Design of a SMA-based soft composite structure for wearable rehabilitation gloves.
Design of a SMA-based soft composite structure for wearable rehabilitation gloves.
复制标题
DOI：
10.3389/fnbot.2023.1047493
复制
发表时间：
2023
影响因子：
3.1
通讯作者：
Yu, Hongliu
中科院分区：
文献类型：
--
作者：
Xie, Qiaolian;Meng, Qiaoling;Yu, Wenwei;Wu, Zhiyu;Xu, Rongna;Zeng, Qingxin;Zhou, Zhongchao;Yang, Tianyi;Yu, Hongliu
基于形状记忆合金（SMA）的智能软复合结构与外骨骼技术的结合具有重量轻、节能、人外骨骼交互性强等优点。然而，目前尚无基于SMA的软复合结构（SSCS）在手部外骨骼中应用的相关研究。主要难点在于SSCS的定向力学性能需要符合手指的运动，并且SSCS能够向相关关节提供足够的输出扭矩和位移。本文旨在研究SSCS在可穿戴康复手套中的应用，并探讨其仿生驱动机制。本文基于不同驱动模式下的手指受力分析，提出了一种由 SSCS 驱动的软可穿戴手套（Glove-SSCS），用于手部康复。 Glove-SSCS可支持五指屈伸，重量仅为120克，采用模块化设计。各驱动模块均采用软质复合结构。该结构集驱动、传感和执行于一体，包括主动层（SMA弹簧）、被动层（锰钢板）、传感层（弯曲传感器）和连接层。为了获得高性能的SMA执行器，对SMA材料的性能进行了温度和电压、最短长度温度、预拉伸长度和负载等方面的测试。并从力和运动角度建立了Glove-SSCS的人体与外骨骼耦合模型并进行了分析。结果表明，Glove-SSCS可以实现手指屈伸的双向运动，运动范围为90~110°和30~40°，周期为13~19 s和11~13 s。 Glove-SSCS使用过程中，手套温度为25～67℃，手部表面温度为32～36℃。 Glove-SSCS的温度可以保持在SMA操作的最低温度，对人体没有太大影响。
The combination of smart soft composite structure based shape memory alloy (SMA) and exoskeleton technology has the advantages of light weight, energy saving, and great human-exoskeleton interaction. However, there are no relevant studies on the application of SMA-based soft composite structure (SSCS) in hand exoskeletons. The main difficulty is that directional mechanical properties of SSCS need to comply with fingers movement, and SSCS can deliver enough output torque and displacement to the relevant joints. This paper aims to study the application of SSCS for wearable rehabilitation gloves and explore its bionic driving mechanism. This paper proposes a soft wearable glove (Glove-SSCS) for hand rehabilitation actuated by the SSCS, based on finger force analysis under different drive modes. The Glove-SSCS can support five-finger flexion and extension, weighs only 120 g, and adopts modular design. Each drive module adopts a soft composite structure. And the structure integrates actuation, sensing and execution, including an active layer (SMA spring), a passive layer (manganese steel sheet), a sensing layer (bending sensor) and connection layers. To obtain a high-performance SMA actuators, the performance of SMA materials was tested in terms of temperature and voltage, temperature at the shortest length, pre-tensile length and load. And the human-exoskeleton coupling model of Glove-SSCS is established and analyzed from force and motion. The results show that the Glove-SSCS can realize bidirectional movements of fingers flexion and extension, with ranges of motion are 90–110° and 30–40°, and their cycles are 13–19 s and 11–13 s. During the use of Glove-SSCS, the temperature of gloves is from 25 to 67°C, and the surface temperature of hands is from 32 to 36°C. The temperature of Glove-SSCS can be kept at the lowest temperature of SMA operation without much impact on the human body.
登录
查看更多内容
影响因子：
2.7
作者：
Jeong, Jaeyeon;Bin Yasir, Ibrahim;Kyung, Ki-Uk
通讯作者：
Kyung, Ki-Uk
影响因子：
6.3
作者：
Rodrigue, Hugo;Wang, Wei;Ahn, Sung-Hoon
通讯作者：
Ahn, Sung-Hoon
影响因子：
4.3
作者：
Araujo RS;Silva CR;Netto SPN;Morya E;Brasil FL
通讯作者：
Brasil FL
影响因子：
7.9
作者：
Park, Seong Jun;Kim, Uikyum;Park, Cheol Hoon
通讯作者：
Park, Cheol Hoon
影响因子：
6.4
作者：
Popov, Dmitry;Gaponov, Igor;Ryu, Jee-Hwan
通讯作者：
Ryu, Jee-Hwan