Journal article 547 views 52 downloads
Operation Safety of a 2-DoF Planar Mechanism for Arm Rehabilitation
,
Matteo Russo ,
Daniele Cafolla ,
Betsy D. M. Chaparro-Rico
Inventions, Volume: 6, Issue: 4, Start page: 85
Swansea University Author:
Daniele Cafolla
-
PDF | Version of Record
© 2021 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license
Download (4.52MB)
DOI (Published version): 10.3390/inventions6040085
Abstract
The operation safety of rehabilitation devices must be addressed early in the development process and before being tested on people. In this paper, the operation safety of a 2-DoF (degrees of freedom) planar mechanism for arm rehabilitation is addressed. Then, the safety and efficiency of the device...
| Published in: | Inventions |
|---|---|
| ISSN: | 2411-5134 |
| Published: |
MDPI AG
2021
|
| Online Access: |
Check full text
|
| URI: | https://cronfa.swan.ac.uk/Record/cronfa62493 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Abstract: |
The operation safety of rehabilitation devices must be addressed early in the development process and before being tested on people. In this paper, the operation safety of a 2-DoF (degrees of freedom) planar mechanism for arm rehabilitation is addressed. Then, the safety and efficiency of the device operation is assessed through the Transmission Index (TI) distribution in its workspace. Furthermore, the produced stresses on the human arm are assessed via the FEM (finite element method) when the rehabilitation device reaches five critical positions within its workspace. The TI distribution showed that the proposed design has a proper behaviour from a force transmission point of view, avoiding any singular configuration that might cause a control failure and subsequent risk for the user and supporting the user’s motion with a good efficiency throughout its operational workspace. The FEM analysis showed that Nurse operation is safe for the human arm since a negligible maximum stress of 6.55 × 103 N/m2 is achieved by the human arm when the device is located on the evaluated critical positions. |
|---|---|
| Keywords: |
mechanical design; arm rehabilitation; assistive device; neurorehabilitation; operation safety |
| College: |
Faculty of Science and Engineering |
| Issue: |
4 |
| Start Page: |
85 |