Design and optimization of a powered ankle-foot prosthesis using a geared five-bar spring mechanism
To replace the lost limb, the active prosthesis foot has been investigated for several decades. The current powered ankle-foot prostheses function like a human ankle using accurate control systems. However, it is still hard to accurately mimic the impedance characteristics of the human ankle, especi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2017-05-01
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| Series: | International Journal of Advanced Robotic Systems |
| Online Access: | https://doi.org/10.1177/1729881417704545 |
| _version_ | 1818160168284717056 |
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| author | Dianbiao Dong Wenjie Ge Shumin Liu Fan Xia Yuanxi Sun |
| author_facet | Dianbiao Dong Wenjie Ge Shumin Liu Fan Xia Yuanxi Sun |
| author_sort | Dianbiao Dong |
| collection | DOAJ |
| description | To replace the lost limb, the active prosthesis foot has been investigated for several decades. The current powered ankle-foot prostheses function like a human ankle using accurate control systems. However, it is still hard to accurately mimic the impedance characteristics of the human ankle, especially at the end of the controlled dorsiflexion phase. This article presents the mechanical design, optimization, and experiment evaluation of a novel powered ankle-foot prosthesis using a geared five-bar spring mechanism. Compared with the traditional structure of single axis with elastic unit, the geared five-bar spring mechanism has more flexible movements. The optimization and experiment results of the geared five-bar spring mechanism show that it can provide a better performance on impedance torque in controlled dorsiflexion phase. Compared with the traditional powered ankle-foot prosthesis, the powered ankle-foot prosthesis using the geared five-bar spring mechanism may have the ability to provide the patients with better security during controlled dorsiflexion phase. |
| first_indexed | 2024-12-11T15:57:35Z |
| format | Article |
| id | doaj.art-95b63ae047684a38a624b5524e1390f6 |
| institution | Directory Open Access Journal |
| issn | 1729-8814 |
| language | English |
| last_indexed | 2024-12-11T15:57:35Z |
| publishDate | 2017-05-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | International Journal of Advanced Robotic Systems |
| spelling | doaj.art-95b63ae047684a38a624b5524e1390f62022-12-22T00:59:24ZengSAGE PublishingInternational Journal of Advanced Robotic Systems1729-88142017-05-011410.1177/172988141770454510.1177_1729881417704545Design and optimization of a powered ankle-foot prosthesis using a geared five-bar spring mechanismDianbiao DongWenjie GeShumin LiuFan XiaYuanxi SunTo replace the lost limb, the active prosthesis foot has been investigated for several decades. The current powered ankle-foot prostheses function like a human ankle using accurate control systems. However, it is still hard to accurately mimic the impedance characteristics of the human ankle, especially at the end of the controlled dorsiflexion phase. This article presents the mechanical design, optimization, and experiment evaluation of a novel powered ankle-foot prosthesis using a geared five-bar spring mechanism. Compared with the traditional structure of single axis with elastic unit, the geared five-bar spring mechanism has more flexible movements. The optimization and experiment results of the geared five-bar spring mechanism show that it can provide a better performance on impedance torque in controlled dorsiflexion phase. Compared with the traditional powered ankle-foot prosthesis, the powered ankle-foot prosthesis using the geared five-bar spring mechanism may have the ability to provide the patients with better security during controlled dorsiflexion phase.https://doi.org/10.1177/1729881417704545 |
| spellingShingle | Dianbiao Dong Wenjie Ge Shumin Liu Fan Xia Yuanxi Sun Design and optimization of a powered ankle-foot prosthesis using a geared five-bar spring mechanism International Journal of Advanced Robotic Systems |
| title | Design and optimization of a powered ankle-foot prosthesis using a geared five-bar spring mechanism |
| title_full | Design and optimization of a powered ankle-foot prosthesis using a geared five-bar spring mechanism |
| title_fullStr | Design and optimization of a powered ankle-foot prosthesis using a geared five-bar spring mechanism |
| title_full_unstemmed | Design and optimization of a powered ankle-foot prosthesis using a geared five-bar spring mechanism |
| title_short | Design and optimization of a powered ankle-foot prosthesis using a geared five-bar spring mechanism |
| title_sort | design and optimization of a powered ankle foot prosthesis using a geared five bar spring mechanism |
| url | https://doi.org/10.1177/1729881417704545 |
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