Examinando por Materia "Conceptual design"
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Ítem AIR-MODELLING: A tool for gesture-based solid modelling in context during early design stages in AR environments(ELSEVIER SCIENCE BV, 2015-01-01) Arroyave-Tobon, Santiago; Osorio-Gomez, Gilberto; Cardona-McCormick, Juan F.; Universidad EAFIT. Departamento de Ingeniería de Diseño; Ingeniería de Diseño (GRID)Augmented reality (AR) technologies are just being used as interface in CAD tools allowing the user to perceive 3D models over a real environment. The influence of the use of AR in the conceptualization of products whose configuration, shape and dimensions depend mainly on the context remains unexplored. We aimed to prove that modelling in AR environments allows to use the context in real-time as an information input for making the iterative design process more efficient. In order to prove that, we developed a tool called AIR-MODELLING in which the designer is able to create virtual conceptual products by hand gestures meanwhile he/she is interacting directly with the real scenario. We conducted a test for comparing designers' performance using AIR-MODELLING and a traditional CAD system. We obtained an average reduction of 44% on the modeling time in 76% of the cases. We found that modelling in AR environments using the hands as interface allows the designer to quickly and efficiently conceptualize potential solutions using the spatial restrictions of the context as an information input in real-time. Additionally, modelling in a natural scale, directly over the real scene, prevents the designer from drawing his/her attention on dimensional details and allows him/her to focus on the product itself and its relation with the environment. © 2014 Elsevier B.V. All rights reserved.Ítem AIR-MODELLING: A tool for gesture-based solid modelling in context during early design stages in AR environments(ELSEVIER SCIENCE BV, 2015-01-01) Arroyave-Tobon, Santiago; Osorio-Gomez, Gilberto; Cardona-McCormick, Juan F.; Arroyave-Tobon, Santiago; Osorio-Gomez, Gilberto; Cardona-McCormick, Juan F.; Universidad EAFIT. Departamento de Ciencias; Lógica y ComputaciónAugmented reality (AR) technologies are just being used as interface in CAD tools allowing the user to perceive 3D models over a real environment. The influence of the use of AR in the conceptualization of products whose configuration, shape and dimensions depend mainly on the context remains unexplored. We aimed to prove that modelling in AR environments allows to use the context in real-time as an information input for making the iterative design process more efficient. In order to prove that, we developed a tool called AIR-MODELLING in which the designer is able to create virtual conceptual products by hand gestures meanwhile he/she is interacting directly with the real scenario. We conducted a test for comparing designers' performance using AIR-MODELLING and a traditional CAD system. We obtained an average reduction of 44% on the modeling time in 76% of the cases. We found that modelling in AR environments using the hands as interface allows the designer to quickly and efficiently conceptualize potential solutions using the spatial restrictions of the context as an information input in real-time. Additionally, modelling in a natural scale, directly over the real scene, prevents the designer from drawing his/her attention on dimensional details and allows him/her to focus on the product itself and its relation with the environment. © 2014 Elsevier B.V. All rights reserved.Ítem Collaborative tools for global design project management: Case study of an academic experience(AMER SOC ENGINEERING EDUCATION, 2010-01-01) Esparragoza I.; Mejia R.; Rodriguez C.The management of information and the capture of design ideas are very critical during the product development and product lifecycle management. They could be very challenging tasks when time, efficiency and quality are important and the concurrent design team is physically distributed in different locations. However, the existing technology for communication, the increase of tools over the Internet and the cloud computing model have made possible and accelerated the means of sharing information synchronous and asynchronously in a very effective way. This has facilitated the work of teams that in many cases are geographically dispersed around the world. Therefore, there is a need to start preparing the future engineers in the use of collaborative tools for global design project management not only to schedule and coordinate all the required tasks for the project but also to capture all the information, ideas and concepts generated during the design process which contains valuable data that supports design decisions. This paper presents the use of several tools for communication and project management used in academic collaborative global design projects. In these projects, students are required to work with international partners from different universities in coordinating activities and documenting the conceptual design for a given problem. The paper reports the experience using the tools and discusses opportunities and pitfalls in the use of them as they were identified by the authors. © American Society for Engineering Education, 2010.