Multivariable Frequency Response Functions Estimation for Industrial Robots [poster]

The accuracy of industrial robots limits its applicability for high demanding processes, like robotised laser welding. We are working on a nonlinear exible model of the robot manipulator to predict these inaccuracies. This poster presents the experimental results on estimating the Multivariable Frequency Response Functions (MFRF) of the St¨aubli RX90 robot depicted in gure 1. Future work will be the parametrisation of the frequency response functions based on physical models.