Thermo-electro-mechanical effects on nonlinear dynamics of smart dielectric elastomer minimum energy structures

European Journal of Mechanics - A/Solids, Год журнала: 2024, Номер 105, С. 105222 - 105222

Опубликована: Янв. 11, 2024

Язык: Английский

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Electromechanical performance of dielectric elastomer composites: Modeling and experimental characterization

Composite Structures, Год журнала: 2023, Номер 320, С. 117130 - 117130

Опубликована: Май 17, 2023

Язык: Английский

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Dynamic Modeling and Analysis of Soft Dielectric Elastomer Balloon Actuator with Polymer Chains Crosslinks, Entanglements and Finite Extensibility

International Journal of Applied Mechanics, Год журнала: 2024, Номер 16(03)

Опубликована: Янв. 8, 2024

Soft dielectric elastomers (SDEs) represent a category of intelligent electroactive materials utilized in electro-mechanical actuation technology. The dynamic performance these during is notably affected by intrinsic factors like crosslinks, entanglements and the limited extensibility polymer chains. In this paper, we provide theoretical framework for modeling behavior balloon actuator made up soft elastomer. To account inherent characteristics chain networks, employ physics-based nonaffine material model proposed Davidson Goulbourne. governing equation motion established using Euler–Lagrange’s conservative systems. reported then to explore transient response, stability, periodicity resonance properties elastomer (DEB) varying levels finite parameters. assess stability nonlinear vibrations exhibited DEB actuator, present Poincaré maps phase-plane plots. results demonstrate that changes density lead transitions between quasi-periodic aperiodic vibrations. These findings an essential initial step toward design production actuators with diverse applications future technologies.

Язык: Английский

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Dynamic modeling of a soft robotic fish driven by dielectric elastomer based on the ANCF and IB-LBM

Mechanical Systems and Signal Processing, Год журнала: 2024, Номер 213, С. 111366 - 111366

Опубликована: Март 26, 2024

Язык: Английский

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Thermo-electro-magnetostrictive unequal-biaxial taut states in thin elastomeric membranes

Proceedings of the Royal Society A Mathematical Physical and Engineering Sciences, Год журнала: 2025, Номер 481(2311)

Опубликована: Апрель 1, 2025

Wrinkles, with regular periodic patterns in thin elastomeric membranes, occur to relax in-plane compressive stresses through out-of-plane deformations. Existing studies on such wrinkling have primarily ignored the thermo-electro-magnetostrictive unequal-biaxial taut states, focusing instead equal-biaxial deformations of membranes. Soft actuators made electro-magneto-active (EMA) used mainly soft robotics, often exhibit a variety instabilities, which may adversely affect their performance and lead actuator failure. Conversely, fine-tuned wrinkles can be proactively specific applications that necessitate an intentional loading transformation dual responsiveness electromagnetic fields. This paper theoretically develops physics-based deformation model EMA incorporating classical tension field theory predict thresholds domains plane principal stretches. The solution is then experimentally verified for readily available membrane. In addition, analytical findings tie unanswered ideal remark deviations states biaxiality ratio unequal-biaxially deformed wrinkle appearance EMA-based smart

Язык: Английский

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Design and control of multi-branch and multi-segment-based dielectric elastomer actuator and biomimetic applications

International Journal of Engineering Science, Год журнала: 2025, Номер 212, С. 104271 - 104271

Опубликована: Апрель 12, 2025

Язык: Английский

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Compliant frame geometry for DEMES-based gripper and flapping wing actuators: A comprehensive design study

International Journal of Solids and Structures, Год журнала: 2024, Номер 302, С. 112969 - 112969

Опубликована: Окт. 1, 2024

Язык: Английский

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A nonsingular fast terminal sliding mode predictive controller for underwater soft crawling robots with parameter uncertainty

Ocean Engineering, Год журнала: 2023, Номер 287, С. 115822 - 115822

Опубликована: Сен. 18, 2023

Язык: Английский

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Approximate analytical solutions of nonlinear vibration and bifurcation of dielectric elastomer balloon

European Journal of Mechanics - A/Solids, Год журнала: 2024, Номер 107, С. 105374 - 105374

Опубликована: Июнь 15, 2024

Язык: Английский

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