Ítem Crowdsourcing Augmented Reality Environment (CARE) for aesthetic evaluation of products in conceptual stage(ELSEVIER SCIENCE BV, 2018-08-01) Arbeláez J.C.; Osorio-Gómez G.; Universidad EAFIT. Departamento de Ingeniería de Diseño; Ingeniería de Diseño (GRID)Decision-making activities affect to a larger extent the quality, cost, time and success of a product. However, there are fewer alternatives when it comes to supporting in aesthetic evaluation during the product design stages. Therefore, is proposed a Crowdsourcing Augmented Reality Environment (CARE) that use the user's mobile devices for getting the feedback from the evaluation of products using a Semantic Differential (SD) that consider the user's context-light interaction in real time. Finally, two products were evaluated using CARE vs. the real products under different lighting and surrounding conditions. Obtaining a similar measure of products aesthetic perception between CARE and the real product, with slight variations. Additionally, an evaluation pattern among users was recognizable in the same context with slight variations using different lighting setup, that was similarly recreated with CARE. © 2018 Elsevier B.V.Ítem Diseño conceptual de un proceso para elaboración de un producto funcional a partir de Ganoderma lucidum(2006) Puerta Marín, Jennyfer; Zapata Cardona, Paula Andrea; Sáez Vega, Alex ArmandoContenido parcial: Componentes farmacológicos activos del Ganoderma lucidum -- Edulcorantes -- La estevia -- El aspartame -- La panela -- Escalamiento de bioprocesos -- Evaluación de la influencia de la presencia o ausencia de luz en el cultivo sumergido de G. lucidum -- Medio de cultivo -- Análisis de prefactibilidad -- Costos de operación.Ítem Diseño conceptual de una sonda langmüir para caracterización de plasmas fríos mediante diseño estadístico de experimentos.(IMPRENTA UNIV ANTIOQUIA, 2013-01-01) Camargo, V.; Acosta, Diego A.; JARAMILLO, JUAN MANUEL; Universidad EAFIT. Departamento de Ingeniería de Procesos; Desarrollo y Diseño de ProcesosThe characterization and control of plasma-assisted processes, has become increasingly urgent to adapt this kind technology to industrial contexts. This work presents the design and construction of a cold plasma characterization system by electrostatic means (Langmuir probe), based on concepts of plasma physics and tools of engineering, design of experiments and conceptual design. The result of this work is a functional prototype probe and some measurements on the reactor.Ítem Diseño conceptual de una sonda langmüir para caracterización de plasmas fríos mediante diseño estadístico de experimentos.(IMPRENTA UNIV ANTIOQUIA, 2013-01-01) Camargo, Victor Hugo; Acosta, Diego A.; JARAMILLO, JUAN MANUEL; Universidad EAFIT. Departamento de Ciencias Básicas; Electromagnetismo Aplicado (Gema)The characterization and control of plasma-assisted processes, has become increasingly urgent to adapt this kind technology to industrial contexts. This work presents the design and construction of a cold plasma characterization system by electrostatic means (Langmuir probe), based on concepts of plasma physics and tools of engineering, design of experiments and conceptual design. The result of this work is a functional prototype probe and some measurements on the reactor.Ítem Diseño y desarrollo de una experiencia que evidencie el fenómeno de la celda Hele-Shaw por medio de fluidos de viscosidades y colores diferentes, para la sala Física Viva del Parque Explora(2008-02-07) González Múnera, Roxana; Lineros Candamil, Andrea; Góez Restrepo, Andrés FelipeÍtem Diseño y fabricación de un recipiente para la separación de residuos en el hogar, elaborado a partir de un material reciclado(2009-10-13) Gaviria Barreneche, Camila; Márquez Vélez, Melissa; Serna Arboleda, Leidy DianaÍtem Electric hybridization kit for modification of a manual transmission motorcycle(Springer-Verlag France, 2020-01-21) Simón Polanía-Restrepo; Santiago Jaramillo-González; Osorio, G.; Universidad EAFIT. Departamento de Ingeniería de Diseño; Ingeniería de Diseño (GRID)Design and implementation processes of a functional model of an electric hybridization kit for modification of a manual transmission motorcycle are presented in this paper. Considering the complexity of the development and the need to integrate different disciplines of engineering and design, the design process follows the VDI Guideline 2206 and proposes the use of the V-model. Requirements stated by a multidisciplinary group of engineers and potential users are presented as the starting point of the design methodology, followed by a conceptual design phase, and a detail design process according to three specific domains: mechanical engineering, electronic engineering and information technology. In order to achieve fuel economy and fewer emissions, a control with three different driving modes [Internal Combustion Engine (ICE) mode, Hybrid Mode and Regenerative Mode] is proposed including an intelligent switch between a 125 c.c ICE system and a 1000 W BLDC electric motor. Finally, a functional model of the modification kit is assembled on the motorcycle and its functionality is verified. The results show a considerable decrease in the use of the ICE, identifying the electric modification kit as a viable solution for the environmental problem generated by the motorcycles segment. © 2020, Springer-Verlag France SAS, part of Springer Nature.Ítem Ergonomic analysis in conceptual design stage using a gesture-based modelling tool(Springer-Verlag France, 2017-08-01) Arroyave-Tobón, S.; Osorio-Gómez, G.; Universidad EAFIT. Departamento de Ingeniería de Diseño; Ingeniería de Diseño (GRID)Commonly, ergonomic analysis of the products' assembly processes starts in the embodiment design phase, when the information of the parts and their interaction are clearly defined. This may imply iterations during the design process for making improvements associated with ergonomic issues. We asked whether it is possible to infer possible ergonomic issues related to the manual assembly process during product conceptualisation. So, we integrated an AR-based modelling tool, in which the user creates and places virtual parts over the context in a top-down design strategy using his/her hands as interface, with an Ergonomic Assessment Module for continuous evaluation of the user postures, movements and forces related to the created parts. In that way, the spectrum of the potential solutions during the conceptualisation phase, when the information about the problem is vague enough, can be delimited and the convergence to the near-optimal solution may be more effective.