Machine-Knitted Seamless Pneumatic Actuators for Soft Robotics: Design, Fabrication, and Characterization

Autor: Hend M. Elmoughni, Ayse Feyza Yilmaz, Kadir Ozlem, Fidan Khalilbayli, Leonardo Cappello, Asli Tuncay Atalay, Gökhan Ince, Ozgur Atalay
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Actuators, Vol 10, Iss 5, p 94 (2021)
Druh dokumentu: article
ISSN: 10050094
2076-0825
DOI: 10.3390/act10050094
Popis: Computerized machine knitting offers an attractive fabrication technology for incorporating wearable assistive devices into garments. In this work, we utilized, for the first time, whole-garment knitting techniques to manufacture a seamless fully knitted pneumatic bending actuator, which represents an advancement to existing cut-and-sew manufacturing techniques. Various machine knitting parameters were investigated to create anisotropic actuator structures, which exhibited a range of bending and extension motions when pressurized with air. The functionality of the actuator was demonstrated through integration into an assistive glove for hand grip action. The achieved curvature range when pressurizing the actuators up to 150 kPa was sufficient to grasp objects down to 3 cm in diameter and up to 125 g in weight. This manufacturing technique is rapid and scalable, paving the way for mass-production of customizable soft robotics wearables.
Databáze: Directory of Open Access Journals