An electroactive polymer based concept for vibration reduction via adaptive supports

Wolf, Kai; Röglin, Tobias; Haase, Frerk; Finnberg, Torsten; Steinhoff, Bernd

doi:10.1117/12.776294

Cited by 4 publications

(3 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is reported that dielectric elastomer possesses damping properties naturally [29] and can be used for vibration reduction. However, fewer reports have been released concerning the effect of damping on the actuation and nonlinear vibrations of dielectric elastomer.…”

Section: Introductionmentioning

confidence: 99%

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

Sheng¹,

Chen²,

Li³

et al. 2014

Smart Mater. Struct.

102

View full text Add to dashboard Cite

This paper proposes a free energy model to study the dynamic characteristics of a dielectric elastomer membrane undergoing in-plane deformation, subject to the combined loads of a mechanical press and an electric field. The natural frequency of the small-amplitude perturbation around the state of equilibrium is calculated with focus on the damping effects and the resonance phenomenon. The numerical results, such as the oscillation, phase diagrams and Poincaré maps, are presented to show the influence of the damping on the nonlinear dynamic characteristics of the dielectric elastomer. The numerical results indicate that pre-stresses, damping effects and applied voltages could tune the natural frequency and modify the dynamic behavior of the dielectric elastomer. There is a stability transition when taking the damping effect into account. The damping effect could cause the dynamic responses to constant vibration and decrease the amplitude. These conclusions may guide the exploration of high-performance dielectric elastomers under dynamic mechanical and electrical loads.

show abstract

Section: Introductionmentioning

confidence: 99%

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

Sheng¹,

Chen²,

Li³

et al. 2014

Smart Mater. Struct.

102

View full text Add to dashboard Cite

show abstract

“…Characteristics of DEAs are their high flexibility, stretchability, light weight, and fast response 5,6 . DEAs are found in vibration applications [7][8][9][10][11] . Chen et al applied a vibration generated by a rolled DEA for flapping wings of aerial robot 7 .…”

Section: Introductionmentioning

confidence: 99%

Dielectric elastomer actuator with electro adhesion for a vibration excitation of a conductive structure

Hiruta,

Ohno,

Takagi

2024

Electroactive Polymer Actuators and Devices (EAPAD) XXVI

View full text Add to dashboard Cite

This study proposes a vibration excitation technique using a dielectric elastomer actuator (DEA) that can attach to a conductive structure based on an electro adhesion technique. Vibration responses of mechanical structures are experimentally analyzed to assess their mechanical characteristics. Conventionally, impulse hammers, heavy and rigid exciters, and lead zirconate titanate (PZT) actuators are applied to excite the vibration of the structure in a vibration experiment. However, the other vibration excitation technique should be applied for flexible structures with curved surface to evaluate their vibration response accurately without damages on them. Herein, a DEA can be applied to the vibration excitation taking advantage of its features of high flexibility, stretchability, and fast response. Conventional DEAs are attached to the target structures with adhesives degrading DEAs' reusability. In this study, the electro adhesion technique, which can generate an attraction force were applied to the DEA. The proposed DEA can attach to the target without adhesives. The proposed DEA was fabricated by stacking layers that can generate the excitation force and that can generate the attraction force of the electro adhesion. Then, a vibration experiment for an aluminum pipe structure was conducted applying the DEA excitation. Finally, the effectiveness of the proposed vibration excitation technique was evaluated based on vibration responses of the target structure.

show abstract

“…Feng et al (2014) performed an electromechanical analysis on DE-based microbeam with large vibration amplitude and showed the influence of the initial pre-stretching stress and the ambient pressure on the resonant frequency of the resonator. The limitations of these studies are as follows: (1) in natural conditions, some DEs show the viscoelastic property, but the authors have not addressed this aspect of the DE-based resonators (Wolf et al, 2008). DEs demonstrate the strain-stiffening behavior (Amabili, 2018;Horgan, 2015;Wang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Nonlinear dynamic responses of electrically actuated dielectric elastomer-based microbeam resonators

Alibakhshi

Heidari

2021

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

This paper aims to investigate the chaotic and nonlinear resonant behaviors of a dielectric elastomer-based microbeam resonator, incorporating material and geometric nonlinearities. The von Kármán strain-displacement equation is utilized to model the geometric nonlinearity. Material nonlinearity is described via the hyperelastic Gent model and Neo-Hookean constitutive law. The applied electrical loading to the elastomer includes both static and sinusoidal voltages. The governing equations of motion are formulated based on an energy approach and generalized Hamilton’s principle. Employing a single-mode Galerkin technique, the governing equations are obtained only in terms of time derivatives. The governing ordinary differential equations are solved by means of the multiple scale method and a time-integration-based solver. The nonlinear resonance characteristics are explored through the frequency-amplitude plots. The nonlinear oscillations of the system are analyzed making use of visual techniques such as phase plane diagram, Poincaré section and time history, and fast Fourier transform. Based on the results obtained, the resonant behavior is the hardening type. The vibration of the dielectric elastomer based-microbeam is the quasiperiodic response.

show abstract

An electroactive polymer based concept for vibration reduction via adaptive supports

Cited by 4 publications

References 10 publications

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

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

Dielectric elastomer actuator with electro adhesion for a vibration excitation of a conductive structure

Nonlinear dynamic responses of electrically actuated dielectric elastomer-based microbeam resonators

Contact Info

Product

Resources

About