Piezoelectric inertial rotary actuator based on magnetorheological fluid control

Jian-ming WEN; Hui-lu BAO; De-zhu SHEN; Ji-jie MA; Ke-quan WEN; Jian-ping LI

doi:10.3788/OPE.20192710.2192

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Piezoelectric inertial rotary actuator based on magnetorheological fluid control

Micro/ Nano Technology and Fine Mechanics | 更新时间：2020-08-13

- Piezoelectric inertial rotary actuator based on magnetorheological fluid control
- Optics and Precision Engineering Vol. 27, Issue 10, Pages: 2192-2198(2019)
- 作者机构：
  
  浙江师范大学工学院精密机械与智能结构研究所，浙江金华 321004
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20192710.2192
  CLC： TN384
- Received：11 March 2019，
  
  Accepted：29 April 2019，
  
  Published：25 October 2019
- 稿件说明：
移动端阅览
Jian-ming WEN, Hui-lu BAO, De-zhu SHEN, et al. Piezoelectric inertial rotary actuator based on magnetorheological fluid control[J]. Optics and precision engineering, 2019, 27(10): 2192-2198.
DOI：

Jian-ming WEN, Hui-lu BAO, De-zhu SHEN, et al. Piezoelectric inertial rotary actuator based on magnetorheological fluid control[J]. Optics and precision engineering, 2019, 27(10): 2192-2198. DOI： 10.3788/OPE.20192710.2192.

摘要

为改善惯性压电驱动器的输出性能，提高驱动器的稳定性，本文提出了一种利用压电惯性驱动与磁流变液控制共同作用，将固体-固体摩擦转换为固体-液体/固体-类固体摩擦形成定向运动的新型磁流变液控制式惯性压电旋转驱动器。分析了压电旋转驱动器的工作机理，设计制作了试验样机，搭建了试验系统并与机械控制式压电惯性驱动器进行了回退率、线性度、重复性对比试验测试。结果显示：在1 Hz，15 V方波信号激励下，驱动器平均角位移为0.46 mrad；磁流变液控制式驱动器回退率为5.6%，机械控制式驱动器回退率为72.2%；磁流变液控制式十步位移线性度决定系数为0.998，残差平方和为15.359；机械控制式决定系数为0.985，残差平方和为20.872；磁流变液控制式和机械控制式重复标准差分别为0.136，0.475。试验结果表明，磁流变液控制式惯性压电旋转驱动器回退性能、线性度、重复性均优于机械控制式压电驱动器。

Abstract

To improve the output performance and stability of an inertial piezoelectric actuator

a novel inertial piezoelectric rotary actuator was proposed by combining piezoelectric inertial actuation and magnetorheological control technology to convert solid-solid friction into solid-liquid/solid-like-solid friction. The working principle of a piezoelectric rotary actuator was analyzed and two types of actuators are designed and fabricated. An experimental system was built to evaluate and compare the output performance of the actuators in terms of drawback rate

linearity

and repeatability. The results show that the average angular displacement of a magnetorheological controlled inertial piezoelectric rotary actuator is 0.46 mrad under an exciting voltage of 1 Hz

15 V. Compared to a mechanical controlled piezoelectric actuator

the magnetorheological controlled inertial piezoelectric rotary actuator reduced the drawback rate from 72.2% to 5.6%. In addition

the coefficient of determination

linearity residual sum of squares

and repeatability standard deviation are 0.9981

15.359

and 0.136 for the actuator using a novel friction mechanism

respectively

and 0.9856

20.872

and 0.475 for the actuator using mechanical friction

respectively. In conclusion

the drawback rate

linearity of ten-step displacement

and repeatability for the actuator using a novel magnetorheological fluid control mechanism are superior to that using mechanical friction.

关键词

Keywords

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