JZUS - Journal of Zhejiang University SCIENCE

Journal of Zhejiang University SCIENCE A

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Multi-scale analysis of the self-vibration of a liquid crystal elastomer fiber-spring system exposed to constant-gradient light

Author(s): Haiyang WU, Jiangfeng LOU, Yuntong DAI, Biao ZHANG, Kai LI
Affiliation(s): School of Civil Engineering, Anhui Jianzhu University, Hefei 230601, China
Corresponding email(s): kli@ahjzu.edu.cn
Key Words: Self-vibration; Constant-gradient light; Liquid crystal elastomer; Multi-scale method

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Haiyang WU, Jiangfeng LOU, Yuntong DAI, Biao ZHANG, Kai LI. Multi-scale analysis of the self-vibration of a liquid crystal elastomer fiber-spring system exposed to constant-gradient light[J]. Journal of Zhejiang University Science A,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.A2400194

@article{title="Multi-scale analysis of the self-vibration of a liquid crystal elastomer fiber-spring system exposed to constant-gradient light",
author="Haiyang WU, Jiangfeng LOU, Yuntong DAI, Biao ZHANG, Kai LI",
journal="Journal of Zhejiang University Science A",
year="in press",
publisher="Zhejiang University Press & Springer",
doi="https://doi.org/10.1631/jzus.A2400194"
}

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%T Multi-scale analysis of the self-vibration of a liquid crystal elastomer fiber-spring system exposed to constant-gradient light
%A Haiyang WU
%A Jiangfeng LOU
%A Yuntong DAI
%A Biao ZHANG
%A Kai LI
%J Journal of Zhejiang University SCIENCE A
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%I Zhejiang University Press & Springer
doi="https://doi.org/10.1631/jzus.A2400194"

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T1 - Multi-scale analysis of the self-vibration of a liquid crystal elastomer fiber-spring system exposed to constant-gradient light
A1 - Haiyang WU
A1 - Jiangfeng LOU
A1 - Yuntong DAI
A1 - Biao ZHANG
A1 - Kai LI
J0 - Journal of Zhejiang University Science A
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%@ 1673-565X
Y1 - in press
PB - Zhejiang University Press & Springer
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doi="https://doi.org/10.1631/jzus.A2400194"

Abstract
Chinese Summary
Academic Network
Reviewer Comment

Abstract: Self-vibrating systems comprised of active materials have great potential for application in the fields of energy harvesting, actuation, bionic instrumentation, and autonomous robotics. However, it is challenging to obtain analytical solutions describing these systems, which hinders analysis and design. In this work, we propose a self-vibrating liquid crystal elastomer (LCE) fiber-spring system exposed to spatially-constant gradient light, and determine analytical solutions for its amplitude and period. First, using a dynamic model of LCE, we obtain the equations governing the self-vibration. Then, we analyze two different motion states and elucidate the mechanism of self-vibration. Subsequently, we derive analytical solutions for the amplitude and frequency using the multi-scale method, and compare the solutions with numerical results. The analytical outcomes are shown to be consistent with the numerical calculations, while taking far less computational time. Our findings reveal the utility of the multi-scale method in describing self-vibration, which may contribute to more efficient and accurate analyses of self-vibrating systems.

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