Adaptive position/force control of robot manipulators without velocity measurements: theory and experimentation

  • Authors:
  • M. S. De Queiroz;Jun Hu;D. M. Dawson;T. Burg;S. R. Donepudi

  • Affiliations:
  • Dept. of Electr. & Comput. Eng., Clemson Univ., SC;-;-;-;-

  • Venue:
  • IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
  • Year:
  • 1997

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Abstract

In this paper, we design an adaptive position/force controller for robot manipulators during constrained motion. The proposed controller can compensate for parametric uncertainty while only requiring measurements of link position and end-effector force. A filtering technique is utilized to produce a pseudo-velocity error signal and thus, eliminate the need for link velocity measurements. The control strategy provides semiglobal asymptotic tracking performance for the end-effector position and the interaction force between the constraint and the end-effector. An experimental implementation of the proposed controller on a two-link planar robot is also presented