论文信息 - Estimation of the lateral-directional aerodynamic parameters from flight data for the NASA F/A-18 HARV

Estimation of the lateral-directional aerodynamic parameters from flight data for the NASA F/A-18 HARV

This paper presents the results of an investigation related to the estimation of the lateral-directional aerodynamic characteristics of the NASA F/A-18 HARV from flight data. This aircraft was used in the high alpha research program at NASA/Dryden. In this study the lateral aerodynamic and control derivatives are estimated from flight data using the maximum likelihood method along with a Newton-Raphson minimization technique. The mathematical model is based on a classical static and dynamic derivative buildup. Flight data were collected over a range of 5-60-deg angle of attack from a variety of maneuvers, including large amplitude multiple doublets, optimal inputs, and pilot stick and rudder inputs. The parameter estimation code pEst, developed at NASA/Dryden, was used in this work. Results of the parameter estimation process from alpha = 5 to 60 deg are presented and discussed. (Author)

Marcello R. Napolitano | Brad Seanor | Albion H. Bowers | Alfonso C. Paris

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