摘要
本文从功能材料力-电耦合的角度分析了粘结层参数对压电纤维复合材料(macro fiber composites, MFC)机电响应行为的影响。通过有限元模拟计算发现,减少粘结层厚度及增大其介电常数有利于缓解MFC介电失配现象,提高有效电场加载,从而获得高压电性。试验制备了MFC并进行了驱动及传感性能表征,试验结果与模拟仿真一致。减少粘结层厚度和弹性模量,及增大其介电常数,能有效增大MFC尖端位移和输出电压,提高驱动和传感性能。该研究对驱动和传感用MFC的设计提供了指导。
The effect of the bonding layer parameters on the electromechanical response behavior of macro fiber composites(MFC) was analyzed, from the perspective of mechanical and electrical coupling of functional materials. It is found that reducing the thickness and increasing the dielectric constant of the adhesive layer are beneficial to alleviate the dielectric mismatch phenomenon of MFC via the finite element simulation, increasing the effective electric field load and obtain high-voltage electrical performance. Reducing its elastic modulus can improve the deformation ability of MFC. The MFC were fabricated, the actuating and sensing performance were characterized. The experimental results are consistent with the simulation data. Reducing the thickness and elastic modulus of the adhesive layer, increasing its dielectric constant can increase its tip displacement and output voltage of MFC, and improve the actuating and sensing performance. The research provides guidance for the design of MFC for actuating and sensing.
作者
沈杰
宋佳畅
周静
周晶晶
黄瑞
申冰菲
SHEN Jie;SONG Jiachang;ZHOU Jing;ZHOU Jingjing;HUANG Rui;SHEN Bingfei(State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China)
出处
《硅酸盐通报》
CAS
北大核心
2021年第12期4118-4127,共10页
Bulletin of the Chinese Ceramic Society
基金
三亚崖州湾科技城管理局重大科技项目(SKJC-KJ-2019KY02)
武汉理工大学三亚科教园开放基金(003-000420)
装备预研教育部联合基金(614A02022262,614A02033209)。
关键词
压电纤维复合材料
粘结层
有限元分析
驱动
传感
机电响应
力-电转换
macro fiber composite
adhesive layer
finite element analysis
actuating
sensing
electromechanical response
force-electric conversion
