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A Redundant Parallel Robotic Machining Tool: Design, Control and Real-Time Experiments

  • Hussein SaiedEmail author
  • Ahmed Chemori
  • Micael Michelin
  • Maher El-Rafei
  • Clovis Francis
  • Francois Pierrot
Chapter
Part of the Studies in Systems, Decision and Control book series (SSDC, volume 175)

Abstract

In this chapter, we present a machining device, named ARROW robot, designed with the architecture of a redundant parallel manipulator capable of executing five degrees-of-freedom in a large workspace. Machine-tools based on parallel robot development are considered a key technology of machining industries due to their favourable features such as high rigidity, good precision, high payload-to-weight ratio and high swiftness. The mechanism of ARROW robot isolates its workspace from any type of inside singularities allowing it to be more flexible and dynamic. An improved PID with computed feedforward controller is implemented on ARROW robot to perform real-time experiments of a machining task. The control system deals with antagonistic internal forces caused by redundancy through a regularization method, and achieves a stability conservation in case of actuators saturation. The results are evaluated using the root mean square error criteria over all the tracking trajectory confirming the high accuracy and good performance of ARROW robot in machining operations.

Keywords

Machine tool Redundant parallel robot Kinematics Dynamics Singularity analysis Motion planning Control PID Feedforward Anti-windup 

Notes

Acknowledgements

This work has been supported by the ARPE ARROW project.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Hussein Saied
    • 1
    • 2
    Email author
  • Ahmed Chemori
    • 1
  • Micael Michelin
    • 3
  • Maher El-Rafei
    • 2
  • Clovis Francis
    • 2
  • Francois Pierrot
    • 1
  1. 1.LIRMM, University of MontpellierCNRS, MontpellierFrance
  2. 2.CRSI, Lebanese UniversityBeirutLebanon
  3. 3.Tecnalia FranceCentre Spatial UniversitaireMontpellierFrance

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