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Task Space Trajectory Tracking Control of Robot Manipulators with Uncertain Kinematics and Dynamics

Author

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  • Xichang Liang
  • Yi Wan
  • Chengrui Zhang

Abstract

To improve the tracking precision of robot manipulators’ end-effector with uncertain kinematics and dynamics in the task space, a new control method is proposed. The controller is based on time delay estimation and combines with the nonsingular terminal sliding mode (NTSM) and adaptive fuzzy logic control scheme. Kinematic parameters are not exactly required with the consideration of kinematic uncertainties in the controller. No dynamic models or numerous parameters of the robot manipulator system are required with the use of TDE. Thus, the controller is simple structure and suitable for practical applications. Furthermore, errors caused by time delay estimation are compensated by the adaptive fuzzy nonsingular terminal sliding mode scheme. The simulation is performed on a 2-DOF robot manipulator with three cases in the task space. The results show that the proposed controller provides faster convergence rate and higher tracking precision than TDE based NTSM and improved TDE based NTSM controller.

Suggested Citation

  • Xichang Liang & Yi Wan & Chengrui Zhang, 2017. "Task Space Trajectory Tracking Control of Robot Manipulators with Uncertain Kinematics and Dynamics," Mathematical Problems in Engineering, Hindawi, vol. 2017, pages 1-19, December.
    • Handle: RePEc:hin:jnlmpe:4275201
    DOI: 10.1155/2017/4275201
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