Author: Vladislav Klein
Publisher:
ISBN:
Category : Oscillations
Languages : en
Pages : 46
Book Description
Estimation of Aircraft Nonlinear Unsteady Parameters From Wind Tunnel Data
Estimation of Aircraft Nonlinear Unsteady Parameters from Wind Tunnel Data
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722208226
Category :
Languages : en
Pages : 44
Book Description
Aerodynamic equations were formulated for an aircraft in one-degree-of-freedom large amplitude motion about each of its body axes. The model formulation based on indicial functions separated the resulting aerodynamic forces and moments into static terms, purely rotary terms and unsteady terms. Model identification from experimental data combined stepwise regression and maximum likelihood estimation in a two-stage optimization algorithm that can identify the unsteady term and rotary term if necessary. The identification scheme was applied to oscillatory data in two examples. The model identified from experimental data fit the data well, however, some parameters were estimated with limited accuracy. The resulting model was a good predictor for oscillatory and ramp input data. Klein, Vladislav and Murphy, Patrick C. Langley Research Center RTOP 522-33-11-05...
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722208226
Category :
Languages : en
Pages : 44
Book Description
Aerodynamic equations were formulated for an aircraft in one-degree-of-freedom large amplitude motion about each of its body axes. The model formulation based on indicial functions separated the resulting aerodynamic forces and moments into static terms, purely rotary terms and unsteady terms. Model identification from experimental data combined stepwise regression and maximum likelihood estimation in a two-stage optimization algorithm that can identify the unsteady term and rotary term if necessary. The identification scheme was applied to oscillatory data in two examples. The model identified from experimental data fit the data well, however, some parameters were estimated with limited accuracy. The resulting model was a good predictor for oscillatory and ramp input data. Klein, Vladislav and Murphy, Patrick C. Langley Research Center RTOP 522-33-11-05...
Modeling of longitudinal unsteady aerodynamics of a wingtail combination
Author:
Publisher: DIANE Publishing
ISBN: 1428996788
Category :
Languages : en
Pages : 29
Book Description
Publisher: DIANE Publishing
ISBN: 1428996788
Category :
Languages : en
Pages : 29
Book Description
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1154
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1154
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 602
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 602
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
NASA Langley Scientific and Technical Information Output: 1998
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 166
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 166
Book Description
U.S. Government Research Reports
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 188
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 188
Book Description
AIAA Aerospace Sciences Meeting and Exhibit, 42nd
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 590
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 590
Book Description
NASA Technical Note
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 936
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 936
Book Description
Aeronautical Engineering
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 538
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 538
Book Description