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