Non-contact magnetic driving bioinspired Venus flytrap robot based on bistable anti-symmetric CFRP structure

Zhang, Zheng, Chen, Dandi, Wu, Huaping, Bao, Yumei and Chai, Guozhong (2016) Non-contact magnetic driving bioinspired Venus flytrap robot based on bistable anti-symmetric CFRP structure. Composite Structures, 135 17-22. doi:10.1016/j.compstruct.2015.09.015

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Author Zhang, Zheng
Chen, Dandi
Wu, Huaping
Bao, Yumei
Chai, Guozhong
Title Non-contact magnetic driving bioinspired Venus flytrap robot based on bistable anti-symmetric CFRP structure
Journal name Composite Structures   Check publisher's open access policy
ISSN 0263-8223
1879-1085
Publication date 2016-01-01
Year available 2016
Sub-type Article (original research)
DOI 10.1016/j.compstruct.2015.09.015
Open Access Status File (Author Post-print)
Volume 135
Start page 17
End page 22
Total pages 6
Place of publication London, United Kingdom
Publisher Elsevier
Language eng
Subject 2503 Ceramics and Composites
2205 Civil and Structural Engineering
Abstract The Venus flytrap takes advantage of its bistability to generate rapid closure motion for capturing its prey. A bioinspired Venus flytrap robot with bistable artificial leaves is presented in this paper. Non-contact electromagnetic driving method is proposed to actuate the Venus flytrap robot's artificial leaves, which are made of anti-symmetric carbon fiber reinforced prepreg (CFRP) cylindrical shells. Magnetic force is generated by using the electromagnet and applied on the shell's curve edge to unbend the shell, and then the bending process transmits from one edge to the whole surface. The required magnetic force for the snap-through process of the bistable CFRP structure is determined from experimental test and compared with the result of finite element simulation. The test of the snap-through process of the Venus flytrap robot show that the Venus flytrap robot can generate a rapid snapping motion by the electromagnet actuation.
Formatted abstract
The Venus flytrap takes advantage of its bistability to generate rapid closure motion for capturing its prey. A bioinspired Venus flytrap robot with bistable artificial leaves is presented in this paper. Non-contact electromagnetic driving method is proposed to actuate the Venus flytrap robot’s artificial leaves, which are made of anti-symmetric carbon fiber reinforced prepreg (CFRP) cylindrical shells. Magnetic force is generated by using the electromagnet and applied on the shell’s curve edge to unbend the shell, and then the bending process transmits from one edge to the whole surface. The required magnetic force for the snap-through process of the bistable CFRP structure is determined from experimental test and compared with the result of finite element simulation. The test of the snap-through process of the Venus flytrap robot show that the Venus flytrap robot can generate a rapid snapping motion by the electromagnet actuation
Keyword Anti symmetric cylindrical shell
Bioinspired Venus flytrap
Bistable composite structure
Magnetic driving
Non contact
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
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