NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
full-envelope aerodynamic modeling of the harrier aircraftA project to identify a full-envelope model of the YAV-8B Harrier using flight-test and parameter identification techniques is described. As part of the research in advanced control and display concepts for V/STOL aircraft, a full-envelope aerodynamic model of the Harrier is identified, using mathematical model structures and parameter identification methods. A global-polynomial model structure is also used as a basis for the identification of the YAV-8B aerodynamic model. State estimation methods are used to ensure flight data consistency prior to parameter identification.Equation-error methods are used to identify model parameters. A fixed-base simulator is used extensively to develop flight test procedures and to validate parameter identification software. Using simple flight maneuvers, a simulated data set was created covering the YAV-8B flight envelope from about 0.3 to 0.7 Mach and about -5 to 15 deg angle of attack. A singular value decomposition implementation of the equation-error approach produced good parameter estimates based on this simulated data set.
Document ID
19880003981
Document Type
Conference Paper
Authors
Mcnally, B. David
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 5, 2013
Publication Date
October 1, 1986
Subject Category
AIRCRAFT STABILITY AND CONTROL
Report/Patent Number
NAS 1.15:88376
A-86380
NASA-TM-88376
Funding Number(s)
PROJECT: RTOP 505-66-41
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

NameType 19880003981.pdf STI