基于电场分布的压电纤维复合材料性能优化
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摘要
将TiO_2引入压电纤维复合材料(MFC)的粘结层以提高其介电常数,调控MFC极化和驱动过程中电场分布,实现了对MFC性能的优化。采用有限元分析的方法探究了粘结层介电常数对MFC电场分布的影响,指导设计了实验方案。采用切割-填充法制备了在粘结层聚合物中引入TiO_2的MFC。铁电性能测试结果表明,MFC剩余极化强度随粘结层中TiO_2质量分数的增加呈现先增大后减小的趋势,在粘结层中TiO_2质量分数为8wt%时达到最大值。MFC驱动性能随TiO_2质量分数变化的趋势与剩余极化强度一致,电场驱动下自由应变在TiO_2质量分数为8wt%时达到峰值,为2. 31με。研究表明,引入TiO_2调节粘结层介电常数可有效改善MFC的性能。
The TiO_2 is added into the bonding layer of piezoelectric fiber composite( MFC) to improve its dielectric constant,regulate the electric field distribution during MFC polarization and driving process,and optimize the MFC performance. The influence of the dielectric constant of the bonding layer on the electric field distribution of MFC were investigated by the finite element analysis method,and the experimental scheme was designed. MFC incorporating TiO_2 into the tie layer polymer was prepared by a cut-fill method. The results of ferroelectric performance test show that the remanent polarization of MFC increases first and then decreases with the increase of TiO_2 mass fraction in the bonding layer,and reaches the maximum when the mass fraction of TiO_2 in the bonding layer is 8 wt%. The driving performance of MFC is similar to the remanentl polarization intensity with the change of TiO_2 mass fraction. The free strain under electric field drive reaches a peak at TiO_2 mass fraction of8 wt%,which is 2. 31 με. Studies have shown that the introduction of TiO_2 to adjust the dielectric constant of the bonding layer can effectively improve the performance of MFC.
The TiO_2 is added into the bonding layer of piezoelectric fiber composite( MFC) to improve its dielectric constant,regulate the electric field distribution during MFC polarization and driving process,and optimize the MFC performance. The influence of the dielectric constant of the bonding layer on the electric field distribution of MFC were investigated by the finite element analysis method,and the experimental scheme was designed. MFC incorporating TiO_2 into the tie layer polymer was prepared by a cut-fill method. The results of ferroelectric performance test show that the remanent polarization of MFC increases first and then decreases with the increase of TiO_2 mass fraction in the bonding layer,and reaches the maximum when the mass fraction of TiO_2 in the bonding layer is 8 wt%. The driving performance of MFC is similar to the remanentl polarization intensity with the change of TiO_2 mass fraction. The free strain under electric field drive reaches a peak at TiO_2 mass fraction of8 wt%,which is 2. 31 με. Studies have shown that the introduction of TiO_2 to adjust the dielectric constant of the bonding layer can effectively improve the performance of MFC.
引文
[1] Bent A A,Hagood N W. Piezoelectric fiber composites with interdigitated electrodes[J]. Journal of Intelligent Material Systems and Structures,1997,8(11):903-919.
[2] Williams R B. Nonlinear mechanical and actuation characterization of piezoceramic fiber composites[D]. Virginia Polytechnic Institute and State University,1999.
[3] Zhang S Q,Li Y X,Schmidt R. Modeling and simulation of macro-fiber composite layered smart structures[J]. Composite Structures,2015,126:89-100.
[4] Kovalovs A. Application of Macro-fiber composite(MFC)as piezoelectric actuator[J]. Journal of Vibroengineering,2009,2(4):263-264.
[5] Bilgen O,Kochersberger K B,Inman D J,et al. Novel,bidirectional,variable-camber airfoil via macro-fiber composite actuators[J]. Journal of Aircraft,2012,47(1):303-314.
[6]盛贤君,王爱武,杨睿.基于LaRC-MFC致动器的振动主动控制[J].压电与声光,2010,32(4):568-570.
[7] Sakamoto R,Tanaka H,Ogi Y. Improvement of deployment repeatability by the vibration produced by macro fiber composite actuator[J].Mechanical Engineering Letters,2016,2:16-00042-16-00042.
[8] Lin X J,Huang S F,Zhou K C,Zhang D. The influence of structural parameters on the actuation performance of piezoelectric fiber composites[J].Materials& Design,2016,107.
[9]谢焰,周静,沈杰,等.纤维层厚和叉指电极间距对MFC电输出性能的影响[J].硅酸盐通报,2017,36(12):4193-4197.
[10]王晓宇,从强,林秀娟,等.压电纤维复合物驱动应变性能的模拟和优化[J].中国有色金属学报,2015,25(11):3113-3118.
[11]刘永刚,沈星,赵东标,等.压电纤维复合材料的静电场分析[J].人工晶体学报,2007,36(3):596-600.
[12]陈宇飞,张旭,孙佳林,等.二氧化钛改性环氧树脂胶黏剂的性能.江苏大学学报(自然科学版),2013,34(3):335-339.
[13]杨青,兰逢涛,何州文,等.纳米Ti O2和水分子对环氧树脂电性能影响的分子模拟研究[J].绝缘材料,2015,48(11):40-43+48.
[14]姚超,高国生,林西平,等.硅烷偶联剂对纳米二氧化钛表面改性的研究[J].无机材料学报,2006,(2):315-321.
[2] Williams R B. Nonlinear mechanical and actuation characterization of piezoceramic fiber composites[D]. Virginia Polytechnic Institute and State University,1999.
[3] Zhang S Q,Li Y X,Schmidt R. Modeling and simulation of macro-fiber composite layered smart structures[J]. Composite Structures,2015,126:89-100.
[4] Kovalovs A. Application of Macro-fiber composite(MFC)as piezoelectric actuator[J]. Journal of Vibroengineering,2009,2(4):263-264.
[5] Bilgen O,Kochersberger K B,Inman D J,et al. Novel,bidirectional,variable-camber airfoil via macro-fiber composite actuators[J]. Journal of Aircraft,2012,47(1):303-314.
[6]盛贤君,王爱武,杨睿.基于LaRC-MFC致动器的振动主动控制[J].压电与声光,2010,32(4):568-570.
[7] Sakamoto R,Tanaka H,Ogi Y. Improvement of deployment repeatability by the vibration produced by macro fiber composite actuator[J].Mechanical Engineering Letters,2016,2:16-00042-16-00042.
[8] Lin X J,Huang S F,Zhou K C,Zhang D. The influence of structural parameters on the actuation performance of piezoelectric fiber composites[J].Materials& Design,2016,107.
[9]谢焰,周静,沈杰,等.纤维层厚和叉指电极间距对MFC电输出性能的影响[J].硅酸盐通报,2017,36(12):4193-4197.
[10]王晓宇,从强,林秀娟,等.压电纤维复合物驱动应变性能的模拟和优化[J].中国有色金属学报,2015,25(11):3113-3118.
[11]刘永刚,沈星,赵东标,等.压电纤维复合材料的静电场分析[J].人工晶体学报,2007,36(3):596-600.
[12]陈宇飞,张旭,孙佳林,等.二氧化钛改性环氧树脂胶黏剂的性能.江苏大学学报(自然科学版),2013,34(3):335-339.
[13]杨青,兰逢涛,何州文,等.纳米Ti O2和水分子对环氧树脂电性能影响的分子模拟研究[J].绝缘材料,2015,48(11):40-43+48.
[14]姚超,高国生,林西平,等.硅烷偶联剂对纳米二氧化钛表面改性的研究[J].无机材料学报,2006,(2):315-321.