Vibration control of pitch movement using command shaping techniques

F. M. Aldebrez, M. O. Tokhi, Z. Mohamed, S. M. Ahmad

Research output: Contribution to journalConference articlepeer-review

7 Scopus citations


This paper investigates the development of feedforward control strategies for vibration control of pitch movement of a twin rotor multi-input multi-output system (TRMS) using command shaping techniques. The TRMS is a laboratory platform designed for control experiments. Three feedforward controllers: input-shaper, low-pass filtered and band-stop filtered, are designed based on the natural frequencies and damping ratios of the system for resonance suppression produced by the main rotor around the longitudinal axis, while the lateral axis is physically constrained. Performances of the three controllers are assessed in terms of level of vibration reduction at the system's natural frequencies. The response of the system (pitch movement) to the shaped and filtered inputs is compared with its response to the unshaped input. Simulation results are presented in time and frequency domains.

Original languageEnglish
Article number1247741
Pages (from-to)447-452
Number of pages6
JournalIEEE International Conference on Emerging Technologies and Factory Automation, ETFA
Issue numberJanuary
StatePublished - 2003
Externally publishedYes
Event2003 IEEE Conference on Emerging Technologies and Factory Automation, ETFA 2003 - Lisbon, Portugal
Duration: 16 Sep 200319 Sep 2003

Bibliographical note

Publisher Copyright:
© 2003 IEEE.

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Computer Science Applications


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