Note: Lever-type bidirectional stick-slip piezoelectric actuator with flexible hinge

This paper presents a lever-type stick-slip piezoelectric actuator based on the lever amplification principle. The proposed actuator can achieve large strokes, high velocity, and bidirectional actuation with a single piezoelectric stack. The finite element simulation of the lever-type flexible hinge...

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Bibliographic Details
Published in:Review of scientific instruments 2018-08, Vol.89 (8), p.086101-086101
Main Authors: Li, Yikang, Li, Hengyu, Cheng, Tinghai, Lu, Xiaohui, Zhao, Hongwei, Chen, Pengfei
Format: Article
Language:English
Subjects:
Actuation
Finite element method
Piezoelectricity
Scientific apparatus & instruments
Slip
Symmetry
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Summary:This paper presents a lever-type stick-slip piezoelectric actuator based on the lever amplification principle. The proposed actuator can achieve large strokes, high velocity, and bidirectional actuation with a single piezoelectric stack. The finite element simulation of the lever-type flexible hinge is performed, and the designed prototype is tested. When the voltage is 100 Vp-p, the maximum forward velocity is 7.69 mm/s under the symmetry of 20%. The maximum reverse velocity is 7.12 mm/s under the symmetry of 80%. The maximum forward and reverse displacement deviation within 10 cycles is 0.88 μm, and the maximum load can reach 105 g.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.5038640