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Journal of Central South University

, Volume 26, Issue 1, pp 106–119 | Cite as

Design of wearable hand rehabilitation glove with soft hoop-reinforced pneumatic actuator

  • Zhong-sheng Sun (孙中圣)Email author
  • Zhong-hua Guo (郭钟华)
  • Wei Tang (唐威)
Article
  • 20 Downloads

Abstract

Traditional hand rehabilitation gloves usually use electrical motor as actuator with disadvantages of heaviness, bulkiness and less compliance. Recently, the soft pneumatic actuator is demonstrated to be more suitable for hand rehabilitation compared to motor because of its inherent compliance, flexibility and safety. In order to design a wearable glove in request of hand rehabilitation, a soft hoop-reinforced pneumatic actuator is presented. By analyzing the influence of its section shape and geometrical parameters on bending performance, the preferred structure of actuator is achieved based on finite element method. An improved hoop-reinforced actuator is designed after the fabrication and initial measurement, and its mathematical model is built in order to quickly obtain the bending angle response when pressurized. A series of experiment about bending performance are implemented to validate the agreement between the finite element, mathematical and experimental results, and the performance improvement of hoop-reinforced actuator. In addition, the designed hand rehabilitation glove is tested by measuring its output force and actual wearing experience. The output force can reach 2.5 to 3 N when the pressure is 200 kPa. The research results indicate that the designed glove with hoop-reinforced actuator can meet the requirements of hand rehabilitation and has prospective application in hand rehabilitation.

Key words

pneumatic soft actuator hoop-reinforced hand rehabilitation 

基于加箍型柔性气动驱动器的可穿戴式手部康复手套设计

摘要

传统的手部康复手套通常以电机作为驱动器,具有体积大,笨重和柔顺性差的缺点。近年来, 柔性气动驱动器由于其内在的柔顺性、灵活和安全等优点,被认为相对于传统的电机驱动更适合用于 手部医疗康复。为了设计一个满足手部康复需求的可穿戴式康复手套,提出了一种加箍型的柔性气动 驱动器。基于有限元分析方法,通过分析截面形状和几何尺寸参数对于驱动器弯曲性能的影响得到驱 动器优选的结构形状和结构参数。在驱动器制作和初步测试基础上,制作改进型的加箍柔性气动驱动 器。为更快的分析驱动器在充气时弯曲角度的响应,建立加箍型驱动器的数学模型;并且为了验证有 限元分析、数学模型和实验结果之间的一致性以及加箍型柔性驱动器的性能提高,对驱动器进行一系 列的弯曲角度和输出力的性能测试实验。此外,对设计的基于加箍型柔性驱动器的可穿戴式手部康复 手套进行输出力的测试和实际佩戴体验。当压力为200 kPa 时,康复手套能够输出2.5~3 N 的力。研 究结果表明设计的基于加箍型柔性驱动器的可穿戴式手部康复手套能够满足手部康复的需求并具有 很好的应用前景。

关键词

气动 柔性驱动器 加箍型 手部康复 

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Copyright information

© Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Mechanical EngineeringNanjing University of Science and TechnologyNanjingChina
  2. 2.State Key Laboratory of Fluid Power Transmission and ControlZhejiang UniversityHangzhouChina

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