光强、温度和环境湿度对硅纳米棒-光热敏感水凝胶自适应结构分岔行为的影响  

Effects of Light Intensity,Temperature and Ambient Humidity on the Bifurcation Behavior of Adaptive Structure Consists of Photo-Thermal Sensitive Hydrogels and Silicon Nanorods

作　　者：颜慧贤[1,2] 苏恒迪 刘秉扬 严良炯 YAN Huixian;SU Hengdi;LIU Bingyang;YAN Liangjiong(School of Mechanical and Electrical Engineering,Sanming University,Sanming 365004,China;Fujian Provincial Key Laboratory of Equipment Intelligence Control,Sanming 365004,China;College of Information and Management Science,Henan Agricultural University,Zhengzhou 450002,China;Fujian Provincial Key Laboratory of Photonics Technology,Fujian Normal University,Fuzhou 350007,China)

机构地区：[1]三明学院机电工程学院,福建三明365004 [2]装备智能控制福建省高校重点实验室,福建三明365004 [3]河南农业大学信息与管理科学学院,河南郑州450002 [4]福建师范大学福建省光子技术重点实验室,福建福州350007

出　　处：《三明学院学报》2024年第6期91-100,共10页Journal of Sanming University

基　　金：福建省自然科学基金项目(2021J011130);三明学院自然科学基金项目(KD22010P)。

摘　　要：为分析环境因素对自适应结构分岔行为的影响规律,采用光热敏感水凝胶有限变形理论和最小势能原理构建分岔行为分析模型,探讨系统稳定性与环境光强、温度以及相对湿度的关系,计算不同条件下的分岔临界参数条件,给出不同参数条件下硅纳米棒的平衡倾斜角。研究结果表明:当环境湿度低于临界湿度时,水凝胶释放水分厚度减小,硅纳米棒发生倾斜;水凝胶初始溶胀率越大、光强和温度越高,分岔临界湿度数值越高;环境湿度低于临界湿度后,光强和温度越高时,硅纳米棒平衡倾斜角越大。In order to analyze the influence of environmental factors on the bifurcation behavior of adaptive structures,a bifurcation behavior analysis model was established based on the finite deformation theory of photo-thermal sensitive hydrogel and the principle of minimum potential energy,and the relationship between system stability and ambient light intensity,temperature and relative humidity was discussed.The critical parameters of bifurcation under different conditions are calculated,and the equilibrium tilt angles of silicon nanorods under different parameters are given.It was found that when the ambient humidity is lower than the critical value,the thickness of water released by the hydrogel decreases,and the silicon nanorods tilt.The higher the initial swelling ratio of hydrogel,light intensity and temperature,the higher the critical humidity value of bifurcation.When the ambient humidity is lower than the critical humidity,the higher the light intensity and temperature,the larger the equilibrium tilt angle of the silicon nanorods.

关 键 词：光热敏感水凝胶 自适应结构 分岔行为 失稳 临界湿度 

分 类 号：TQ427.26[化学工程]