A 21-DOF Humanoid Dexterous Hand with Hybrid SMA-Motor Actuation: CYJ Hand-0

Fuente: arXiv
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Autori principali: Chai, Jin, Yao, Xiang, Hou, Mengfan, Li, Yanghong, Dong, Erbao
Natura: Preprint
Pubblicazione: 2025
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author Chai, Jin
Yao, Xiang
Hou, Mengfan
Li, Yanghong
Dong, Erbao
author_facet Chai, Jin
Yao, Xiang
Hou, Mengfan
Li, Yanghong
Dong, Erbao
contents CYJ Hand-0 is a 21-DOF humanoid dexterous hand featuring a hybrid tendon-driven actuation system that combines shape memory alloys (SMAs) and DC motors. The hand employs high-strength fishing line as artificial tendons and uses a fully 3D-printed AlSi10Mg metal frame designed to replicate the skeletal and tendon-muscle structure of the human hand. A linear motor-driven module controls finger flexion, while an SMA-based module enables finger extension and lateral abduction. These modules are integrated into a compact hybrid actuation unit mounted on a custom rear support structure. Mechanical and kinematic experiments, conducted under an Arduino Mega 2560-based control system, validate the effectiveness of the design and demonstrate its biomimetic dexterity.
format Preprint
id arxiv_https___arxiv_org_abs_2507_14538
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A 21-DOF Humanoid Dexterous Hand with Hybrid SMA-Motor Actuation: CYJ Hand-0
Chai, Jin
Yao, Xiang
Hou, Mengfan
Li, Yanghong
Dong, Erbao
Robotics
CYJ Hand-0 is a 21-DOF humanoid dexterous hand featuring a hybrid tendon-driven actuation system that combines shape memory alloys (SMAs) and DC motors. The hand employs high-strength fishing line as artificial tendons and uses a fully 3D-printed AlSi10Mg metal frame designed to replicate the skeletal and tendon-muscle structure of the human hand. A linear motor-driven module controls finger flexion, while an SMA-based module enables finger extension and lateral abduction. These modules are integrated into a compact hybrid actuation unit mounted on a custom rear support structure. Mechanical and kinematic experiments, conducted under an Arduino Mega 2560-based control system, validate the effectiveness of the design and demonstrate its biomimetic dexterity.
title A 21-DOF Humanoid Dexterous Hand with Hybrid SMA-Motor Actuation: CYJ Hand-0
topic Robotics
url https://arxiv.org/abs/2507.14538