功能梯度压电驱动器的结构设计、制备与功能验证

裘进浩; 姜皓; 季宏丽; 朱孔军; 李勇君

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功能梯度压电驱动器的结构设计、制备与功能验证

微纳技术与精密机械 | 更新时间：2020-08-12

- 功能梯度压电驱动器的结构设计、制备与功能验证
- Design, fabrication and performance evaluation of functionally gradient piezoelectric actuator
- 光学精密工程 2009年17卷第1期页码：118-125
- 作者机构：
  
  南京航空航天大学, 江苏南京 210016
- 作者简介：
- 基金信息：
  
  江苏省自然科学基金资助项目(No.BK2007200)()
- DOI：
  中图分类号： TN384
- 收稿日期：2008-04-22，
  
  修回日期：2008-11-18，
  
  网络出版日期：2009-01-25，
  
  纸质出版日期：2009-01-25
- 稿件说明：
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裘进浩, 姜皓, 季宏丽, 朱孔军, 李勇君. 功能梯度压电驱动器的结构设计、制备与功能验证[J]. 光学精密工程, 2009,17(1): 118-125

QIU Jin-hao, JIANG Hao, JI Hong-li, ZHU Kong-jun, LI Yong-jun. Design, fabrication and performance evaluation of functionally gradient piezoelectric actuator[J]. Editorial Office of Optics and Precision Engineering, 2009,17(1): 118-125
裘进浩, 姜皓, 季宏丽, 朱孔军, 李勇君. 功能梯度压电驱动器的结构设计、制备与功能验证[J]. 光学精密工程, 2009,17(1): 118-125 DOI：

QIU Jin-hao, JIANG Hao, JI Hong-li, ZHU Kong-jun, LI Yong-jun. Design, fabrication and performance evaluation of functionally gradient piezoelectric actuator[J]. Editorial Office of Optics and Precision Engineering, 2009,17(1): 118-125 DOI：

摘要

根据作者早期研究中提出的一种新型功能梯度驱动器

设计并制备了该驱动器

建立了理论模型

并对驱动器的性能进行了测试。这种新型功能梯度驱动器由4种基于Pb(Ni

1/3

2/3

-PbZrO

-PbTiO

系列的材料复合而成

且4层材料的压电常数和介电常数在厚度方向上的梯度变化相反

这种梯度结构能使驱动器结构内部的应力分布优于传统弯曲驱动器。为了对驱动器进行优化设计

利用经典复合材料力学和压电方程建立了功能梯度压电驱动器的理论模型

并计算了不同厚度配比的驱动器受电压和自由端集中力单独作用时的准静态变形和应力分布

通过分析驱动器的内部应力

确定了各层最优厚度配比为1∶1∶1∶1。根据优化结果成功制备了功能梯度压电驱动器

并测量了驱动器自由端输出位移与输出力的关系。测量结果表明

功能梯度压电弯曲驱动器的输出位移和输出力呈线性关系

并且频率越低

输出位移和力就越大。

Abstract

On the basis of a new type of functionally gradient (FG) piezoelectric actuator proposed by the authors in their former study

the new actuator is designed

fabricated

modeled and experimentally studied. The material compositions are selected from Pb(Ni

1/3

2/3

-PbZrO

-PbTiO

family and they are used as the four layers in the new FG piezoelectric actuator.The piezoelectric constants and dielectric constants of the materials are gradated oppositely in the thickness direction

because this special structure of the FG piezoelectric actuator has an advantage over the traditional actuators in internal stress distribution. To optimize the structure of the FG piezoelectric actuator

an electromechanic model is derived from Classical Lamination Theory (CLT) and piezoelectric equation

and the static distortion and stress distribution of the actuator with different thickness ratios are computed when the voltage or concentrated force effects on it independently.The optimum thickness ratio is 1∶1∶1∶1

which is determined by optimizing the internal stress distribution.According to the optimizing result

the FG piezoelectric actuator is fabricated successfully

also the relation between the output displacement and output force at the free end of the actuator is measured. The experimental results indicate that there is a linear relation between the output displacement and output force of the actuator

moreover

the lower vibration frequency is

the greater output displacement and output force are.

关键词

Keywords

references

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