Effect of different clamping lengths of cantilever bimorph on its dynamic characteristics

CHENG Guang-ming; LI Xin-hui; ZHANG Hai-bin; ZENG Ping; WEN Jian-ming

doi:10.3788/OPE.20142205.1296

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Effect of different clamping lengths of cantilever bimorph on its dynamic characteristics

更新时间：2020-08-13

- Effect of different clamping lengths of cantilever bimorph on its dynamic characteristics
- Optics and Precision Engineering Vol. 22, Issue 5, Pages: 1296-1303(2014)
- 作者机构：
  
  1. 浙江师范大学精密机械研究所,浙江金华,321004
  2. 兰州交通大学机电工程学院,甘肃兰州,730070
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20142205.1296
  CLC： TN384
- Received：01 December 2013，
  
  Revised：05 February 2014，
  
  Published：25 May 2014
- 稿件说明：
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程光明, 李新辉, 张海滨等. 悬臂式压电双晶片振子夹持长度变化对其动态特性的影响[J]. 光学精密工程, 2014,22(5): 1296-1303

CHENG Guang-ming, LI Xin-hui, ZHANG Hai-bin etc. Effect of different clamping lengths of cantilever bimorph on its dynamic characteristics[J]. Editorial Office of Optics and Precision Engineering, 2014,22(5): 1296-1303
程光明, 李新辉, 张海滨等. 悬臂式压电双晶片振子夹持长度变化对其动态特性的影响[J]. 光学精密工程, 2014,22(5): 1296-1303 DOI： 10.3788/OPE.20142205.1296.

CHENG Guang-ming, LI Xin-hui, ZHANG Hai-bin etc. Effect of different clamping lengths of cantilever bimorph on its dynamic characteristics[J]. Editorial Office of Optics and Precision Engineering, 2014,22(5): 1296-1303 DOI： 10.3788/OPE.20142205.1296.

摘要

以惯性压电驱动器的关键部件——悬臂式压电双晶片振子为研究对象，探讨了悬臂式压电双晶片振子的夹持长度变化对其动态特性的影响规律。首先，建立了悬臂式压电双晶片振子静态参数方程和动力学模型。然后，应用matlab软件仿真分析了夹持长度变化对悬臂式压电双晶片振子的端部位移幅值和惯性加速度幅值的影响。最后，分别测试了悬臂式压电双晶片振子在不同夹持长度下的端部位移幅值以及惯性加速度幅值。结果显示：驱动电压为10V，频率为11Hz，悬臂式压电双晶片振子的夹持长度在9~20mm内变化时，其端部位移幅值最大为66.2μm，产生的惯性加速度幅值最大为10.2ms

-2

。仿真和试验结果表明：激励电场相同时，随着悬臂式压电双晶片振子的夹持长度增大，其端部位移幅值会变小，而其产生的惯性加速度会变大。

Abstract

This work focuses on the effect of clamping length on the dynamic characteristics of a cantilever piezoelectric bimorph vibrator. First

the static parameter equation and the dynamic model of the cantilever bimorph vibrator was established. Then

the effects of the changed clamping lengths on the tip displacement amplitude and the inertia acceleration magnitude of the cantilever bimorph vibrator were analyzed with MATLAB software. Finally

the tip displacement amplitude and the inertia acceleration amplitude of the cantilever bimorph vibrator were measured separately. Results show that the maximal amplitude of tip displacement is 66.2 μm and the generated maximal inertial acceleration is 10.2 ms

-2

at a driving voltage of 10 V

a frequency of 11 Hz

and the clamping length of cantilever bimorph vibrator between 9 and 20 mm. Simulation and experimental results indicate that with the same excitation field

the longer the clamping length

the smaller the amplitude of displacement and the larger the inertial acceleration produced by the piezoelectric bimorph vibrator.

关键词

Keywords

references

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