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Phototunable self-oscillating system driven by a self-winding fiber actuator
Zhiming Hu1,2, Yunlong Li1,2, Jiu-An Lv3,4
1Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou, Zhejiang Province, China.
Nature Communications
|May 29, 2021
Summary
Researchers developed a novel phototunable self-oscillating system using a unique fiber actuator. This robust system offers controllable, diverse oscillation modes for advanced robotics and intelligent machines.
Area of Science:
- Materials Science
- Robotics
- Soft Matter Physics
Background:
- Self-oscillating systems are crucial for autonomous machines but existing artificial systems face limitations.
- Current systems exhibit restricted oscillation modes, poor control over mode transitions, and lack loading capability.
Purpose of the Study:
- To create a phototunable self-oscillating system with enhanced control and robustness.
- To overcome limitations of existing artificial self-oscillating systems.
Main Methods:
- Designed and prepared a photoactive self-winding fiber actuator using a twistless strategy inspired by plant tendrils.
- Utilized light as a tunable stimulus to control the system's behavior.
Main Results:
- Achieved a broad range of oscillation modes, including controllable transitions between them.
- Demonstrated continuous operation for over 1,270,000 cycles without significant fatigue, showing high robustness.
- The system exhibits loading capability, unlike previous designs.
Conclusions:
- The developed phototunable self-oscillating system offers superior control, robustness, and versatility.
- This system holds significant potential for autonomous machines, advanced robotics, and biomedical devices leveraging photo-mechanical transduction.
