Space Vehicles
Mostrando 1-12 de 60 artigos, teses e dissertações.
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1. Key Terrestrial and Space Environment Sources
ABSTRACT Natural (Terrestrial & Space) Environment (NE) phenomena play a significant role in the design and flight of aerospace vehicles and in the integrity of the associated aerospace systems and structures. Both the terrestrial environment (0-90 km altitude) and the space environment (Earth orbital altitudes) parameters and their engineering application p
J. Aerosp. Technol. Manag.. Publicado em: 17/01/2020
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2. The Role of Terrestrial and Space Environments in Launch Vehicle Development
ABSTRACT: Natural (Terrestrial & Space) Environment (NE) phenomena play a significant role in the design and flight of aerospace vehicles and in the integrity of the associated aerospace systems and structures. Natural environmental design criteria guidelines described here are based on measurements and modeling of atmospheric and climatic phenomena relative
J. Aerosp. Technol. Manag.. Publicado em: 04/11/2019
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3. Panorama da literatura sobre a financeirização (1992-2017): uma abordagem bibliométrica
Resumo O propósito deste artigo é apresentar um panorama da literatura sobre a financeirização entre 1992 e 2017 a partir de uma abordagem bibliométrica, com a utilização do software VOSviewer. Especificamente, busca-se delinear o estado da arte da literatura, identificando os trabalhos, veículos de publicação e autores-chave, bem como os subcampos
Econ. soc.. Publicado em: 29/08/2019
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4. Adaptive Filtration of Parameters of the UAV Movement Based on the TDOA-Measurement Sensor Networks
ABSTRACT: In modern conditions unmanned aerial vehicles (UAVs) generate new classes of threats, including their use for terrorist purposes. A feature of modern UAVs is the ability to perform sudden maneuvers and to keep the same position in the point in space. For the description of the UAV movement with various types of maneuver it is used a rectangular coo
J. Aerosp. Technol. Manag.. Publicado em: 26/08/2019
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5. Planejamento urbano sustentável: um estudo para implantação de infraestrutura verde no Bairro Bancários, João Pessoa-PB, Brasil
Resumo O modelo atual de planejamento urbano no Brasil oferta maiores possibilidades aos veículos motorizados, buscando assim soluções que beneficiem esse segmento, gerando impactos negativos à cidade. A implantação de infraestrutura verde no Bairro Bancários em João Pessoa-PB busca, através de medidas urbanísticas mais sustentáveis, aproximar a
urbe, Rev. Bras. Gest. Urbana. Publicado em: 21/02/2019
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6. A New Buffer in Impact Reduction for Aerospace Applications
Abstract The aim of this paper is to introduce a new buffering mechanism in impact reduction during assembly process of two space vehicles. Probe-cone mechanism, due to its computational easiness, is employed to study impact interaction between multibody systems. The proposed buffer with a compact structure includes a probe equipped with axial and torsional
Lat. Am. j. solids struct.. Publicado em: 14/06/2018
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7. Space Propulsion: a Survey Study About Current and Future Technologies
ABSTRACT: Current Space Launch Vehicles use chemical reactions (solid and liquid propellants) to achieve sufficient thrust to launch artifacts and humans into space. Propulsion technologies can be framed in three different categories: "escape propulsion", "in-space propulsion", and "deep space propulsion". The launch vehicles currently used for "escape propu
J. Aerosp. Technol. Manag.. Publicado em: 26/02/2018
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8. Application of a Bibliometric Tool for Studying Space Technology Trends
ABSTRACT: The statistical analysis of academic literature, also known as “bibliometrics”, is being increasingly applied to analyse research trends, to identify emerging areas of science and to find out where and how often specific articles are cited. The aim of this study was to identify technological innovation trend patterns in the aerospace sector app
J. Aerosp. Technol. Manag.. Publicado em: 15/02/2018
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9. Status and Trends of Smallsats and Their Launch Vehicles — An Up-to-date Review
ABSTRACT This paper presents an analysis of the scenario of small satellites and its correspondent launch vehicles. The miniaturization of electronics, together with reliability and performance increase as well as reduction of cost, have allowed the use of commercials-off-the-shelf in the space industry, fostering the Smallsat use. An analysis of the launche
J. Aerosp. Technol. Manag.. Publicado em: 2017-09
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10. Evaluation of Conceptual Midcourse Guidance Laws for Long-Range Exoatmospheric Interceptors
ABSTRACT: This paper presents a comprehensive study on the performance analysis of 8 conceptual guidance laws for exoatmospheric interception of ballistic missiles. The problem is to find the effective thrust direction of interceptor for interception of short-to-super range ballistic missiles. The zero-effort miss and the generalized required velocity concep
J. Aerosp. Technol. Manag.. Publicado em: 2017-03
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11. Experimental Magnetometer Calibration for Nanosatellites’ Navigation System
ABSTRACT This article deals with the problem of Earth’s magnetic field sensors calibration in the context of low-cost nanosatellites’ navigation systems. The attitude of space vehicles can be determined from the state estimation using information from three-axis inertial and non-inertial sensors. This study considers a three-axis solid-state magnetometer
J. Aerosp. Technol. Manag.. Publicado em: 2016-03
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12. Swirl Injection Effects on Hybrid Rocket Motors
ABSTRACT: In the last decades, hybrid rocket engines have been increasingly studied and used in space vehicles. However, the low regression rates and specific impulses still represent major drawbacks to this technology. The objective of this study was to quantify the relative improvement of regression rate values with the use of a swirling flow injector in c
J. Aerosp. Technol. Manag.. Publicado em: 2015-12