Examinando por Autor "Mejia-Gutierrez, Ricardo"
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Ítem Design of structural parts for a racing solar car(SPRINGER-VERLAG BERLIN, 2017-01-01) Betancur, Esteban; Mejia-Gutierrez, Ricardo; Osorio-Gomez, Gilberto; Arbelaez, Alejandro; Universidad EAFIT. Departamento de Ingeniería de Diseño; Ingeniería de Diseño (GRID)The racing solar cars are characterized by the constant pursuit of energy efficiency. The tight balance between energy inputs and consumption is the main reason to seek optimization in different areas. The vehicle weight is directly related to the energy consumption via rolling resistance of the tires. The relation between weight and energy consumption is quantified. The structural optimization techniques are studied and a series of rules is obtained to iteratively improve the shape of structural parts reducing its weight. The implementation is done in a practical case and satisfactory results are achieved. © Springer International Publishing AG 2017.Ítem Designing a concentrating photovoltaic (CPV) system in adjunct with a silicon photovoltaic panel for a solar competition car(SPIE-INT SOC OPTICAL ENGINEERING, 2014-01-01) Arias-Rosales, Andres; Barrera-Velásquez, J.; Osorio-Gomez, Gilberto; Mejia-Gutierrez, RicardoSolar competition cars are a very interesting research laboratory for the development of new technologies heading to their further implementation in either commercial passenger vehicles or related applications. Besides, worldwide competitions allow the spreading of such ideas where the best and experienced teams bet on innovation and leading edge technologies, in order to develop more efficient vehicles. In these vehicles, some aspects generally make the difference such as aerodynamics, shape, weight, wheels and the main solar panels. Therefore, seeking to innovate in a competitive advantage, the first Colombian solar vehicle "Primavera", competitor at the World Solar Challenge (WSC)-2013, has implemented the usage of a Concentrating Photovoltaic (CPV) system as a complementary solar energy module to the common silicon photovoltaic panel. By harvesting sunlight with concentrating optical devices, CPVs are capable of maximizing the allowable photovoltaic area. However, the entire CPV system weight must be less harmful than the benefit of the extra electric energy generated, which in adjunct with added manufacture and design complexity, has intervened in the fact that CPVs had never been implemented in a solar car in such a scale as the one described in this work. Design considerations, the system development process and implementation are presented in this document considering both the restrictions of the context and the interaction of the CPV system with the solar car setup. The measured data evidences the advantage of using this complementary system during the competition and the potential this technology has for further developments. © 2014 SPIE.Ítem Engineering education through an intercontinental PLM collaborative project: The Global Factory Case Study(IEEE, 2014-01-01) Mejia-Gutierrez, Ricardo; Carvajal-Arango, Ricardo; Zins, JulienThis article will present the experience in the development of an intercontinental collaborative project named ``Global Factory'', being the first massive academic exploration of this new way of engineering work. The main goal of the project, was to collaboratively design a virtual factory to produce vehicle combustion engines, by using the Product Lifecycle Management ( PLM) software CATIA V6. It was developed collaboratively by students from different universities around the world with distributed work and a centralized database. Therefore, interdisciplinary work was encouraged, leading students to collaborate with colleagues from different disciplines and countries. Students were subject to real conditions of international work and the implied working conditions ( e. g. cultural aspects, time-frames, communication limitations, use of Information and Communication Technologies ( ICT), etc.). Furthermore, they had to deal with the natural complexity of the technical work as well as the global interaction aspects, being a complicated task to be developed in a novel tool. Finally, the paper will describe the analysis of the project and the educational aspects that students had to face. This project sets the basis for preparing engineers of the future, who will work in a global environment.Ítem Information model for tracelinks building in early design stages(SPRINGER-VERLAG BERLIN, 2017-01-01) Rios-Zapata, David; Pailhes, Jerome; Mejia-Gutierrez, Ricardo; Universidad EAFIT. Departamento de Ingeniería de Diseño; Ingeniería de Diseño (GRID)Over the last decades many efforts are being made into either both, creating better products or improving processes, yet, generating more information, and usually leaving behind how to manage whole information that already exist and using it to improve the decision making process. This article is centred into the development of an information model that allows to have a multilevel traceability in early design stages, by definition of tracelinks of information at the design stages, where information evolves between from linguistic requirements into design variables. Regarding of the information the should be analysed the research is focused into the setting up of a graphic environment that will allow to determine relationships between different variables that exist in conceptual design, granting designers teams the opportunity to use that information in decision making situations in terms of knowing how changing one variable upsets any requirement. Finally, this article presents a case study of a design of a portable cooler in order to clarify the usage and opportunities present by the usage of the traceability model. © Springer International Publishing AG 2017.