Structural Static Characteristic Analysis of Lower Limb Exoskeleton Based on Finite Element Modeling

Abstract

Lower limb rehabilitation exoskeletons worn on the outside of the body, which has many features such as wearing comfortable, using safety, efficient rehabilitation training and etc. Structural performance of the exoskeleton determines the overall quality. In the paper, the concepts of the finite element analysis and the theory basis have been introduced. According to ANSYS Workbench, the static characteristic analysis has been carried on in the human body normal gait posture. The analysis results show that the design of the exoskeleton strength stiffness could satisfy the requirements of weight 100 kg patients using; the stress value and deformation value larger area of the exoskeleton have been achieved. It provided theoretical data for security maintenance of the late exoskeleton.