Self-sustained chaotic movement of electrothermal responsive liquid crystal elastomer pendulum DOI
Peibao Xu,

Xugui Ren,

Yaqi Chen

et al.

Mechanics of Advanced Materials and Structures, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 17

Published: Nov. 11, 2024

Self-sustained movement has the ability to absorb energy from external environment maintain its own movement. In present work, a self-sustained chaotic simple pendulum system featuring an electrothermal responsive liquid crystal elastomers fiber and mass ball is proposed examined. The power-on state achieved in through infusion of metal into this fiber. Which enables shrink, feeding compensate for dissipation resulting damping, thus allowing On basis existing dynamic elastomer model, governing equations are established, behavior under stimulation theoretically explored. Numerical findings suggest that presents three different patterns, namely stationary pattern, oscillatory pattern. Moreover, five parameters elastic coefficient, viscosity gravitational acceleration, shrinkage coefficient strength work can contribute better understanding systems driven by materials offer guidance further exploration applications such as chaos machine, mind-brain analysis.

Language: Английский

Electrothermally-induced controllable self-actuated oscillation in liquid crystal elastomer mechanical metamaterials under steady-state circuits DOI
Xiaodong Liang, Bing Hu

Archive of Applied Mechanics, Journal Year: 2024, Volume and Issue: 95(1)

Published: Nov. 23, 2024

Language: Английский

Citations

1

Self-Oscillation of Liquid Crystal Elastomer Fiber-Slide System Driven by Self-Flickering Light Source DOI Open Access
Dali Ge,

Qingrui Hong,

Xin Liu

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(23), P. 3298 - 3298

Published: Nov. 26, 2024

Self-oscillation, a control approach inspired by biological systems, demonstrates an autonomous, continuous, and regular response to constant external environmental stimuli. Until now, most self-oscillation systems have relied on static environment that continuously supplies energy, while materials typically absorb ambient energy only intermittently. In this article, we propose innovative of liquid crystal elastomer (LCE) fiber-slide system driven self-flickering light source, which can efficiently regulate the input in sync with self-oscillating behavior under voltage. This primarily consists photo-responsive LCE fiber, slider includes conductive segment insulating segment, track. Using dynamic model, derive governing equation for motion fiber-slider system. Numerical simulations show voltage exhibits two distinct phases, namely stationary phase phase. The occurs due photo-induced contraction fiber when source is activated. We also investigate critical conditions required initiate self-oscillation, examine key parameters influencing its frequency amplitude. Unlike continuous release from field our dynamically adjusts synchronize behavior. Our design features advantages such as spontaneous periodic lighting, simple structure, efficiency, ease operation. It shows significant promise circuit monitoring devices, optical applications.

Language: Английский

Citations

1

Modeling the dynamic response of a light-driven liquid crystal elastomer fiber/baffle/spring coupled system DOI
Zheng Dai, Fan Yang, Hao Wu

et al.

Journal of Applied Mechanics, Journal Year: 2024, Volume and Issue: 91(12)

Published: Aug. 29, 2024

Abstract A self-oscillating system can harness energy from the external environment to sustain its continuous motion, making it highly suitable for applications in soft robotics, military industry, energy, and other fields. This article introduces a composed of light-responsive liquid crystal elastomer fiber, baffle, spring, capable achieving self-oscillation under stable lighting conditions. Considering established dynamic model elastomers (LCEs), nonlinear is introduced used as basis exploring characteristics. Numerical computations reveal that coupled exhibits two distinct motion states: static states. The behavior sustained through interaction light damping dissipation. Furthermore, detailed investigation conducted on key parameters affecting frequency amplitude self-oscillation. In contrast complexity current systems, this particular features simplicity structure, ease manufacture, strong adaptability. These advantages are expected provide broader design possibilities micro-machines mechanical production processes.

Language: Английский

Citations

0

A Light-Powered Self-Circling Slider on an Elliptical Track with a Liquid Crystal Elastomer Fiber DOI Open Access
Lu Wei, Yanan Chen, Junjie Hu

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(16), P. 2375 - 2375

Published: Aug. 22, 2024

In this paper, we propose an innovative light-powered LCE-slider system that enables continuous self-circling on elliptical track and is comprised of a LCE string, slider, rigid track. By formulating solving dimensionless dynamic equations, explain static states, emphasizing dynamics energy balance. Quantitative analysis reveals the frequency systems independent initial tangential velocity but sensitive to light intensity, contraction coefficients, elastic axis ratio, damping coefficients. Notably, motion outperforms circular in angular frequency, indicating greater efficiency. Reliable under constant suggests applications periodic fields, especially celestial mechanics. Additionally, system’s remarkable adaptability wide range curved trajectories exemplifies its flexibility versatility, while absorption conversion capabilities position it as highly potential candidate for robotics, construction, transportation.

Language: Английский

Citations

0

Self-sustained chaotic movement of electrothermal responsive liquid crystal elastomer pendulum DOI
Peibao Xu,

Xugui Ren,

Yaqi Chen

et al.

Mechanics of Advanced Materials and Structures, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 17

Published: Nov. 11, 2024

Self-sustained movement has the ability to absorb energy from external environment maintain its own movement. In present work, a self-sustained chaotic simple pendulum system featuring an electrothermal responsive liquid crystal elastomers fiber and mass ball is proposed examined. The power-on state achieved in through infusion of metal into this fiber. Which enables shrink, feeding compensate for dissipation resulting damping, thus allowing On basis existing dynamic elastomer model, governing equations are established, behavior under stimulation theoretically explored. Numerical findings suggest that presents three different patterns, namely stationary pattern, oscillatory pattern. Moreover, five parameters elastic coefficient, viscosity gravitational acceleration, shrinkage coefficient strength work can contribute better understanding systems driven by materials offer guidance further exploration applications such as chaos machine, mind-brain analysis.

Language: Английский

Citations

0