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Updated: Jul 13, 2025

Fabrication of Soft Pneumatic Network Actuators with Oblique Chambers
Published on: August 17, 2018
Largely deformable torsional soft morphing actuator created by twisted shape memory alloy wire and its application to
Su-Yeon Lee1, Gil-Yong Lee2,3
1Department of Aeronautics, Mechanical and Electronic Convergence Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk, 39177, Republic of Korea.
Abstract:
We present a new type of torsional soft morphing actuator designed and fabricated by twisted shape memory alloy (SMA) wires embedded in polydimethylsiloxane matrix. The design and fabrication process of the proposed soft morphing actuator are presented with investigations of its working mechanism. Actuation performance was evaluated with respect to the temporal response, the maximum torsional deformation under an applied electric current, and various design parameters including the twist direction, wire diameter, helical pitch of the SMA wire, and the actuator's thickness and length. We demonstrate potential applications of the proposed soft morphing actuator as a soft morphing wing and airfoil. The proposed actuator will aid in the development of soft actuators, soft robotics, and other relevant scientific and engineering applications.
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