Drag considerations for flight in atmospheric turbulence

The distribution of lift between the wing and tail surfaces of a conventional aircraft is examined in order to determine the combination that would produce the minimum drag for a given lift. Further, the center of gravity (CG) position which gives the desired lift distribution and at the same time,...

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Bibliographic Details
Main Author: Charrier, Benoit
Other Authors: Aerospace Engineering
Format: Others
Language:en_US
Published: Virginia Polytechnic Institute and State University 2015
Subjects:
Online Access:http://hdl.handle.net/10919/52080
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spelling ndltd-VTETD-oai-vtechworks.lib.vt.edu-10919-520802020-12-23T05:32:43Z Drag considerations for flight in atmospheric turbulence Charrier, Benoit Aerospace Engineering LD5655.V855 1989.C5342 Drag (Aerodynamics) Atmospheric turbulence The distribution of lift between the wing and tail surfaces of a conventional aircraft is examined in order to determine the combination that would produce the minimum drag for a given lift. Further, the center of gravity (CG) position which gives the desired lift distribution and at the same time, maintains aircraft trim is determined. Furthermore, a classic set of non-linear equations of motion for longitudinal flight is reduced to a set of linear equations by linearization. The location of the CG of the aircraft is then changed and a linear feedback control law is used to retain the dynamic characteristic (flying qualities) of the airplane. The response of the aircraft to an external disturbance such as a gust (modeled with a stochastic process) is studied in terms of drag versus CG position. Finally, it is shown that the position of the CG for minimum drag should be determined with consideration of the expected atmospheric turbulence. Master of Science 2015-05-08T19:38:44Z 2015-05-08T19:38:44Z 1989 Thesis Text http://hdl.handle.net/10919/52080 en_US OCLC# 21351744 In Copyright http://rightsstatements.org/vocab/InC/1.0/ xii, 94 leaves application/pdf application/pdf Virginia Polytechnic Institute and State University
collection NDLTD
language en_US
format Others
sources NDLTD
topic LD5655.V855 1989.C5342
Drag (Aerodynamics)
Atmospheric turbulence
spellingShingle LD5655.V855 1989.C5342
Drag (Aerodynamics)
Atmospheric turbulence
Charrier, Benoit
Drag considerations for flight in atmospheric turbulence
description The distribution of lift between the wing and tail surfaces of a conventional aircraft is examined in order to determine the combination that would produce the minimum drag for a given lift. Further, the center of gravity (CG) position which gives the desired lift distribution and at the same time, maintains aircraft trim is determined. Furthermore, a classic set of non-linear equations of motion for longitudinal flight is reduced to a set of linear equations by linearization. The location of the CG of the aircraft is then changed and a linear feedback control law is used to retain the dynamic characteristic (flying qualities) of the airplane. The response of the aircraft to an external disturbance such as a gust (modeled with a stochastic process) is studied in terms of drag versus CG position. Finally, it is shown that the position of the CG for minimum drag should be determined with consideration of the expected atmospheric turbulence. === Master of Science
author2 Aerospace Engineering
author_facet Aerospace Engineering
Charrier, Benoit
author Charrier, Benoit
author_sort Charrier, Benoit
title Drag considerations for flight in atmospheric turbulence
title_short Drag considerations for flight in atmospheric turbulence
title_full Drag considerations for flight in atmospheric turbulence
title_fullStr Drag considerations for flight in atmospheric turbulence
title_full_unstemmed Drag considerations for flight in atmospheric turbulence
title_sort drag considerations for flight in atmospheric turbulence
publisher Virginia Polytechnic Institute and State University
publishDate 2015
url http://hdl.handle.net/10919/52080
work_keys_str_mv AT charrierbenoit dragconsiderationsforflightinatmosphericturbulence
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