Modeling and Control Review for Non-Experts

Dielectric Elastomer-Based Actuators: A Modeling and Control Review for Non-Experts

Enhanced actuation strain of PDMS based loudspeaker membrane by using core-shell structured CNT-SiO2 nano-inclusions

Study of Potential Factors and their Interaction in Dielectric Elastomer based Cell Stretcher

Contact Info

Product

Resources

About