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On-line Access: 2018-12-14

Received: 2018-10-06

Revision Accepted: 2018-11-17

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Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Tao Liu

https://orcid.org/0000-0002-2797-0264

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Frontiers of Information Technology & Electronic Engineering  2018 Vol.19 No.11 P.1303-1315

http://doi.org/10.1631/FITEE.1800618


Artificial muscles for wearable assistance and rehabilitation


Author(s):  Tian-yun Dong, Xiang-liang Zhang, Tao Liu

Affiliation(s):  State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   liutao@zju.edu.cn

Key Words:  Artificial muscle, Smart material, Dielectric elastomers (DE), Polyvinyl chloride (PVC) gel, Actuator, Wearable assistance, Rehabilitation


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Tian-yun Dong, Xiang-liang Zhang, Tao Liu. Artificial muscles for wearable assistance and rehabilitation[J]. Frontiers of Information Technology & Electronic Engineering, 2018, 19(11): 1303-1315.

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Abstract: 
Traditional exoskeletons have made considerable contributions to people in terms of providing wearable assistance and rehabilitation. However, exoskeletons still have some disadvantages, such as being heavy, bulky, stiff, noisy, and having a fixed center of rotation that can be a burden on elders and patients with weakened muscles. Conversely, artificial muscles based on soft, smart materials possess the attributes of being lightweight, compact, highly flexible, and have mute actuation, for which they are considered to be the most similar to natural muscles. Among these materials, dielectric elastomer (DE) and polyvinyl chloride (PVC) gel exhibit considerable actuation strain, high actuation stress, high response speed, and long life span, which give them great potential for application in wearable assistance and rehabilitation. Unfortunately, there is very little research on the application of these two materials in these fields. In this review, we first introduce the working principles of the DE and PVC gel separately. Next, we summarize the DE materials and the preparation of PVC gel. Then, we review the electrodes and self-sensing systems of the two materials. Lastly, we present the initial applications of these two materials for wearable assistance and rehabilitation.

用于可穿戴式人体助力和运动康复的人工肌肉

摘要:传统外骨骼在可穿戴式人体助力和运动康复领域做出巨大贡献。然而,外骨骼仍然面临一些挑战,如质量大、结构复杂、刚度高、噪音大,且关节处有固定旋转中心,给老年人和肌肉虚弱者带来使用困难。相反,基于柔性智能材料的人工肌肉具有质量轻、结构紧凑、刚度低和静音驱动等特性,被认为是与天然肌肉最相似的材料。介电弹性体(dielectric elastomers,DE)和聚氯乙烯(polyvinyl chloride,PVC)凝胶致动应变和致动应力大,响应速度快,驱动寿命长,在可穿戴式人体助力和运动康复领域具有很大应用潜力。然而,这两种材料在这些领域少有研究。在这篇综述中,我们首先分别介绍DE和PVC凝胶的工作原理。接着,总结常用DE材料和PVC凝胶材料。然后,回顾这两种材料所需要的驱动电极和自传感系统。最后,介绍这两种材料在可穿戴式人体助力和运动康复领域的初步应用。

关键词:人工肌肉;智能材料;介电弹性体(DE);聚氯乙烯(PVC)凝胶;执行器;可穿戴式人体助力;运动康复

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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