Aerodynamic Maneuvers
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. An Extended Kalman Filter-Based Technique for On-Line Identification of Unmanned Aerial System Parameters
ABSTRACT: The present article deals with the identification, at the same time, of aircraft stability and control parameters taking into account dynamic damping derivatives. Such derivatives, due to the rate of change of the angle of attack, are usually neglected. So the damping characteristics of aircraft dynamics are attributed only on pitch rate derivative
J. Aerosp. Technol. Manag.. Publicado em: 2015-09
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2. Further developments in unsteady compressible vortex lattice method in two dimensional motion.
Unsteady phenomena like flutter, buffeting, rapid maneuvers in flight and gust entry are usually modeled and studied by a theoretical treatment involving potential flow methods. The resulting equation from this approach is the governing differential equation for general non-steady, non-viscous, potential flow known as convected wave equation. The disturbance
Publicado em: 2007
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3. Estudo de transferências orbitais incluindo manobras aeroassistidas / Study of orbital transfers with aeroassisted maneuvers
Este trabalho apresenta uma análise de missões espaciais através do desenvolvimento de um programa computacional para o cálculo de manobras aerodinâmicas e das manobras propulsivas necessárias para sua implementação. Além do desenvolvimento numérico, um estudo analítico contempla a realização da fase aeroassistida deste tipo de manobra. Nessa an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 200102
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4. Estudo de transferências orbitais incluindo manobras aeroassistidas / Study of orbital transfers with aeroassisted maneuvers
This work presents an analysis of space missions through the development of a software package for the calculation of aerodynamic maneuvers and of the required thrust maneuvers for their implementation. Besides the numerical development, an analytical study contemplates the accomplishment of the acroassisted phase of this maneuver type. This analysis include
Publicado em: 2001
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5. Resolution of a paradox: Hummingbird flight at high elevation does not come without a cost
Flight at high elevation is energetically demanding because of parallel reductions in air density and oxygen availability. The hovering flight of hummingbirds is one of the most energetically expensive forms of animal locomotion, but hummingbirds are nonetheless abundant at high elevations throughout the Americas. Two mechanisms enhance aerodynamic performan
National Academy of Sciences.