A Fuzzy Logic Control System for a Robotic Hand Driven by Shape Memory Alloy Wires

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  •   André Silva

  •   Samuel de Oliveira

  •   Andreas Ries

  •   Simplício A. Silva

  •   Cícero Souto

Abstract

This paper presents a robotic hand using wires with shape memory (NiTi) as non-conventional actuators. The mechanical structure of the robot hand was first designed by means of a CAD computer program and afterwards 3D printed using ABS polymer. The robotic hand was designed according to the physiological characteristics of the human hand, with particular attention to the angles formed by the phalanges of the fingers. A mechanical system accommodates the thin NiTi wires compactly, thus forming an artificial muscle. A fuzzy logic based control system allows an accurate positioning of each phalanx. The contribution of the present work to science lies in the practical implementation of known techniques and materials.


Keywords: Shape memory alloy;, NiTi; Fuzzy logic; Artificial hand

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How to Cite
[1]
Silva, A., de Oliveira, S., Ries, A., Silva, S. and Souto, C. 2019. A Fuzzy Logic Control System for a Robotic Hand Driven by Shape Memory Alloy Wires. European Journal of Engineering Research and Science. 4, 10 (Oct. 2019), 173-178. DOI:https://doi.org/10.24018/ejers.2019.4.10.1599.