Análise da resistência à fadiga de tubos de aço API 5CT N80 Tipo Q soldados via processo de indução magnética de alta frequência (HFIW)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise de misturas solo-agregado reciclados de resíduos sólidos da construção civil, para fins de pavimentação de vias urbanas de baixo volume de tráfego

This work deals with the continuation of Scientific Initiation research initiated by Tamura (2012), which draws up a mixture of soil and recycled aggregate analysis for paving of low traffic volume roads using local materials from the Vale do Paraíba region. The main steps of the process were the soil and recycled aggregate characterization, along with grading tests and California Bearing Ratio (CBR) applied to the soil, the recycled aggregate and the mixture of soil and recycled aggregate; aiming their use as base and sub-base in paving urban roads. The results are discussed, emphasizing the mechanical behavior. The current results are compared with the results of IC Tamura research, taking decisions over this job to the final product best result. For a greater understanding of the work in general were described paving, its structure, its components and its physical behavior. It has been intended to emphasize the importance of the mixture of soil and recycled aggregate to meet the quality requirements and compliance with the specifications of current technical standards, in the context of durability, natural materials economy, decreases volume in landfills and cost reduction

Projeto de um tanque de armazenamento atmosférico com teto flutuante para estocagem de gasolina

In this paper are discussed the main project stages of an atmospheric storage tank with floating roof. It emphasizes the calculations of the bottom, the shell and the floating roof, discussing its stages and conditions, based on the technical standards of the project. The storage tanks are static equipment working under low pressure and has an essential importance for the operation of a process plant. This paper has the purpose of obtaining the dimensions and materials of each component of the tank through the calculations and prove them with results obtained by numerical simulation by finite elements with the help of Autodesk Inventor software, consolidating the project

Análise dos ciclos operacionais para especificação de motores de indução trifásicos

This paper addresses the three-phase induction motor by a thermal analysis of its operation, under the gaze of the standards of the Brazilian Association of Technical Standards that deal with working arrangements (operating cycles) defined by appropriate tests and for each use of the motor basis of this study, emphasizing especially the fact of the first three cycles are the cycles with greater possibilities of use for scaling a three-phase induction motor for the main industrial processes, will also be made an analysis of the reasons why the three-phase induction motors have a loss of power at altitudes above 1000 m above sea level and some methods of how to define how a three phase induction motor can be used in one of the first three working arrangements