菱形微位移压电作动器的输入输出线性建模

张春林; 张希农; 陈杰; 张帅

doi:10.7652/xjtuxb201405018

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菱形微位移压电作动器的输入输出线性建模

更新时间：2025-07-09

- 菱形微位移压电作动器的输入输出线性建模
- Linear Modeling for Input-Output Relations of a Rhombic Micro-Displacement Piezoelectric Actuator
- 西安交通大学学报 2014年48卷第5期页码：102-106
- 作者机构：
  
  西安交通大学机械结构强度与振动国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
  
  : 2013-11-05。作者简介: 张春林(1988—),男,博士生;张希农(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(11102147)
- DOI：10.7652/xjtuxb201405018
  中图分类号： TP183
- 网络首发：2014-05-10，
  
  纸质出版：2014
- 稿件说明：
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张春林, 张希农, 陈杰, 等. 菱形微位移压电作动器的输入输出线性建模[J]. 西安交通大学学报, 2014,48(5):102-106.

Linear Modeling for Input-Output Relations of a Rhombic Micro-Displacement Piezoelectric Actuator[J]. 2014, 48(5): 102-106.
张春林, 张希农, 陈杰, 等. 菱形微位移压电作动器的输入输出线性建模[J]. 西安交通大学学报, 2014,48(5):102-106. DOI： 10.7652/xjtuxb201405018.

Linear Modeling for Input-Output Relations of a Rhombic Micro-Displacement Piezoelectric Actuator[J]. 2014, 48(5): 102-106. DOI： 10.7652/xjtuxb201405018.

摘要

针对某定位装置的位移输出问题

研究了一种新型菱形微位移压电作动器

该压电作动器包括压电陶瓷、菱形微位移放大机构以及柔性铰链部分。对菱形微位移放大机构的放大系数进行了分析

发现该放大机构具有把压电堆的原始位移输出从30 μm放大到100 μm的能力

放大倍数与菱形环自身夹角θ有关

并且在压电堆输出范围内为比例放大

这些结果可以为更大放大系数的菱形环设计提供依据。建立了该菱形微位移压电作动器输入输出关系的理论线性模型

并将线性模型的模拟结果与实验结果进行了对比

证明该压电作动器线性模型具有较好的精度

能比较准确地反映微位移压电作动器的输入输出关系。

Abstract

A rhombic micro-displacement piezoelectric actuator(RMPA)is proposed to deal with the displacement output of a positioning device. The RMPA consists of three parts

i.e.

a Pb based lanthanum doped zirconate titanate(PZT)actuator

a flexible hinge

and a rhombic amplification mechanism. The geometric amplification relations of amplification mechanism are analyzed. The mechanism can amplify the displacement output from 30 μm to 100 μm

and the magnification coefficient is proportionally magnified in a rated range and is related to the rhombic ring angle θ

which can provide a basis for design of rhombic amplification mechanism with greater magnification coefficient. A linear model of RMPA input and output relation is constructed

and the comparison between the linear model and experiments shows that the theoretical linear model has better expression for RMPA and higher accuracy.

关键词

Keywords

references

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