Non-linear modelling of a one-degree-of-freedom twin-rotor multi-input system using radial basis function networks

Modelling of innovative aircraft such as unmanned air vehicles (UAVs), X-wing, tilt body and delta-wing aircraft is not easy. It is argued in this paper that non-linear system identification is suitable for modelling air vehicles of complex configuration. This approach is demonstrated through a labo...

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Bibliographic Details
Main Authors: Ahmad, S.M (Author), Shaheed, M.H (Author), Chipperfield, A.J (Author), Tokhi, M.O (Author)
Format: Article
Language:English
Published: 2002.
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Description
Summary:Modelling of innovative aircraft such as unmanned air vehicles (UAVs), X-wing, tilt body and delta-wing aircraft is not easy. It is argued in this paper that non-linear system identification is suitable for modelling air vehicles of complex configuration. This approach is demonstrated through a laboratory test rig. Extensive time and frequency-domain model-validation tests are employed in order to instil confidence in the estimated model. The estimated model has a good predictive capability and can be utilized for non-linear flight simulation studies. Some aspects of the modelling approach presented may be relevant to flight mechanics modelling of new generations of air vehicle.