Engineers
Mostrando 25-36 de 251 artigos, teses e dissertações.
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25. Investigation of Wedge Water-Entry Under Symmetric Impact Loads by Experimental Tests
Abstract One of the main challenges for engineers in designing high-speed crafts is the evaluation of hydrodynamic loads during the impact of hull to wave’s surface. This paper presents an experimental investigation on the pressure distribution on three wedge-sections with 15°, 20° and 30° deadrise during water-entry. Assessment of pressure distribution
Lat. Am. j. solids struct.. Publicado em: 2017-06
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26. Tip Deflection Determination of a Barrel for the Effect of an Accelerating Projectile Before Firing Using Finite Element and Artificial Neural Network Combined Algorithm
Abstract For realistic applications, design and control engineers have limited modelling options in dealing with some vibration problems that hold many nonlinearity such as non-uniform geometry, variable velocity loadings, indefinite damping cases, etc. For these reasons numerous time consuming experimental studies at high costs must be done for determining
Lat. Am. j. solids struct.. Publicado em: 2016-10
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27. Guide for Recommended Practices to Perform Crack Tip Opening Displacement Tests in High Strength Low Alloy Steels
Abstract: Fracture mechanics approach is important for all mechanical and civil projects that might involve cracks in metallic materials, and especially for those using welding as a structural joining process. This methodology can enhance not only the design but also the service life of the structures being constructed. This paper includes detailed considera
Soldag. insp.. Publicado em: 2016-09
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28. Design of a Nanosatellite Ground Monitoring and Control Software – a Case Study
ABSTRACT The growing countries that have carried out the development of CubeSat missions for academic purposes do not offer aerospace engineering programs at their universities. This causes difficulties for traditional engineers upon the formal use of different standards and frameworks for aerospace development, such as the European Cooperation for Space Sta
J. Aerosp. Technol. Manag.. Publicado em: 2016-06
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29. Investigation on the optimal simplified model of BIW structure using FEM
Abstract At conceptual phases of designing a vehicle, engineers need simplified models to examine the structural and functional characteristics and apply custom modifications for achieving the best vehicle design. Using detailed finite-element (FE) model of the vehicle at early steps can be very conducive; however, the drawbacks of being excessively time-con
Lat. Am. j. solids struct.. Publicado em: 2015-10
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30. A Multidisciplinary Design Optimization Tool for Spacecraft Equipment Layout Conception
ABSTRACT: One issue the design team has to face in the process of building a new spacecraft, is to define its mechanical and electrical architecture. The choice of where to place the spacecraft´s electronic equipment is a complex task, since it involves simultaneously many factors, such as the spacecraft's required position of center of mass, moments of ine
J. Aerosp. Technol. Manag.. Publicado em: 2014-12
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31. Geração de viagens em estacionamentos: o caso do centro de Niterói
Este artigo pretende estabelecer equações e taxas de geração de viagens em estacionamentos localizados em áreas centrais, com base na metodologia tradicional adotada pelo Institute of Transportation Engineers - ITE, a partir dos dados levantados em 29 estabelecimentos privados de uso público existentes no centro da cidade de Niterói-RJ. Os resultados
J. Transp. Lit.. Publicado em: 2014-07
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32. Análisis de tasas y modelos para generación de viajes en hipermercados y supermercados
The location of commercial trip generation hubs produces urban impacts in the area of influence since they increase the number of vehicle trips that affects environment and quality of life. For better understanding of this phenomenon, it is reported in this article an analysis of trip generation rates and models in hypermarkets and supermarkets considering d
J. Transp. Lit.. Publicado em: 2014-07
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33. Análise da evolução das taxas de geração de viagens publicadas pelo ITE para estabelecimentos de ensino
O presente artigo faz uma análise da documentação incluída em diferentes edições do manual Trip Generation, publicado pelo ITE (Institute of Transportation Engineers), para os usos do solo 530 (Instituições de Ensino Médio) e 550 (Universidades), contemplando um período de avaliação superior a 20 anos. São feitas considerações e recomendaçõe
J. Transp. Lit.. Publicado em: 2014-07
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34. Influence of granitic aggregates from northeast Brazil on the alkali-aggregate reaction
The alkali-aggregate reaction (AAR) in concrete structures is a problem that has concerned engineers and researchers for decades. This reaction occurs when silicates in the aggregates react with the alkalis, forming an expanded gel that can cause cracks in the concrete and reduce its lifespan. The aim of this study was to characterize three coarse granitic a
Mat. Res.. Publicado em: 15/04/2014
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35. Medical equipment classification according to corrective maintenance data: a strategy based on the equipment age
INTRODUCTION: Decision-making on medical equipment management is a daily task for clinical engineers, but it may prove difficult to easily extract relevant information from the large amount of data from computerized maintenance management systems. This article describes a simple method of medical equipment classification based on corrective maintenance indic
Rev. Bras. Eng. Bioméd.. Publicado em: 2014-03
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36. Entre identidad y diferencia: apuntes para una economía política del cuerpo y la ciudad
The text presents a reflection that places the question of identity and difference in the scope of a possible analysis of the body and the city from the perspective of a certain conception of political economy. In particular, it reflects from the notion of totality. The main idea is that the body and the city are not different things, that the city is not si
Soc. estado.. Publicado em: 2013-12