Abstract
People who suffer an amputation at the transtibial level choose to wear an ankle prosthesis to make their walk like a person without disabilities. In the present investigation, an ankle prosthesis design and simulation are made, which involves a restricted patella mechanism and a linear actuator capable of granting two degrees of freedom. A ball joint is designed where twelve springs that support the weight of a person are located, six springs comply with the eversion movement and the rest comply with the inversion movement, likewise, the actuator performs the dorsiflexion and plantar-flexion movements. The simulations were made in Inventor software. The results obtained on the ‘Y’ axis indicate a patella displacement in the inversion and eversion movement of 13.65 mm and 11.89 mm, respectively. These values are obtained when a tension of 1876.1 N is applied to the twelve springs. With these data obtained, stability and support for a person weighing 70 kg can be guaranteed, in addition, the established movement angles are com-plied. The prosthesis was built using additive and subtractive manufacturing.
Original language | English |
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Pages (from-to) | 188-193 |
Number of pages | 6 |
Journal | Materials Today: Proceedings |
Volume | 49 |
DOIs | |
State | Published - 2022 |
Event | 1st International Virtual Conference on Mechanical Engineering Trends, MET 2021 - Virtual, Online, Ecuador Duration: 24 Mar 2021 → 26 Mar 2021 |
Bibliographical note
Publisher Copyright:© 2022 Elsevier Ltd. All rights reserved.
Keywords
- Ankle
- Ball joint
- Design
- Simulation
- Springs
- Transtibial