Self-rotation-eversion of an anisotropic-friction-surface torus

International Journal of Mechanical Sciences, Год журнала: 2024, Номер 281, С. 109584 - 109584

Опубликована: Июль 22, 2024

Язык: Английский

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Self-rotation of a liquid crystal elastomer rod under constant illumination

International Journal of Mechanical Sciences, Год журнала: 2024, Номер 283, С. 109665 - 109665

Опубликована: Авг. 23, 2024

Язык: Английский

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Self-spinning of liquid crystal elastomer tubes under constant light intensity

Communications in Nonlinear Science and Numerical Simulation, Год журнала: 2024, Номер 139, С. 108296 - 108296

Опубликована: Авг. 23, 2024

Язык: Английский

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Stepwise self-oscillation of a photo-oscillator via time delay

International Journal of Mechanical Sciences, Год журнала: 2025, Номер 288, С. 110046 - 110046

Опубликована: Фев. 1, 2025

Язык: Английский

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Self-oscillation of a liquid crystal elastomer string-mass system under constant gradient temperature

Journal of Applied Mechanics, Год журнала: 2024, Номер 91(10)

Опубликована: Июнь 14, 2024

Abstract Recent experiments have found that a fiber-mass system can self-oscillate along the vertical direction under non-uniform temperature field, which necessitates significant space. To address challenge in adapting to situations with limited space, current work introduces self-oscillating string-mass system, comprising of mass ball and thermally responsive liquid crystal elastomer string exposed constant gradient temperature. By employing theoretical modeling numerical simulation, we identified two motion regimes namely, static regime self-oscillation regime, elucidated mechanism self-oscillation. Utilizing analytical method, derived expressions for bifurcation point, amplitude, frequency self-oscillation, investigated impact parameters on these aspects, were verified by solutions. Compared has superior stability deal small horizontal disturbances, amplify its amplitude thermal deformation material, saves amount Given attributes, such presents novel possibilities designing energy harvesters, active machinery, soft robots.

Язык: Английский

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Chaotic self-oscillation of liquid crystal elastomer double-line pendulum under a linear temperature field

Chaos Solitons & Fractals, Год журнала: 2024, Номер 189, С. 115653 - 115653

Опубликована: Окт. 17, 2024

Язык: Английский

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Light-fueled self-rotation of a liquid crystal elastomer rod enabled by lateral constraint

Theoretical and Applied Mechanics Letters, Год журнала: 2025, Номер unknown, С. 100569 - 100569

Опубликована: Янв. 1, 2025

Язык: Английский

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Multimodal self-operation of a liquid crystal elastomer spring-linkage mechanism under constant light

International Journal of Solids and Structures, Год журнала: 2024, Номер 302, С. 112998 - 112998

Опубликована: Июль 23, 2024

Язык: Английский

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Modeling of a light-fueled liquid crystal elastomer-steered self-wobbling tumbler

Chaos Solitons & Fractals, Год журнала: 2024, Номер 191, С. 115941 - 115941

Опубликована: Дек. 21, 2024

Язык: Английский

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The Light-Fueled Stable Self-Rolling of a Liquid Crystal Elastomer-Based Wheel

Polymers, Год журнала: 2025, Номер 17(4), С. 436 - 436

Опубликована: Фев. 7, 2025

Self-excited systems rely on stable external stimuli to initiate and sustain oscillations via internal processes. However, these can compromise system stability increase friction, limiting their practical applications. To overcome this issue, we propose the light-fueled self-rolling of a liquid crystal elastomer (LCE)-based wheel. A photothermal response model based an LCE was used analyze temperature distribution within rods. The driving torque for is generated by contraction resulting from LCE's response, which displaces wheel's center mass. We then derived equilibrium equations identified critical conditions achieving motion. Through interaction between field torque, wheel achieves continuous absorbing thermal energy counteract damping dissipation. Numerical simulations revealed that velocity influenced several key parameters, including heat flux, coefficient, gravitational acceleration, initial rolling coefficient. proposed LCE-based enhances significantly reduces frictional losses. These characteristics make it promising candidate applications in autonomous drive systems, micro-transportation devices, conversion technologies.

Язык: Английский

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