Characterization of actuator of half coated metal piezoelectric fiber

BIAN Yi-xiang; QIU Jin-hao; WANG Xin-wei; JI Hong-li; ZHU Kong-jun

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Characterization of actuator of half coated metal piezoelectric fiber

Article | 更新时间：2020-08-12

- Characterization of actuator of half coated metal piezoelectric fiber
- Optics and Precision Engineering Vol. 17, Issue 1, Pages: 109-117(2009)
- 作者机构：
  
  南京航空航天大学智能材料与结构研究所,江苏南京 210016
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN384;TM282
- Received：28 April 2008，
  
  Revised：06 June 2008，
  
  Published Online：25 January 2009，
  
  Published：25 January 2009
- 稿件说明：
移动端阅览
边义祥, 裘进浩, 王鑫伟, 季宏丽, 朱孔军. 半电极含金属芯压电纤维的驱动性能[J]. 光学精密工程, 2009,17(1): 109-117

BIAN Yi-xiang, QIU Jin-hao, WANG Xin-wei, JI Hong-li, ZHU Kong-jun. Characterization of actuator of half coated metal piezoelectric fiber[J]. Editorial Office of Optics and Precision Engineering, 2009,17(1): 109-117
边义祥, 裘进浩, 王鑫伟, 季宏丽, 朱孔军. 半电极含金属芯压电纤维的驱动性能[J]. 光学精密工程, 2009,17(1): 109-117 DOI：

BIAN Yi-xiang, QIU Jin-hao, WANG Xin-wei, JI Hong-li, ZHU Kong-jun. Characterization of actuator of half coated metal piezoelectric fiber[J]. Editorial Office of Optics and Precision Engineering, 2009,17(1): 109-117 DOI：

摘要

建立了悬臂梁结构半电极含金属芯压电纤维新型压电弯曲驱动器的理论模型。根据第一类压电方程

推导出自由端位移、夹持力和弯曲共振频率的解析表达式

分析了金属芯性能和半径对这3个参数的影响

并把理论计算结果和有限元分析结果进行了比较。实验结果表明

悬臂梁结构半电极含金属芯压电纤维弯曲驱动器的自由端位移可达589 m

夹持力可达427 N

一阶弯曲共振频率为28 Hz

有限元分析结果和理论值基本吻合

说明这种驱动器有较大的端部位移、较小的夹持力和较低的弯曲共振频率。

Abstract

The mechanical mode of an Half coated Metal core Piezoelectric Fiber (HMPF) actuator is established. According to the constitutive piezoelectric equations

the analytical expressions of the tip deflection

blocking force and the natural frequencies are derived. The effect of the metal core on those properties of HMPF actuator is investigated based on the numerical results of the equations and FEM. The experimental results indicate that the maximum tip deflection of cantilevered HMPF

maximum blocking force and the first resonance frequency are 589 m

427 N and 28 Hz

respectively

FEM results are coincident with theoretical values on the whole. The results show that the actuator can give a big deflection

a small block force

and a low resonance frequency.

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references

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