An Application of Model Validation to a Thrust-Vectored Ducted Fan Engine

Bobby Bodenheimer, John Morris, and Matthew P. Newlin

California Institute of Technology

Submitted to the 1996 IFAC Conference


The technique of model validation is applied to a thrust-vectored ducted fan engine experiment at Caltech. Model validation is used to determine if the nominal model plus an uncertainty structure is able to account for data generated by the physical system. The uncertainty structure is the one used when designing H_\inf controllers for the ducted fan. Additionally, two models are compared using model validation to see which one is better. The results indicate that the present uncertainty structure is inadequate to account for some of the behavior of the ducted fan, and that one of the models is noticeably better than the other

PostScript version(941 K, 19 pages)


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