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Updated: May 7, 2026
10:32
Fabrication Process of Silicone-based Dielectric Elastomer Actuators
Published on: February 1, 2016
Note: A novel rotary actuator driven by only one piezoelectric actuator
Hu Huang1, Lu Fu, Hongwei Zhao
1College of Mechanical Science and Engineering, Jilin University, Renmin Street 5988, Changchun, Jilin 130025, China.
The Review of Scientific Instruments
|October 5, 2013
Summary
This study introduces a novel piezoelectric rotary actuator utilizing parasitic motion. It achieves high rotation speeds and precise resolution, validating the principle for advanced actuator designs.
Area of Science:
- Mechanical Engineering
- Materials Science
- Robotics
Background:
- Piezoelectric actuators offer high precision but often require complex mechanisms for rotary motion.
- Parasitic motion, a phenomenon where unintended movements are harnessed, has potential for novel actuator designs.
Purpose of the Study:
- To present and validate a new piezo-driven rotary actuator based on the parasitic motion principle.
- To evaluate the performance characteristics, including rotation velocity and resolution, of the proposed actuator.
Main Methods:
- A novel rotary actuator design was developed utilizing a single piezoelectric actuator and the parasitic motion principle.
- Simple sawtooth wave control was employed to drive the piezoelectric actuator.
- Performance metrics such as rotation velocity and minimum resolution were experimentally measured.
Main Results:
- The rotary actuator achieved a rotation velocity of approximately 20,097 μrad/s at 100 V driving voltage and 90 Hz driving frequency.
- Stable rotation was demonstrated with a minimum achievable resolution of 0.7 μrad.
- The experimental results confirmed the feasibility of the parasitic motion principle for rotary actuation.
Conclusions:
- The parasitic motion principle is feasible for developing precision piezoelectric rotary actuators.
- The demonstrated actuator offers a simple yet effective design for high-performance rotary motion.
- This work provides new design concepts for the next generation of precision piezoelectric rotary actuators.
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