Ítem Generación de un proyecto empresarial a partir del desarrollo de un alcoholímetro para las campañas de consumo de alcohol(2006-10-13) Londoño Muñoz, Carolina; Montoya Aramburo, Esteban; Ochoa Betancur, Nicolás; Bravo Montoya, Santiago; Bravo Montoya, SantiagoÍtem Modeling, simulation and test of the heat flow in a liquid nitrogen cryostat for Mössbauer spectroscopy(IOP PUBLISHING LTD, 2019-01-01) Gutiérrez N.A.; Velásquez A.A.; Gutiérrez N.A.; Velásquez A.A.; Universidad EAFIT. Departamento de Ciencias; Electromagnetismo Aplicado (Gema)In this work, we present a heat flow analysis for a conceptual design of an open cycle liquid nitrogen cryostat with application in Mössbauer spectroscopy. Initially, we made a study of the different configurations of Dewar type cryostats reported in the literature. These configurations are based on existing designs and the Mössbauer spectrometer requirements of the Instrumentation and Spectroscopy Laboratory at Universidad EAFIT in Medellin. From this study, we establish our own conceptual design. A first heat flow analysis in stationary state was calculated to obtain the dimensions of the reservoir vessel. The heat flow model obtained predicted an adequate evaporation time of the liquid nitrogen for the acquisition of Mössbauer spectra. For this model we employed the Fourier's law, the heat flow by radiation in grey bodies and the properties of 304 stainless steel, 6061 aluminium alloy and OFHC copper. In consequence, the mechanical design of the cryostat was defined and the new heat loads associated with it were added to the initial model. Finally, the prototype was built, the model was tested and some final corrections were made. © Published under licence by IOP Publishing Ltd.Ítem Multi-layer Graph Theory Utilisation for Improving Traceability and Knowledge Management in Early Design Stages(Elsevier, 2017-01-01) Ríos-Zapata, D.; Pailhès, J.; Mejía-Gutiérrez, R.Decision making processes in design often challenges designers to prioritise specifications and variables in order to develop solutions that are closer to the product's requirement goals. Concerning to support their decisions, different tools and methods are used by engineers and designers allowing to reduce uncertainty in design. Nevertheless, many of these decision support systems are focused in late design stages, such as detailed design and manufacturing design, even if the possibility to influence a new product is higher in early stages. The issues regarding to those situations are often associated to design processes related to multi-physics design, where the modification of geometric-related variables might affect the performance of the solution, and the analysis of tracking the influence of the modifications might generate reprocessing and loses of time, specially when those relations are tricky and are not easily identifiable by analysing equations and a manual analysis of requirements must be performed. This article is centred in proposing a traceability model for early design stages based in graph theory. The proposal supports the information generated in design, from the input requirements (linguistic field) up to mathematical modelling and variables definition (real numbers field). This information is arranged into different layers, allowing a multilevel approach in terms of information management. The model also features a novel solution for weighting vertex in graph model, featuring a model that balances the direction of improvement, the importance and flexibility of any specification and how its behaviour will affect the design variables associated to it. The goal of the proposed model is to offer to designers, since the conceptual design stage, a method that can show automatically the level of correlation between any pair variables and specifications by the use of information trees and featuring chains that can connect them whether there is or not a connection via equations. © 2017 The Authors.Ítem Natural User Interface for color selection in conceptual design phase(Springer-Verlag France, 2017-02-01) Arbeláez-Estrada, J.C.; Osorio-Gómez, G.; Universidad EAFIT. Departamento de Ingeniería de Diseño; Ingeniería de Diseño (GRID)In most of the surrounding discrete products, style plays a very important role. Specifically, color has a great impact in the visual perception, and its meaning can vary depending on the context where the product is located. Anyway, there are not dedicated applications devoted to support designers during this activity of color selection in the conceptual stage of the product design process. In this way, this paper presents the development and evaluation of a software platform that allows the user to choose a scheme of colors of a product concept using a Natural User Interface (NUI) in a 3D scanned context. In addition, the NUI was validated and evaluated with a case study oriented to compare the scheme of colors, for a conceptual product, selected by product designers, an expert panel and the target user in order to prove that this interface can enhance the process of color selection during the concept stage of the product design process, with regards to a traditional selection process with images and user profile. © 2015, Springer-Verlag France.