Parametric modelling and dynamic characterization of a two-degree-of-freedom twin-rotor multi-input multi-output system

S. M. Ahmad, A. J. Chipperfield, M. O. Tokhi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

A mathematical model for the dynamic characterization of a two-degree-of-freedom (2 DOF) twin-rotor multi-input multi-output (MIMO) system (TRMS) in hover is extracted using a black box system identification technique. The behaviour of the TRMS, in certain aspects, resembles that of a helicopter, with a significant cross-coupling between longitudinal and lateral directional motions. Hence, it is an interesting identification and control problem. Identification for a 2 DOF, rigid-body, discrete-time linear model is presented in detail. The extracted model has a good degree of prediction capability. The modelling approach presented is suitable for complex new-generation air vehicles.

Original languageEnglish
Pages (from-to)63-78
Number of pages16
JournalProceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
Volume215
Issue number2
DOIs
StatePublished - 2001
Externally publishedYes

Keywords

  • Discrete-time systems
  • Helicopter
  • MIMO linear identification
  • TRMS
  • Time and frequency domain analysis

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering

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