Diseño del mecanismo de silla de ruedas bipedestadora basculante para personas adultas con discapacidad en sus miembros inferiores

Abstract

Individuals who lack mobility in their lower limbs are susceptible to diseases and health issues due to the high cost of caring for their health while providing greater autonomy to himself or herself. To manage this, a design was developed for a tilting bipedal wheelchair mechanism aimed at individuals with lower limb disabilities. The mechanism design considered the anthropometric measurements of an adult weighing 100 kilograms. Using SAM and SolidWorks, three concept mechanisms were generated which were subsequently subjected to analysis. Employing the graphical dispositional method of mechanism design, both the bipedal and tilting mechanisms were derived. With the help of the CES EduPack software and analyzing the QFD matrix, priority was given to the most important characteristics for the selection of the material. Design parameters such as stroke and applied force were considered during the actuator selection process. Subsequently, a software-based analysis was conducted to verify the functionality of the mechanism. Finite element method concepts were applied to evaluate the material's strength against the forces acting upon it. Finally, evaluations were conducted using dynamic analysis curves and mechanism graphs. These analyses confirmed that the mechanism's geometry, measurements, and design met the standards proposed in the project.