Design and experimental performances of a piezoelectric stick-slip actuator for rotary motion
Abstract
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.
- Publication:
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Materials Science and Engineering Conference Series
- Pub Date:
- July 2019
- DOI:
- 10.1088/1757-899X/563/4/042068
- Bibcode:
- 2019MS&E..563d2068D