Bending vibration model for half coated metal core piezoelectric fiber

BIAN Yi-xiang; QIU Jinhao

doi:10.3788/OPE.20111906.1298

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Bending vibration model for half coated metal core piezoelectric fiber

Article | 更新时间：2020-08-12

- Bending vibration model for half coated metal core piezoelectric fiber
- Optics and Precision Engineering Vol. 19, Issue 6, Pages: 1298-1305(2011)
- 作者机构：
  
  1. 扬州大学机械工程学院,江苏扬州,225127
  2. 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：10.3788/OPE.20111906.1298
  CLC： O738;TM282
- Received：16 August 2010，
  
  Revised：29 September 2010，
  
  Published Online：25 June 2011，
  
  Published：25 June 2011
- 稿件说明：
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边义祥, 裘进浩. 半电极含金属芯压电纤维的弯曲振动模型[J]. 光学精密工程, 2011,19(6): 1298-1305

BIAN Yi-xiang, QIU Jinhao. Bending vibration model for half coated metal core piezoelectric fiber[J]. Editorial Office of Optics and Precision Engineering, 2011,19(6): 1298-1305
边义祥, 裘进浩. 半电极含金属芯压电纤维的弯曲振动模型[J]. 光学精密工程, 2011,19(6): 1298-1305 DOI： 10.3788/OPE.20111906.1298.

BIAN Yi-xiang, QIU Jinhao. Bending vibration model for half coated metal core piezoelectric fiber[J]. Editorial Office of Optics and Precision Engineering, 2011,19(6): 1298-1305 DOI： 10.3788/OPE.20111906.1298.

摘要

建立了悬臂梁结构的半电极含金属芯压电纤维(HMPF)的弯曲振动模型和动态测试模型。基于外加电压时的等效弯矩

推导了悬臂梁结构的HMPF的弯曲振动模型;用第一类压电方程

推导了外加简谐激励电压时

HMPF的表面电位移、电荷和导纳

建立了动态测试模型

通过测量共振频率

、反共振频率

和低频电容

得到HMPF的弹性柔顺系数

、机电耦合系数

、介电常数

和压电常数

。叙述了弯曲振动模型和动态测量模型的建立过程和测试步骤

测试了3根HMPF样品

得到各参数的平均值

为16.85610

-12

-1

为0.179

为2 251

为-103.621 pC/N。测试结果表明所建立的动态测试方法可以快速、准确地测量HMPF的主要参数。

Abstract

A bending vibration model and a dynamic measuring model for a Half Coated Metal Core Piezoelectric Fiber (HMPF) were established. On the basis of the equivalent bending moment from an applying voltage

the bend vibration model of HMPF for a cantilever structure was deduced. According to the first piezoelectric equation

the surface electric displacements

electric charges and the admittances of the HMPF were derived when the resonant exciting voltage was applied. Then

the dynamic measuring model was established to measure the resonant frequencies

anti-resonant frequencies and the low frequency capacitances and to obtain the main parameters

elastic coefficients

electromechanical coupling factors

dielectric constants

and piezoelectric coefficients

. Three kinds of samples for HMPFs were measured

and their average values are elastic coefficient in 16.856 10

-12

-1

electromechanical coupling factor in 0.179

dielectric constant in 2 251 and piezoelectric coefficient in -103.621 pC/N. The theoretical simulation and experimental results show that this method is accurate and available.

关键词

Keywords

references

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