压电双晶片的能量传输特性分析

叶会英; 浦昭邦

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压电双晶片的能量传输特性分析

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- 压电双晶片的能量传输特性分析
- Analysis of the capacity of energy transmission for piezoelectric bimorph
- 光学精密工程 2000年8卷第4期页码：345-350
- 作者机构：
  
  1. 郑州大学电子工程系,河南郑州,450052
  2. 哈尔滨工业大学计电学院自动化测试与控制系,黑龙江哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： TH145.1+1
- 收稿日期：1999-10-28，
  
  修回日期：2000-05-29，
  
  网络出版日期：2000-08-15，
  
  纸质出版日期：2000-08-15
- 稿件说明：
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叶会英, 浦昭邦. 压电双晶片的能量传输特性分析[J]. 光学精密工程, 2000,(4): 345-350

YE Hui-ying, PU Zhao-bang . Analysis of the capacity of energy transmission for piezoelectric bimorph[J]. Editorial Office of Optics and Precision Engineering, 2000,(4): 345-350
叶会英, 浦昭邦. 压电双晶片的能量传输特性分析[J]. 光学精密工程, 2000,(4): 345-350 DOI：

YE Hui-ying, PU Zhao-bang . Analysis of the capacity of energy transmission for piezoelectric bimorph[J]. Editorial Office of Optics and Precision Engineering, 2000,(4): 345-350 DOI：

摘要

基于压电双晶片的准静态本构方程

详细地分析了准静态情况下悬臂梁式双晶片执行器在常见的三种不同载荷(力、力矩、压力)情况下的机电转换特性

即有效机电耦合系数、最大能量传输系统、最大输出机械能量时效率.分析结果表明:这些特性主要由压电双晶片材料的横向机电耦合系数k31决定;三种载荷中

以力矩形式输出机械能时压电双晶片执行器的效率最高

以力的形式输出时稍低

以压力形式(如用于推动气体或液体)输出时效率最低.这些结论对于设计压电双晶片执行器的结构具有指导意义.

Abstract

The electromechanical conversion

consisted of the capacity of energy transmission

the effectiveness and the maximum mechanical output energy of piezoelectric bimorphs under three constant loading conditions(force

moment

pressure)are quantitatively analyzed based on its cantilever constitutive equations. As a result

the electromechanical conversion mostly depend on the transverse electromechanical coupling factor k 31

 and they are largest in the case of a moment

smaller in the case of a force

and smallest in the case of a pressure. These conclusions give directions for designing the structure of piezoelectric bimorphs actuators.

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Keywords

references

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