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Abstract

Evolutions in Mechanical Engineering

An Investigation into a Spring Based Ankle Joint Designed for Lower Limb Prosthesis

  • Open or CloseSayem Hossain Bhuiyan*

    School of Mechanical Engineering, Engineering Campus, University of Science Malaysia, Malaysia

    *Corresponding author:Sayem Hossain Bhuiyan, Senior Lecturer, School of Mechanical Engineering, Engineering Campus, University of Science Malaysia, Malaysia

Submission: December 14, 2020; Published: March 26, 2021

DOI: 10.31031/EME.2020.03.000561

ISSN: 2640-9690
Volume3 Issu3

Abstract

A spring based ankle joint is designed to improve the performance of mechanical type prostheses. The torsional and compression springs with the help of some foot plate arrangement is used to enable the prosthesis in producing desired flexion and extension and also storing and returning energy by the ankle joint during the gait cycle. The motion analysis and Finite-Element Analysis (FEA) of ankle joint components are carried out to assess the feasibility of the design. The FEA results are then compared with the real data obtained from the literature for a similar subject. The pattern of motion analysis results has shown a great resemblance with the gait cycle of a healthy biological limb, and the design is identified to be safe with factory of safety of 1.9 from the FEA results.

Keywords: Prosthesis; Ankle joint; Biomechanics; Kinematics; Kinetics; Finite element analysis

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