Global sensitivity analysis of the kinematics obtained with a multi-body optimisation using a parallel mechanism of the shoulder

摘要

In this study, a global sensitivity analysis was achieved to identify the most influent geometrical parameters of a parallel mechanism of the shoulder. Using two sensitivity analysis methods, it appears that the most important parameters are the clavicle length, the position of the scapulo-thoracic contact and the position of the ellipsoid centre. Those parameters are influent for both scapulo-thoracic angles and residual of the objective function of the multi-body optimisation.