Computer Numerical Controlled
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Numerical Description of Hot Flow Behaviors at Ti-6Al-2Zr-1Mo-1V Alloy By GA-SVR and Relative Applications
Hot compression tests of as-cast Ti-6Al-2Zr-1Mo-1V alloy in a wide temperature range of 1073-1323 K and strain rate range of 0.01-10 s-1 were conducted by a servo-hydraulic and computer-controlled Gleeble-1500 machine. The hot flow behaviors of Ti-6Al-2Zr-1Mo-1V alloy show highly non-linear relationships with strain, strain rate and temperature. In order to
Mat. Res.. Publicado em: 29/09/2016
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2. Comparison between experimental data and numerical modeling for the natural circulation phenomenon
The study of natural circulation phenomenon has been object of crescent interest in scientific community in recent years. The new generation of compact nuclear reactors uses natural circulation of the fluid as a residual heat removal cooling system in case of accident or shutdown. The objective of this paper is to present a comparison between experimental da
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011
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3. Controle de atitude de satélites artificiais utilizando um processador digital de sinais / Attitude control of satellites using a digital signal processor
This work deals with the development and implementation of an attitude control system for an artificial satellite using a Digital Signal Processor (DSP). The dissertation presents a complete study of the attitude movement modeling and control for the continuous time systems case, considering the Linear Quadratic Regulator (LQR) and Linear Quadratic Gaussian
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/09/2010
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4. THE LIMITS OF INTELLECTUAL SUBSUMPTION LABOUR IN SOFTWARE PRODUCTION PROCESS / OS LIMITES DA SUBSUNÇÃO DO TRABALHO INTELECTUAL NO PROCESSO PRODUTIVO DE SOFTWARE
The principle of modern production is to combine modern production techniques, new knowledge, combined with increasingly sophisticated computerized development processes to increase production and processing continuous model itself. The Third Industrial Revolution, characterized by extreme specialization of intellectual labor and tendency to erase the border
Publicado em: 2010
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5. Um sistema de geração de trajetórias de ferramentas em 3 eixos / A system of tool-path generation in 3 axis
A fabricação de peças mecânicas por usinagem tornou-se mais versátil com o uso de máquinas-ferramentas com Comando Numérico Computadorizado. Este recurso permitiu a obtenção de superfícies de geometria mais complexa, extremamente difíceis de se fabricar com máquinas convencionais. A tarefa de escrever os programas CNC para usinar tal geometria ta
Publicado em: 2010
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6. Avaliação numérica e experimental de técnicas de controle para conforto térmico em edificações
Abstract: This work addresses the problem of numerical and experimental analysis of comfort control algorithms for air conditioning systems with one manipulated variable. This is a frequent case present in HVAC (Heating, Ventilating and Air Conditioning) systems. The aim of HVAC equipment is to promote thermal comfort for building occupants. So, in order to
Publicado em: 2008
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7. Desenvolvimento do compÃsito Al-5,0Si-1,0Cu/Al203 CaracterizaÃÃo microestrutural e trabalhabilidade
The development of the metal matrix composites (MMC) is considered one of the major innovations of materials in the last thirty years. These new materials are receiving great attention of the researchers in the entire world for diverse industrial applications because of their high mechanical strength, much superior than non-reinforced alloys. The factors tha
Publicado em: 2005
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8. SIMULATION OF TRANSPORT AND DEPOSITION OF SILICICLASTIC SEDIMENTS IN PLATAFORM, SLOPE, AND BASIN ENVIRONMENTS / SIMULAÇÃO DE TRANSPORTE E DEPOSIÇÃO DE SEDIMENTOS SILICICLÁSTICOS EM AMBIENTES DE PLATAFORMA, TALUDE E BACIA
Sedimentary Geology deals with the study of the physical, chemical and biological processes operating in the surface of the Earth, not only in the present days, but also along all History. Therefore, it can be applied in miscellaneous fields, as, for example, in the study of fossils fuels formation. One of the main focus of sedimentary geology inhabits in de
Publicado em: 2002
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9. Desenvolvimento de um sistema de tomografia capacitiva para processos multifasicos
This work presents the development of a capacitive tomography system to the study of multiphase processes. The research starts with a literature review about tomography. A finite element analysis is accomplished to offer data for the optimization of the capacitance sensor and for a comparative analysis with the experimental results. The image reconstruction
Publicado em: 2002