Closed-Loop Input Shaping with Quantitative Feedback Controller Applied to Slewed Two-Staged Pendulum

Authors

  • Withit CHATLATANAGULCHAI Department of Mechanical Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900
  • Takat BENJALERSYARNON Department of Mechanical Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900

Keywords:

Closed loop, input shaping, quantitative feedback, vibration reduction, two-staged pendulum

Abstract

In this paper, 2 practical techniques for control of dynamic systems are integrated. An input shaper is placed outside of a closed-loop system to reduce vibrations induced by the reference input. A quantitative feedback controller handles the vibrations induced by disturbances and noise while ensuring good tracking and stability. They are practical because designing an input shaper only requires knowledge of natural frequencies and damping ratios of the system whereas a quantitative feedback controller lets the designer quantitatively evaluate tradeoffs among tracking, disturbances and noise rejections, and stability among others. Various frequency-domain specifications are combined for the controller to meet requirements for all plants in an uncertain plant set. The proposed control system is applied to a 2-staged pendulum to suppress residual vibration from point-to-point movement.

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Published

2015-10-12

How to Cite

CHATLATANAGULCHAI, W., & BENJALERSYARNON, T. (2015). Closed-Loop Input Shaping with Quantitative Feedback Controller Applied to Slewed Two-Staged Pendulum. Walailak Journal of Science and Technology (WJST), 13(8), 595–613. Retrieved from https://wjst.wu.ac.th/index.php/wjst/article/view/1642