Ítem A taxonomy for product shape analysis to integrate in early environmental impact estimations(Springer-Verlag France, 2017-05-01) Agudelo, L.-M.; Nadeau, J.-P.; Pailhes, J.; Mejía-Gutiérrez, R.; Universidad EAFIT. Departamento de Ingeniería de Diseño; Ingeniería de Diseño (GRID)Eco design and sustainable design are words with increasing relevance in the development of new products. One of the main reasons is the growing worry about the environmental issues that the planet is having nowadays, hence the demand for products with this aspect included. Now designers have the opportunity to adapt useful tools to estimate the environmental impact of a design concept in order to develop environmentally friendly products. However, it is only in the last stages of design process where design teams have enough information to calculate the impact of a proposal. This calculation is a tedious, expensive and demanding activity and involving a high level of knowledge about materials, manufacturing processes and eco-design strategies. For this reason, environmental impact estimations gain relevance in the early stages of the design process, where more risks can be taken with a lower cost. This article suggests a taxonomy to analyze product’s shape; in order to offer a structured and systematic way of performing a morphology classification, being able to integrate this subjective aspect to other necessary variables needed to estimate the environmental impact. It offers a way to understand how shape, material and Manufacturing process are key aspects to make environmental impact estimations of preliminary concepts during the Conceptual Design. © 2016, The Author(s).Ítem Teaching technical design specifications in product redesign processes using the FBS model(American Society of Mechanical Engineers (ASME), 2019-01-01) Montoya I.D.; Rendon-Velez E.; Gallego-Sanchez J.A.; Montoya I.D.; Rendon-Velez E.; Gallego-Sanchez J.A.; Universidad EAFIT. Departamento de Ingeniería Mecánica; Mecatrónica y Diseño de MáquinasEstablishment of technical design specifications for the redesign of technical systems, which are not derived from customers needs, relies heavily on designers intuition and experience. The very few methods proposed in the literature for the establishment of such technical design specifications hinders the learning process in conceptual design subjects. The objective of this article is to propose a structured method for identification of technical design specifications based on the function-behavior-state (FBS) model applied on redesign tasks. The method is being taught to students on the course of methodical design in order to develop their abilities on the identification of technical specifications without relying on previous knowledge on the system and relying more on detailed observation. This method is based on the observation and identification of the different states taken by the attributes of the entities conforming the system (i.e., flows-function carriers-environment). A small scale preliminary study was conducted in order to validate the initial performance of the proposed method. Eight groups made up of undergraduate mechanical engineering students with basic knowledge in conceptual design were instructed to identify technical design specifications. The redesign task was to create an automated solution for replacing the manual production process at small food manufacturing companies. Four groups of students had to establish the specifications using their experience while the other four groups had to use the proposed method. Initial results showed for the proposed method a 36% increase in the number of identified specifications. Copyright © 2019 ASME.Ítem Teaching technical design specifications in product redesign processes using the FBS model(American Society of Mechanical Engineers (ASME), 2019-01-01) Montoya I.D.; Rendon-Velez E.; Gallego-Sanchez J.A.Establishment of technical design specifications for the redesign of technical systems, which are not derived from customers needs, relies heavily on designers intuition and experience. The very few methods proposed in the literature for the establishment of such technical design specifications hinders the learning process in conceptual design subjects. The objective of this article is to propose a structured method for identification of technical design specifications based on the function-behavior-state (FBS) model applied on redesign tasks. The method is being taught to students on the course of methodical design in order to develop their abilities on the identification of technical specifications without relying on previous knowledge on the system and relying more on detailed observation. This method is based on the observation and identification of the different states taken by the attributes of the entities conforming the system (i.e., flows-function carriers-environment). A small scale preliminary study was conducted in order to validate the initial performance of the proposed method. Eight groups made up of undergraduate mechanical engineering students with basic knowledge in conceptual design were instructed to identify technical design specifications. The redesign task was to create an automated solution for replacing the manual production process at small food manufacturing companies. Four groups of students had to establish the specifications using their experience while the other four groups had to use the proposed method. Initial results showed for the proposed method a 36% increase in the number of identified specifications. Copyright © 2019 ASME.