Engineering Design
Mostrando 25-36 de 539 artigos, teses e dissertações.
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25. Estimating design hydrographs at the basin scale: from event-based to continuous hydrological simulation
RESUMO Hidrogramas de projeto são amplamente utilizados em engenharia hidrológica. Típicas aplicações adotam métodos baseados em eventos (EB), utilizando modelos chuva-vazão para converter hietogramas de projeto em hidrogramas. Incertezas incluem a definição de condições antecedentes e a premissa de equivalência entre tempos de retorno da chuva
RBRH. Publicado em: 18/02/2019
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26. XFEM Modelling in Multi-bolted Joints Using a Unified Bolt Preload
Abstract Multi-bolted joints are adopted and designed to provide efficient load transfer within assembled engineering parts. Bearing failure is favorable during design phase due to more progressive failure mode, however, ability of by-pass stress to be transferred to adjacent bolts in multi-bolted joints prone to catastrophic net-tension failure. Former appr
Lat. Am. j. solids struct.. Publicado em: 04/02/2019
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27. Implementation Analysis of a Washout Filter on a Robotic Flight Simulator - a Case Study
ABSTRACT This paper presents a detailed analysis about the implementation of a washout filter on the SIVOR (Simulador de Voo Robótico - Robotic Flight Simulator) project. The main objective of this project is to develop, on an anthropomorphic robot, a flight simulator which can be used as an Engineering Development System (EDS) and a pilot training platform
J. Aerosp. Technol. Manag.. Publicado em: 14/01/2019
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28. Differential expression of the genes involved in responses to water-deficit stress in peach trees cv. Chimarrita grafted onto two different rootstocks
ABSTRACT Water deficit is responsible for a negative impact on agricultural systems. Several physiological, biochemical, and molecular processes are initiated as a response to water-deficit stress. Quantifying the differential expression of the genes involved in the response to water-deficit stress plays a key role in the development of molecular strategies
Bragantia. Publicado em: 10/01/2019
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29. Multiobjective and Multicase Optimization of a Spacecraft Radiator
ABSTRACT Optimization is now an established tool for obtaining better solutions in engineering design. Nevertheless, the multiplicity of possible applications and the continuing search for better computational performance has motivated researchers in continuing to propose new methods, as well as improvements on existing ones. Not only optimization has allowe
J. Aerosp. Technol. Manag.. Publicado em: 07/01/2019
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30. Experimental and numerical investigation on the shock characteristics of U-notched ZL205A specimens under dynamic mixed-mode loading
Abstract Shock environment assessment and improvement during stage separation is an important issue of concern in aerospace engineering. This paper focuses on shock response caused by dynamic fracture of aluminum alloy separation plate, which usually undergoes mixed mode loading during separation. Based on Split Hopkinson Tensile Bar (SHTB) apparatus, five g
Lat. Am. j. solids struct.. Publicado em: 01/11/2018
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31. Energy Management in Industry: An Enterprise Engineering Approach
ABSTRACT Companies have needs and experience new opportunities to build their structure and align organizational process to achieve energy management with higher priority facing economic and environmental issues. The objective of this paper is to present the design and modeling of the Energy Management System (EnMS) in energy-intensive industries in an enter
Braz. arch. biol. technol.. Publicado em: 22/10/2018
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32. Comprobación de la uniformidad de resultados de un equipo de ensayos simultáneos de termofluencia
ABSTRACT The phenomenon of creep occurs in materials that operate under high temperatures and mechanical stresses, causing changes in their structures; such changes are evidenced by a progressive loss of mechanical strength. The characterization of this phenomenon should be performed with appropriate test machines, which are usually dependent on expensive te
Matéria (Rio J.). Publicado em: 19/07/2018
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33. Evolutionary Design of Engineering Constructions
Abstract The basic information required to utilize one of possible computation tools/algorithms (mainly the evolution strategy) to solve a wide class of real practical engineering optimization problems is presented and discussed in the present paper. The effectiveness of the considered method is demonstrated by the possibility of the use of different form o
Lat. Am. j. solids struct.. Publicado em: 04/06/2018
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34. Free vibration analysis and design optimization of SMA/Graphite/Epoxy composite shells in thermal environments
Abstract Composite shells, which are being widely used in engineering applications, are often under thermal loads. Thermal loads usually bring thermal stresses in the structure which can significantly affect its static and dynamic behaviors. One of the possible solutions for this matter is embedding Shape Memory Alloy (SMA) wires into the structure. In the
Lat. Am. j. solids struct.. Publicado em: 23/04/2018
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35. Aircraft Preventive Maintenance Data Evaluation Applied in Integrated Product Development Process
ABSTRACT: Initial Maintenance Review Board Report (MRBR) uses in service operation experience as a reference to define maintenance tasks intervals. However, in general, there is no structured data to compare systems performance and provide useful information to the analysts' decision-making. Even when engineering judgment is based on certification process, s
J. Aerosp. Technol. Manag.. Publicado em: 29/03/2018
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36. Low Subsonic Wind Tunnel - Design and Construction
ABSTRACT: This paper describes the design and the construction details of a medium size subsonic low-speed wind tunnel, which has been designed to achieve 90 m/s in the working section with expected low intensity turbulence level, making it available for researching in areas such as low speed aerodynamics (flight and terrestrial vehicles), sport activities,
J. Aerosp. Technol. Manag.. Publicado em: 26/02/2018