Artikuluak-Ingeniaritza: Envíos recientes
Mostrando ítems 341-360 de 674
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Heat transferred to the workpiece based on temperature measurements by IR technique in dry and lubricated drilling of Inconel 718
(Elsevier, 2016)In manufacturing aeronautical critical components, such as turbine discs commonly made of Inconel 718, surface integrity is crucial to ensure their fatigue life. Among the machining processes used, the drilling operation ... -
Numerical study of the heat transfer in wound woven wire matrix of a Stirling regenerator
(Elsevier, 2014)Nusselt number correlation equations are numerically derived by characterizing the heat transfer phenomena through porous medium of both stacked and wound woven wire matrices of a Stirling engine regenerator over a specified ... -
Numerical study of the pressure drop phenomena in wound woven wire matrix of a Stirling regenerator
(Elsevier, 2013)Friction pressure drop correlation equations are derived from a numerical study by characterizing the pressure drop phenomena through porous medium of both types namely stacked and wound woven wire matrices of a Stirling ... -
Procedure to predict residual stress pattern in spray transfer multipass welding
(Springer, 2015)Gas metal arc welding (GMAW) is one of the most used joining method in the industry. However, one of the main problems of this process is the generation of residual stresses which have direct impact on the fatigue life of ... -
Improving Waiting Time and Energy Consumption Performance of a Bi- objective Genetic Algorithm embedded in an Elevator Group Control System through passenger flow estimation
(Springer, 2022)Passenger waiting time is a significant issue related to the quality of service of a multiple lift system; however, energy consumption reduction is also an important concern in the lift industry. In this paper, we evaluate ... -
Thermodiffusion Coefficients of Water/Ethanol Mixtures for Low Water Mass Fractions
(Springer, 2016)The difficulty of measuring the thermodiffusion coefficients by optical properties of water-ethanol binary mixtures of approximately 20 wt % of water has been highlighted by several authors in recent years. This is because ... -
Digital Interferometry Applied to Thermogravitational Technique
(Springer, 2018)In this work, we have applied Optical Digital Interferometry approach to thermogravitational micro-column technique. By the new analysis, we examine the entire height of the micro-column and determine the complete concentration ... -
A Note on Interpreting Tool Temperature Measurements from Thermography
(Taylor & Francis, 2015)Thermography (thermal imaging) is a well-established experimental method for studying cutting tool temperature distributions. In one form, cutting edge temperatures within the chip / tool contact area are deduced from ... -
Transport properties of the binary mixtures of the three organic liquids toluene, methanol, and cyclohexane
(AIP Publishing, 2017)We report on the measurements of diffusion (D), thermodiffusion (DT), and Soret (ST) coefficients in binary pairs of the ternary system toluene-methanol-cyclohexane using different instrumental techniques: microgravity ... -
Hybrid ac/dc microgrids. Part II : Review and classification of control strategies
(Elsevier, 2015)Microgrids are envisioned as one of the most suitable alternatives for the integration of distributed generation units in the utility grid, as they efficiently combine generation, energy storage and loads in the same ... -
Determining tool/chip temperatures from thermography measurements in metal cutting
(Elsevier, 2018)Temperature measurement in metal cutting is of central importance as tool wear and surface integrity have been demonstrated to be temperature dependent. In this context, infrared thermography is presented as a reliable ... -
Hybrid ac/dc microgrids. Part I : Review and classification of topologies
(Elsevier, 2015)Microgrids have been widely studied in the literature as a possible approach for the integration of distributed energy sources with energy storage systems in the electric network. Until now the most used configuration has ... -
Reduction of distortions in large aluminium parts by controlling machining-induced residual stresses
(Springer, 2018)Large aluminium monolithic parts used in the aeronautic industry frequently show significant geometric distortions after the machining process. These distortions are the consequence of the initial residual stresses of the ... -
Control of PWM rectifier under grid voltage dips
(PAN, 2009)This paper investigates control structure for grid connected three-phase two-level Voltage Source Converter (VSC) under distorted grid voltage conditions. Grid voltage is distorted by balanced and unbalanced voltage dips ... -
Metal cutting experiments and modelling for improved determination of chip/tool contact temperature by infrared thermography
(Elsevier Ltd, 2015)Temperature measurement in metal cutting at the chip and work contact is of central importance due to temperature dependence of tool wear and surface integrity. Infrared thermography is commonly employed to determine the ... -
Sensitivity analysis of the input parameters of a physical based ductile failure model of Ti-6Al-4V for the prediction of surface integrity
(Elsevier Ltd, 2020)In machining of Ti-6Al-4V, it is commonly reported the appearance of segmented chip produced by adiabatic shearing (at high cutting speeds) and lack of ductility (at low cutting speeds). Moreover, machining is a manufacturing ... -
Surface drag analysis after Ti-6Al-4V orthogonal cutting using grid distortion
(Elsevier Ltd, 2020)Surface integrity directly affects the mechanical behavior of the workpiece, which is especially relevant on fatigue behavior. To characterize the quality of the machined surface, aspects such as material damage, roughness ... -
Influence of lubrication condition on the surface integrity induced during drag finishing
(Elsevier Ltd, 2020)Tribofinishing is one of the most popular polishing process in industry. The action of small abrasive media around parts enables to reduce significantly surface roughness and at the same time, to induce compressive residual ... -
Diagnosis and new challenges on design. The case of Mondragon Corporation's industry area
(Elsevier Ltd, 2015)La integración del diseño en los procesos de innovación conlleva una mejora de la competitividad. No obstante, investigaciones a nivel estatal indican que en la industria predomina todavía una visión estético-funcional del ...