Ítem Máquinas interactivas para publicidad en empresas(Facultad de Ingeniería de la Universidad Icesi, 2012-07-30) Osorio Gomez, Gilberto; Mejia-Gutierrez, Ricardo; Echeverri, Daniela; Universidad EAFIT. Departamento de Ingeniería de Diseño; Ingeniería de Diseño (GRID)Las empresas tienen la necesidad de promover sus productos por medio de publicidad, que habitualmente se maneja de forma tradicional; sin embargo desde hace algún tiempo se presenta una oportunidad de realizar mercadeo interactivoÍtem PLM as a strategy for project structuring and coordination(2013-07-17) Mejia-Gutierrez, Ricardo; Marroquin, Carolina; Giraldo, Juan David; Universidad EAFIT. Departamento de Ingeniería de Diseño; Ricardo Mejia (rmejiag@eafit.edu.co); Carolina Marroquin (cmarroqu@eafit.edu.co); Ingeniería de Diseño - GRIDSuccessful Project Management (PM) comes from the combination of skills, knowledge, tools and techniques to strategically plan, execute and control projects with a variety of requirements and constrains -- In recent years, there has been an increased interest in implementation methodologies that not only allows successful PM, but integrates Product Lifecycle Management (PLM), Business Process Modelling (BPM) and Business Process Re-Engineering (BPR) in order to achieve efficient planning and execution under low margin profits and strict time constrains demanded by clients -- In this paper, an integrated approach for product design and development in Small and Medium Enterprises (SME) that requires PM and information integration is presented -- As a result, an implementation methodology in the Architecture Engineering and Construction (AEC) industry is proposed -- This methodology is applied to support the design and construction of waste treatment plants and includes a novel PLM implementation strategy that considers mechanisms that offer high potential for developing countries -- The design of the proposed approach is presented including how engineering processes were identified, analyzed and improved through BPM and PLM; the approach emphasizes in the standardization of process management guided by PLM tools through workflows -- This aims to impact coordination and efficiency in the company’s NPD processÍtem Procedure to determine module distribution within a solar array to increase the net energy collection in a solar competition vehicle(SPIE-INT SOC OPTICAL ENGINEERING, 2014-01-01) Suarez-Castaneda, Nicolas; Gil-Herrera, Ana; Barrera-Velásquez, J.; Osorio-Gomez, Gilberto; Mejia-Gutierrez, RicardoIn solar vehicle competition, the available space for installation of the solar panel in the car is limited. In order to optimize space, it is difficult not to install solar modules in areas impacted by shadows, even if they cause reduction of efficiency in the overall photoelectric generation. Shadow patterns arise from the relative position of the sun to the earth, and the relative position of the vehicle towards both of them. Since vehicle, earth and sun are moving in semi-predictable patterns, computer simulations can cross and match data from such sources to forecast generation behavior. The outputs of such simulations are shadow patterns on the surface of the vehicle, indicating locations that are suitable or unsuitable to install solar cells. This paper will show the design procedure of the solar panel for a Challenger Class solar vehicle that participated in the World Solar Challenge 2013, intended to increase the net energy collection. The results obtained, illustrate how the employment of a computational tool can help in the acquisition of both qualitative and quantitative information, related to shadows position and their impact on energy collection. With data inputs such as vehicle geometry and its relative position towards the route, the tool was used to evaluate different possible configurations of solar panel module distribution and select the ones that are more convenient to the given scenario. Therefore, this analysis allows improving the solar panel design by considering important variables that were often overlooked. © 2014 SPIE.Ítem Ubiquitous conceptual design of a ubiquitous application: A textile SME case study for real time manufacturing monitoring(ELSEVIER SCI LTD, 2015-02-01) Mejia-Gutierrez, Ricardo; Osorio-Gomez, Gilberto; Rios-Zapata, David; Zuluaga-Holguin, Daniel; Universidad EAFIT. Departamento de Ingeniería de Diseño; Ingeniería de Diseño (GRID)Advances in Information and Communication Technologies (ICT), computing, networking, mechanics and electronics are changing the people's way of life. Several research efforts are leading the design and development of Artifact and Service Combination (ASC) with the implementation of Ubiquitous Technologies (UTs) in multidisciplinary sectors. However, the design process of such systems often ends in the implementation of conventional approaches and tools. A Ubiquitous Design Support Environment (UDSE) comprising an application intended to guide the different activities, tools and resources applied at the conceptual design stage is presented. After needs analysis, multidisciplinary collaborations are also required in order to generate innovative conceptual solutions, focusing this approach in the conceptual design stage of traditional design methods. Some activities from the conceptual design stage are enhanced through the use of the UDSE as well as through the use of a novel ubiquity assessment tool for concept selection and validation of Ubiquitous Products and Services. Finally, a case study on a Small and Medium Enterprise (SME) from textile sector, in a developing country, is presented to analyze and validate the presented concepts. (C) 2014 Elsevier Ltd. All rights reserved.