Digital adaptive control of space robot manipulators using transpose of generalized Jacobian matrix

We have proposed a digital control method of space robot manipulators using the transpose of Generalized Jacobian Matrix. The trajectory of the end-effector, however, is generally curved, because a desired trajectory is not defined in the control method. Furthermore, the method is based on the supposition that all physical parameters of the robot manipulator are known; therefore, if the end-effector captures an unknown mass object, the physical parameters are changed and the control performance gets worse. In this paper, setting a desired trajectory and parameter identification are applied to the control method so as to overcome the draw-backs;. Computer simulation, where a 3 DOF planar manipulator mounted on a free-floating robot base is selected, is performed. Simulation result demonstrates the effectiveness of the combination of setting the desired trajectory and parameter identification.