| 赵俊,孙奕清,曹绍林,唐伟军.移动光照下液晶弹性体固支梁的动态响应分析[J].安徽建筑大学学报,2024,32(): |
| 移动光照下液晶弹性体固支梁的动态响应分析 |
| Dynamic Response of Fixed Supported Liquid Crystal Elastomer Beam under Moving Illumination |
| 投稿时间：2023-10-21 修订日期：2024-01-18 |
| DOI： |
| 中文关键词: 液晶弹性体 移动光照 动态响应 模态叠加法 杜哈梅尔积分 |
| 英文关键词: liquid crystal elastomer moving illumination dynamic response modal superposition method Duhamel integral |
| 基金项目:国家自然科学基金项目-面上项目(12172001) |
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| 中文摘要: |
| 液晶弹性体（LCE）梁在移动光照作用下会产生弯曲动态响应，本文建立LCE固支梁在移动光照下的动态模型，并推导出动态响应的控制方程。在此基础上，通过模态叠加法和Duhamel积分法获得LCE固支梁在移动光照下动态响应的解析解，并利用Matlab软件对模型进行编程进而分析物理参数对LCE固支梁动态响应的影响。结果表明:当移动光照的速度达到一定程度时，固支梁跨中动态响应的振幅最大。此外，通过改变光照强度、LCE的材料收缩系数和阻尼系数等参数，可以对动态响应进行有效调控。研究成果在软机器人、智能控制和能量转换等领域具有一定的潜在应用价值。 |
| 英文摘要: |
| Liquid crystal elastomer (LCE) beams produce a bending dynamic response under the action of moving illumination.The dynamic model of LCE fixed supported beam under moving illumination is established, and the control equation of dynamic response is derived. On this basis, the analytical solution of the dynamic response of LCE fixed supported beam under moving illumination is obtained by modal superposition method and Duhamel integral method, and the dynamic response can be programmed and analyzed by Matlab software. By numerical calculation, the influence of physical parameters on the dynamic response of LCE fixed supported beam is analyzed. The result shows that only when the velocity of the moving illumination reach a certain range, the maximum amplitude of the dynamic response on the mid-span of the fixed supported beam reaches the peak. In addition, the dynamic response can be effectively controlled by changing the light intensity, the shrinkage coefficient and the damping coefficient. The results have certain potential application value in the fields of soft robotics, intelligent control and energy conversion. |
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