Electrically Driven Liquid Crystal Elastomer Self-Oscillators via Rheostat Feedback Mechanism

Polymers, Год журнала: 2025, Номер 17(5), С. 617 - 617

Опубликована: Фев. 25, 2025

The reliance of feedback mechanisms in conventional light-fueled self-oscillating systems on spatially distributed light and intricately designed structures impedes their application development micro-robots, miniature actuators, other small-scale devices. This paper presents a straightforward rheostat mechanism to create an electrically driven liquid crystal elastomer (LCE) self-oscillator which comprises LCE fiber, rheostat, spring, mass. Based the electrothermally responsive model, we first derive governing equation for system's dynamics subsequently formulate asymptotic equation. Numerical calculations reveal two motion phases, i.e., static self-oscillating, elucidate behind self-oscillation. By employing multi-scale method, identify Hopf bifurcation establish analytical solutions amplitude frequency. influence various system parameters frequency self-oscillation was analyzed, with numerical being validated against results ensure consistency. proposed can be extended cases rheostats that have more general resistance properties offers advantages such as simple design, adjustable dimensions, rapid operation. findings are expected inspire broader design concepts applications soft robotics, sensors, adaptive structures.

Язык: Английский

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A Light-Steered Self-Rowing Liquid Crystal Elastomer-Based Boat

Polymers, Год журнала: 2025, Номер 17(6), С. 711 - 711

Опубликована: Март 7, 2025

Conventional machines often face limitations due to complex controllers and bulky power supplies, which can hinder their reliability operability. In contrast, self-excited movements harness energy from a stable environment for self-regulation. this study, we present novel model of self-rowing boat inspired by paddle boats. This is powered liquid crystal elastomer (LCE) turntable that acts as motor operates under consistent illumination. We investigated the dynamic behavior uniform illumination integrating photothermal reaction theory LCEs with nonlinear framework. The primary equations were solved using fourth-order Runge–Kutta method. Our findings reveal exhibits two modes motion steady illumination: static pattern pattern. transition between these influenced interaction driving friction torques generated energy. study quantitatively analyzes fundamental conditions necessary initiating examines how various dimensionless parameters affect speed system. proposed system offers several unique advantages, including simple structure, easy control, independence electronic components. Furthermore, it has potential miniaturization integration, enhancing its applicability in miniature systems.

Язык: Английский

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Light-fueled self-ejecting liquid crystal elastomer launcher inspired by lizard tail autotomy

Chaos Solitons & Fractals, Год журнала: 2025, Номер 194, С. 116265 - 116265

Опубликована: Март 6, 2025

Язык: Английский

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Light-powered self-striking liquid crystal elastomer hammers inspired by mantis shrimp

Communications in Nonlinear Science and Numerical Simulation, Год журнала: 2025, Номер unknown, С. 108802 - 108802

Опубликована: Март 1, 2025

Язык: Английский

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Bistable click mechanism for dipteran flight robot

International Journal of Mechanical Sciences, Год журнала: 2024, Номер 281, С. 109555 - 109555

Опубликована: Июль 11, 2024

Язык: Английский

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Focus-Switchable Piezoelectric Actuator: A Bionic Thin-Plate Design Inspired by Conch Structure

Sensors and Actuators A Physical, Год журнала: 2024, Номер unknown, С. 115921 - 115921

Опубликована: Сен. 1, 2024

Язык: Английский

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