Design and experimental performances of a piezoelectric stick-slip actuator for rotary motion

2019 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

无线电电子学;计算机科学;材料科学

Ding, Zhaochen^1 ; Dong, Jingshi^1 ; Yin, Haojie^1 ; Wang, Zhe^1 ; Zhou, Xiaoqin^1 ; Xu, Zhi^1

School of Mechanical and Aerospace Engineering, Jilin University, Changchun

130022, China^1

关键词: Flexible hinges;    Maximum speed;    Output performance;    Output stability;    Parasitic motion;    Pseudo rigid bodies;    Rotary motions;    Working performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/563/4/042068/pdf
DOI  :  10.1088/1757-899X/563/4/042068

来源: IOP

【 摘 要 】

In order to reduce the regression phenomenon of the piezoelectric stick-slip actuator, and improve the output performance, a piezoelectric stick-slip actuator with regular octagonal flexible hinge mechanism is proposed in this paper. The pseudo-rigid body method is used to analyze the regular octagonal flexible hinge mechanism and the flexible driving foot respectively.A prototype is fabricated to test the working performance and the results demonstrate that the minimum step is 0.01μm, the maximum speed is 145251μrad/s, and the maximum load carrying capacity is 500g. The experimental results show that the parasitic motion suppresses the regression of the actuator and improves the output stability.