Title :
Feed-forward control strategy for an industrial robot with elastic links and joints
Author_Institution :
Technische Universität München Arcisstr, West Germany
Abstract :
For a lightweight industrial robot the influence of elasticity of joints and links is studied. The manipulator is modeled as a multibody system with distributed parameters. Standard control strategies yield bad performance in following a given trajectory or approaching a target point. Therefore the desired joint angles calculated under the assumption of rigid joints and links are modified by taking into account "nominal deflections" By this feedforward control strategy that compensates for the elastic deformations the oscillations of the endpoint of the manipulator can be reduced significantly.
Keywords :
Automatic control; Construction industry; Differential equations; Feedforward systems; Industrial control; Manipulator dynamics; Payloads; Robot kinematics; Robotics and automation; Service robots;
Conference_Titel :
Robotics and Automation. Proceedings. 1987 IEEE International Conference on
DOI :
10.1109/ROBOT.1987.1087868