Objective:

This research paper presents the study and simulation of a four-bar mechanism, as well as the implementation of natural coordinates as an alternative and effective method for kinematic analysis.

Methodology:

A general method for the optimal synthesis of mechanisms for lower-limb prostheses is developed by implementing intelligent computing tools such as genetic algorithms, with the purpose of reducing study times.

Results:

Through biomechanical march studies, dimensional characterization and motion parameters are obtained, such as the CIR of the knee joint, with which a prosthetic model was developed, whose structural mechanical behavior was studied under use conditions by means of the finite element method.

Conclusions:

It is evidenced that the prosthesis model fulfills the kinematic requirements and is structurally functional under static and dynamic loads that exceed the nominal values of real loads and evidence safety factors above 7.

Funding:

Universidad de Pamplona