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Métodos numéricos não convencionais na abordagem dinâmica em cascas de revolução com simetria axial de forças
(2017-12-21)
This dissertation has as objective presents and checks a series of non-conventional methods for numerical analysis in comparison with the finite element method (FEM) applied commercially. Initially is performed a bibliographic ...
Desenvolvimento da modulação Space Vector para um inversor trifásico multinível híbrido assimétrico de nove níveis por fase com Ponte-H em cascata
(2017-09-29)
This dissertation proposes to develop the space vector (SV) modulation for a three phase hybrid asymmetric multilevel inverter of nine levels per phase with cascaded H-bridge (CHB). Performance verification occurs through ...
Estudo sobre oportunidades de recuperação de calor em uma indústria frigorífica para substituição de uma caldeira geradora de vapor por um aquecedor de água
(2017-08-15)
From among the constants climatic changes that has been occurring throughout the ages, undoubtedly the what worries man is temperature variation, caused mainly by the increase far too consumption of fossil fuels and ...
Avaliação de cenários para substituição de uma frota veicular na administração pública baseada na determinação da vida útil econômica
(2017-08-15)
Brazilian Federal Constitution, created in 1988, was responsible for establishing ways to modernize brazilian public administration practices. The management administration model, proposed in the next decade, expanded the ...
Modelo para avaliação da vida útil econômica de máquinas e equipamentos utilizando a programação dinâmica e o método de Monte Carlo
(2017-08-24)
The replacement study of capital goods provides to the company an overview about the useful life of its assets and provides planning for effecting, within an optimal time, the exchange of the present good by a substitute ...
Eficiência da moagem de pó cerâmico em moinho agitador de esferas
(2017-11-16)
In this research, wet milling of silica powder was carried out up to nanoparticles level. A work strategy has been established in which maximum efficiency is achieved. The grinding efficiency is related to the smaller ...
Análise comparativa do desempenho de turbocompressores veiculares com câmara de combustão tubular na microgeração de energia
(2017-10-25)
This master's work presents the development of a work that has the objective of evaluating the composition of vehicular turbochargers for microgeneration of energy and to develop a tubular combustion chamber model to equip ...