Diseño mecánico estructural de un exoesqueleto orientado a la rehabilitación para extremidades inferiores de pacientes masculinos de edad productiva en la ciudad de Riobamba.

Abstract

The main objective of this technological proposal is the structural mechanical design of an exoskeleton oriented to the rehabilitation of lower limbs of male patients of productive age in the city of Riobamba, taking into account the anthropometric characteristics of the population. The exoskeleton was designed for two routines, one based on the human gait cycle and the other for knee rehabilitation movement. In the development of the technological proposal, the state of the art of mechatronics devices was studied, the anthropometry of the lower limbs and the cycle of the human gait were investigated and analyzed, and an analysis of alternatives was performed considering the voice of the user and of the engineer, then the anthropometric characterization was carried out, then the CAD model of the exoskeleton was carried out in SolidWorks, the dynamic analysis of the structure in MSC ADAMS was carried out, defining the simulation environment for the two routines, to obtain the force and reacting torques in each joint, proceeding to the validation of resistance of the exoskeleton in ANSYS. In the process of analysis of the proposed model, the structure was divided into four subassemblies: hip, thigh, shin and foot, when verifying their behavior under the action of forces determined with ADAMS, a minimum safety factor of 2.8, Which is presented in the quill of the exoskeleton. It is recommended the structure designed as a basis for future projects of the Faculty of Mechanics of the Polytechnic School of Chimborazo, as well as its methodology is a contribution for future research in the field of biomechanics, it meets the parameters required to carry out the physique rehabilitation of the lower extremities for men of productive age of maximum 85 kg.