Sounding Rockets
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Solidification Furnace Developed for Sounding Rockets: Rio Verde Mission
ABSTRACT Brazil has a Microgravity Program mainly based on experiments using sounding rockets. Up to now, four missions have been carried out with approximately 35 experiments submitted in total. In all flights, the Associate Laboratory of Sensors and Materials of the Brazilian Space Research Institute (LABAS/INPE) participated with a fast solidification fur
J. Aerosp. Technol. Manag.. Publicado em: 03/06/2019
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2. A Sensitivity Investigation on the Aeroelastic Dynamic Stability of Slender Spinning Sounding Rockets
ABSTRACT: The present work addresses a sensitivity analysis investigation of the aeroelastic stability margins for the VSB-30 sounding rocket during the atmospheric flight phase. Parametric stability analyses are performed considering variations of the inertia properties of the modular payload. Such variations can be caused by different type and/or number of
J. Aerosp. Technol. Manag.. Publicado em: 2013-03
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3. Multidisciplinary Design Optimization of Sounding Rocket Fins Shape Using a Tool Called MDO-SONDA
Abstract: Multidisciplinary design optimization is a promising field in aerospace engineering. However, advances in this field have not been applied yet to improve Brazilian sounding rockets, such as the VS-40. Therefore, to give a perspective of the multidisciplinary design optimization in this context, this work presented a case study of this rocket, which
J. Aerosp. Technol. Manag.. Publicado em: 2012-12
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4. Solidification Furnace for Microgravity Experiments on Sounding Rockets
Abstract: The Brazilian Microgravity Program is mainly based on experiments carried out on sounding rockets. Up to present days, three missions carrying a total of 25 experiments were made. In all flights, a fast solidification furnace, capable of producing temperatures up to 900º C, was used to process metal and semiconductor alloys in microgravity envir
J. Aerosp. Technol. Manag.. Publicado em: 2012-06
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5. Construção e validação de um receptor GPS para uso espacial
O Sistema de Posicionamento Global, conhecido mundialmente pala sigla GPS, é um sistema de radionavegação construído pelos norte-americanos com intenções militares, mas que encontraram, com o passar do tempo, muitas aplicações de uso civil. No Brasil, além do desenvolvimento de foguetes de sondagem, começam a aparecer projetos de construção de mi
Publicado em: 2009
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6. Proposta de modelo sistemico de gestão estrategica para pesquisa e desenvolvimento tecnologico para aplicação no setor aeroespacial / Proposal of a systematic model of strategy management and development organization in aerospace sector
In the competitive world of these days, a system or organization has success only if it presents a differential competitive character in terms of continuos innovation. lnvesting in research and development (R&D) is a very important necessity for survival. The main Brazilian lnstitution for research and aerospace project development, Instituto de Aeronáutica
Publicado em: 2005
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7. Estudo de um sistema de controle ativo de precessão para foguetes de sondagem / A study of an active precession control system (SCAP) for sounding rockets.
During the flight of a spacecraft there will be various sources of perturbations, where the most expressive are jet misalignment, dynamic unbalance, stages separation, that induce a precession motion, in spite of the spin stabilization. This motion, whose amplitude is proportional to the magnitude of the perturbation, can become catastrophic, ultimately lead
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/08/2001
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8. Estudo de um sistema de controle ativo de precessão para foguetes de sondagem / A study of an active precession control system (SCAP) for sounding rockets.
Durante o vôo de um foguete de sondagem surgem várias perturbações, sendo as mais expressivas advindas de desvio de jato, desbalanceamento dinâmico e separação de estágios, que induzem movimento de precessão sobre o veículo, apesar da estabilização por rotação. Dependendo da sua amplitude, este movimento pode ser prejudicial para uma missão es
Publicado em: 2001
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9. PROJECT JASON MEASUREMENT OF TRAPPED ELECTRONS FROM A NUCLEAR DEVICE BY SOUNDING ROCKETS
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10. How to Activate a Plant Gravireceptor. Early Mechanisms of Gravity Sensing Studied in Characean Rhizoids during Parabolic Flights1
Early processes underlying plant gravity sensing were investigated in rhizoids of Chara globularis under microgravity conditions provided by parabolic flights of the A300-Zero-G aircraft and of sounding rockets. By applying centrifugal forces during the microgravity phases of sounding rocket flights, lateral accelerations of 0.14g, but not of 0.05g, resulted
American Society of Plant Biologists.