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Published in: The International Journal of Advanced Manufacturing Technology 4/2020

15-04-2020 | ORIGINAL ARTICLE

Experimental study of multi-stable morphing structures actuated by pneumatic actuation

Authors: Xiangqi Ni, Chongjie Liao, Yang Li, Zheng Zhang, Min Sun, Hao Chai, Huaping Wu, Shaofei Jiang

Published in: The International Journal of Advanced Manufacturing Technology | Issue 4/2020

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Abstract

In this paper, we proposed a new pneumatic actuation method inspired from a soft robot, which could drive the multi-stable carbon fiber-reinforced polymer (CFRP) structure transition among five stable configurations under air pressure. Multi-stable structure was manufactured by the carbon fiber prepreg laid in asymmetrical and anti-symmetric layup methods and stacked at the joint during the preparation process according to the designed scheme. In experiments, multi-stable structures with two different fibers layups were prepared to study the snap-through behaviors. The snap-through process of two kinds of multi-stable structures was investigated by experiment. The parameters used to characterize efficiency of the pneumatic actuator actuating the multi-stable structures, including air pressure and snap time, were measured. The influence of the pneumatic actuator on the curvature of multi-stable structures was discussed by comparing the shape characteristic of multi-stable structures with or without pneumatic actuation, and it showed pneumatic actuator has little effect to the structure. The results demonstrated that the proposed pneumatic actuation could be used to drive multi-stable morphing structure flexibly. The combination of multi-stable laminates develops the function of multiple point bending and shape retention of pneumatic actuation.

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Metadata
Title
Experimental study of multi-stable morphing structures actuated by pneumatic actuation
Authors
Xiangqi Ni
Chongjie Liao
Yang Li
Zheng Zhang
Min Sun
Hao Chai
Huaping Wu
Shaofei Jiang
Publication date
15-04-2020
Publisher
Springer London
Published in
The International Journal of Advanced Manufacturing Technology / Issue 4/2020
Print ISSN: 0268-3768
Electronic ISSN: 1433-3015
DOI
https://doi.org/10.1007/s00170-020-05301-1

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