Nonlinear dynamic characteristics of a dielectric elastomer membrane undergoing in-plane deformation

Sheng, Junjie; Chen, Hualing; Li, Bo; Wang, Yongquan

doi:10.1088/0964-1726/23/4/045010

Cited by 102 publications

(77 citation statements)

References 35 publications

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“…Sheng et al (2014) studied the special case where lengths L 1 =L 2 and the DE structure is isotropic and is subject to equal biaxial stresses, i.e., the two in-plane stretches are equal. The mechanical forces are static while the voltage varies sinusoidally.…”

Section: Theoretical Workmentioning

confidence: 99%

“…DE structure is mostly expected to work under dynamic excitation in many applications, e.g., pump, loudspeaker, and vibrotactile displays for mobile application. Thus, dynamical behavior, such as natural frequency and nonlinear response, was mostly investigated theoretically and experimentally (Fox and Goulbourne, 2008;Son and Goulbourne, 2010;Zhu et al, 2010a;2010b;Liu et al, 2014;Sheng et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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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%

Section: Introductionmentioning

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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“…Poincaré map can be used to detect the stability transition of the system [20,23,28]. The Poincaré maps for the oscillation with the frequency Ω = 10, 1, 0.1, and 0.0213 are shown in Figure 8.…”

Section: Dynamic Responsementioning

confidence: 99%

“…Li et al [22] presented an analysis of the nonlinear dynamics of a DE as electromechanical resonator (DEER) configured as a pure-shear actuator. An investigation in our previous paper [23] reported the nonlinear dynamic characteristics of a DE membrane undergoing in-plane deformation. Wang et al [24] investigated the strain-stiffening effect on the nonlinear vibration of a circular DE membrane subjected to electromechanical load.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Electromechanical Response of a Viscoelastic Dielectric Elastomer under Cycle Electric Loads

Sheng

Zhang

2018

International Journal of Polymer Science

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Dielectric elastomer (DE) is able to produce large electromechanical deformation which is time-dependent due to the viscoelasticity. In the current study, a thermodynamic model is set up to characterize the influence of viscoelasticity on the electromechanical and dynamic response of a viscoelastic DE. The time-dependent dynamic deformation, the hysteresis, and the dynamic stability undergoing viscoelastic dissipative processes are investigated. The results show that the electromechanical stability has strong frequency dependence; the viscoelastic DE can attain a larger stretch in the dynamic response than the quasistatic actuation. Furthermore, with the decreasing frequency of the applied electric load, the viscoelastic DE system will present dynamic stability evolution from an aperiodic motion to the quasiperiodic motion. The DE system may also experience a stability evolution from a single cycle motion to multicycle motion with the increasing relaxation times. The value and variation trend of the amplitude of the stretch are highly dependent on the excitation frequency and the relaxation time.

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“…Ren [9] analyzed the dynamic response of hyper-elastic cylindrical shells under periodic load. In addition, Sheng et al [10] proposed a free energy model to investigate the dynamics of a dielectric elastomer membrane undergoing inplane deformation.…”

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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Nonlinear dynamic characteristics of a dielectric elastomer membrane undergoing in-plane deformation

Cited by 102 publications

References 35 publications

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

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

Dynamic Electromechanical Response of a Viscoelastic Dielectric Elastomer under Cycle Electric Loads

Dynamic performance of a dielectric elastomer balloon actuator

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