IDENTIFICATION OF A NONLINEAR AERODYNAMIC MODEL OF THE F-14 AIRCRAFT

Citation
Tl. Trankle et Sd. Bachner, IDENTIFICATION OF A NONLINEAR AERODYNAMIC MODEL OF THE F-14 AIRCRAFT, Journal of guidance, control, and dynamics, 18(6), 1995, pp. 1292-1297
Citations number
21
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Instument & Instrumentation","Aerospace Engineering & Tecnology
ISSN journal
0731-5090
Volume
18
Issue
6
Year of publication
1995
Pages
1292 - 1297
Database
ISI
SICI code
0731-5090(1995)18:6<1292:IOANAM>2.0.ZU;2-#
Abstract
This effort identified a full subsonic flight envelope model of the ae rodynamics of the F-14 aircraft, The data set consisted of 8.9 h of fl ight data stored as 983 separate maneuver files, The analysis used a u nified system identification computer code implementing kinematic cons istency, model structure determination, and parameter estimation funct ions, The code implements generalized filter error, encompassing both equation error and output error types of performance measures. The cod e can operate in a nearly automated manner, completely processing abou t 1 h of flight data in about 40 h of Unix workstation time. The resul ting aerodynamic model represents nonlinear angle of attach, Mach numb er, and static flexibility effects, This model has 521 independent aer odynamic terms and 97 independent instrumentation terms. The identifie d model is an incremental model that adds to an existing nonlinear sim ulation, One and two dimensional spline functions represent the aerody namic coefficients.