Pseudoinverse-Based Motion Control of a Redundant Manipulator on a Flexible Base with Vibration Suppression

We propose a method for motion control of a redundant manipulator on a flexible base. Manipulator selfmotion is determined from a velocity-level additional constraint obtained from base vibration dynamics. End-effector path tracking is ensured via pseudoinverse-based velocity control. In this way, algorithmic singularities associated with the additional constraint are avoided. The vibration suppression control component is derived via the SingularityConsistent method, which aleviates destabilization during vibration suppression in the vicinity of kinematic singularities. Experimental data from a 3R planar manipulator on a flexible base confirmed the feasibility of the proposed method.