Dynamic analysis of dielectric elastomer actuators

Xu, Bai‐Xiang; Mueller, Ralf; Theis, Anika; Klassen, Markus; Groß, Dietmar

doi:10.1063/1.3694267

Cited by 123 publications

(98 citation statements)

References 14 publications

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“…The higher the damping, the less time required to reach a stationary state. Xu et al (2012) considered the case where the DE structure deforms only under electric loading. Due to the homogeneity of the problem and the incompressibility of the material, the stretches in the three main directions are 1 ,1 ,   and λ, where λ is the stretch in the thickness direction.…”

Section: Theoretical Workmentioning

confidence: 99%

Typical dielectric elastomer structures: dynamics and application in structural vibration control

Huang

Jin

Ruan

et al. 2016

J. Zhejiang Univ. Sci. A

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Abstract:In recent years, dielectric elastomer (DE) structures have received great attention in various fields of engineering, such as artificial muscle, soft robot, resonator, and structural vibration control, due to its prominent advantages. In the present paper, the theoretical and experimental research into the dynamical behavior of DE structures and their application for vibration control is reviewed. In the theoretical research into dynamical behavior, from a mechanics viewpoint, DE structures are usually categorized into four types, i.e., spherical, rectangular, tubular, and circular. For each type of DE structure, the mathematical description is given and the dynamical behavior, such as the resonant property, jump, and bifurcation, is summarized. Moreover, the work on dynamical experiments is briefly outlined. In the application for vibration control, stack-type and tubular-type DE structures usually used as actuators are surveyed. The established control algorithms for the controlled systems using DE actuators are described. The challenges for the research into the dynamics of DE structure and its application for vibration control and some promising theories which may be applied for the research are pointed out.

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Section: Theoretical Workmentioning

confidence: 99%

Typical dielectric elastomer structures: dynamics and application in structural vibration control

Huang

Jin

Ruan

et al. 2016

J. Zhejiang Univ. Sci. A

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“…Recently, the dynamics characteristics of dielectric elastomers have received much attention. Xu et al [8] proposed an analytical model for the dynamics analyses of a homogeneously deformed dielectric elastomer actuator. Ren [9] analyzed the dynamic response of hyper-elastic cylindrical shells under periodic load.…”

Section: Introductionmentioning

confidence: 99%

Dynamic performance of a dielectric elastomer balloon actuator

Chen

Wang

2015

Meccanica

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A dielectric elastomer is able to act as an actuator when it is subject to an electric field. This paper deals with the theoretical analysis of a dielectric elastomer balloon actuator that is driven by a fixed mass of high-pressure air inside and the periodic voltage applied across the balloon wall. The equation of motion involving high nonlinearity is derived and the dynamic response of the balloon subject to a combination of pressure and periodic voltage is presented. Considering the allowable deformation of a dielectric elastomer is strictly limited by the material failures, this paper proposes a novel concept of the actuation capability of a dielectric elastomer balloon actuator concerning not only quasi-static states but also dynamic states, and analyzes the effect that the material failures exert on the actuation capability in terms of various operating conditions of the balloon actuator. The simulation results demonstrate that the operation conditions of the balloon actuator have a considerable impact on the actuation capability. This new concept offers a significant guidance for the dynamics applications of the balloon actuator and is applicable to other types of dielectric elastomer actuators.

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“…The force/displacement induced by the oscillation of dielectric elastomer actuators plays a significant role in determining the user's tactile sensation. Most of the existing dynamic analyses of dielectric elastomer actuators focused on the output displacement -the amplitude of oscillation [7][8][9][13][14][15]. Less attention was paid to the output force -the interaction between the vibration shaker and the subject requiring haptic feedback (say, the user).…”

mentioning

confidence: 99%

“…Its oscillation is strongly nonlinear due to large deformation and nonlinear electromechanical coupling [7][8][9].…”

mentioning

confidence: 99%

Tunable force/displacement of a vibration shaker driven by a dielectric elastomer actuator

Gupta

Godaba

Zhao

et al. 2015

Extreme Mechanics Letters

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Dynamic analysis of dielectric elastomer actuators

Cited by 123 publications

References 14 publications

Typical dielectric elastomer structures: dynamics and application in structural vibration control

Typical dielectric elastomer structures: dynamics and application in structural vibration control

Dynamic performance of a dielectric elastomer balloon actuator

Tunable force/displacement of a vibration shaker driven by a dielectric elastomer actuator

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