A New Approach to Parametric Identification of a Single-Link Flexible-Joint Manipulator

  • Authors:
  • Jeng Tze Huang

  • Affiliations:
  • Department of Electronic Engineering, Van Nung Institute of Technology, Chungli, 340, Taiwan/ e-mail: jthuang@cc.vit.edu.tw

  • Venue:
  • Journal of Intelligent and Robotic Systems
  • Year:
  • 2003

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Abstract

A new parametric observer for identifying the system parameters of a single-link flexible-joint manipulator is presented. The design achieves the desired goals provided two conditions are satisfied, i.e., the basis functions are linearly independent in terms of the steady-state trajectories and the parameter errors converge to some constants eventually. It can be incorporated with any a control scheme sustaining such steady-state trajectories. No acceleration signals are required. However, the motor inertia must be given a priori. Numerical study of the proposed scheme with a specific robust control law is undertaken to demonstrate its validity.