Maestría en Ingeniería (tesis)

URI permanente para esta colección

https://hdl.handle.net/10784/80

Examinar

Mostrando 1 - 20 de 633

A comparative study of the hydrodynamic performance of planing boats through experimental and statistical approaches
(Universidad EAFIT, 2021) Giraldo Pérez, Erick Santiago; Osorio Gómez, Gilberto
A Fixed Grid method for hyperelastic models in large strain analysis using the level set method
(Universidad EAFIT, 2014) Ramírez Benítez, William Alberto; García Ruíz, Manuel Julio
A Fixed Grid Finite Element Method (FGFEM) in addition to a Mooney-Rivlin hyperelastic model is introduced. This method uses the mixed finite element formulation to treat the elements, but classifying these in a fixed cartesian grid that is superimposed over the model geometry -- In order to do this, the boundary tracking is achieved by solving the level set equation -- A numerical extrapolation of the displacement field from the solid domain to the entire fixed grid domain is done -- The system of equations are solved by the use of an incremental Newton-Raphson scheme -- Finally, some numerical examples are implemented and good convergence results are obtained for the displacement field, showing that FGFEM for the hyperelastic model is suitable for mechanical problems undergoing large strains and large displacements
A framework for Rapid Product Development based on digital techniques : an industrial case study of ceramic-based product
(Universidad EAFIT, 2023) Trujillo Ángel, Luis Alfonso; Rodríguez Arroyave, Carlos Arturo
A logistic process immaturity model proposal
(Universidad EAFIT, 2020) Márquez Gutiérrez, Mateo; Carmona González, Guillermo León; Castro Zuluaga, Carlos Alberto; Carmona González, Guillermo León; Castro Zuluaga, Carlos Alberto
A new way for learning languages through virtual inmmersive environments
(Universidad EAFIT, 2012) Torres Arias, Diego Mauricio; Treftz, Helmuth
Immersive virtual environments or metaverse are representations of real or imaginative worlds created on the digital world with the purpose of making real situations or impossible experiences in the real world -- Users on these worlds represent themselves via avatars that interact in representation of the user. At present, these virtual worlds are used for business processes, research and education -- The purpose of this article is to describe the process of adapting an immersive virtual environment to be used as a virtual teaching-learning tool of the English language as a second language -- The immersive virtual world was tested in a learning environment, and the results of the evaluation is presented -- This research started with the identiﬁcation of the adequate immersive platform, students group selection, test design and implementation in order to determining if it is more successful to teach over a virtual immersive environment or in the real classroom -- We proposed the hypothesis : “the Second Life tool is, at least, as effective in teaching a second language, in this case English, in A2 level students in the Common European Framework as the face-to-face mode.” and in order to validate it, a set of experiments were conducted -- Diﬀerent measures of results were given comparing the performance of an experimental group against a control group -- The results of the experiments show that the experimental, using the virtual environment, has better improvement compared to the control group -- These results indicate that virtual immersive environments are efficient tools, useful in teaching-learning language processes
A Propulsion System Design Methodology Based on Overall Efficiency Optimization for Electrically-Powered Vessels
(Universidad EAFIT, 2022) Mira Pineda, Juan David; Mejía-Gutiérrez, Ricardo
Boats have historically been an important mean of transportation, both for passengers and cargo, mainly in water-rich countries. Today, the electrification of transportation includes fluvial navigation, but energy efficiency remains a key issue. Energy consumption, in electrically powered vessels, is strongly influenced by several technical systems (e.g. hydrodynamics, battery, propulsion, etc.). While advances in some of those main systems are found in the literature, this research work focuses on the design and optimization of the “propulsion system (PS)” (Motor–Transmission–Propeller). By implementing an electric motor, the interaction of the mechanical components can be analyzed to find the optimal variables that will govern the performance of the vessel and that allow the optimal Motor–Transmission–Propeller combination. This manuscript presents the development of a multivariable optimization methodology to maximize the overall efficiency of a propulsion system and, therefore, the autonomy of an electrically powered river vessel. The methodology starts with the analysis of the physical variables that define the performance of the propulsion unit components, and establish an optimality problem and an exhaustive search model that considers all possible values of the key design parameters. A case study is presented for the design of an electrically powered river boat, for the transport of people, within the framework of the ENERGETICA 2030 project. This methodology enabled the choice of the PS’s components, while optimizing the energy consumption.
ABC design method: implementing adoption of innovation criteria through design heuristics for social design driven innovation projects
(Universidad EAFIT, 2018) Restrepo Giraldo, Jorge Andrés; Velásquez Montoya, Marcela
This article explains the experiences of the implementation of a decision support method in product/service design processes -- The research focuses on the utilization of a heuristic based method, as a tool to integrate adoption of innovation criteria to product design development phases -- All of this, with the objective to enhance the adoption of product/service solutions in social innovation driven projects and support conceptual exploration, providing more detailed information about the relationship between context, user, and product in early stages of the process -- Finally, this article is centered on an exploratory validation of the method by the development of two design cases to evaluate the assistance in a conducted design process
Acercando el Branding y la UX : una herramienta para la selección de métodos
(Universidad EAFIT, 2023) Gómez Rodríguez, Natalia; Maya Castaño, Jorge Hernán
ADAM : Método Ágil para Adopción de estrategias de DevOps
(Universidad EAFIT, 2023) Soto Velásquez, Jairo Alberto; Mazo Peña, Raúl
This research paper focuses on the concept of DevOps. DevOps is the acronym Development and Operations English and consists of a set of Practices to improve automation and monitoring at all steps of the Software construction, from integration, testing and deployment, to Configuration and management of the infrastructure required for the software works properly. Good practices are implemented in many industrial development projects of DevOps without leveraging engineering methods, which leads to implement practices that are unnecessary for the project, or fail to implement other practices that They improve the different stages of this. This paper presents the adoption method of DevOps called Agile DevOps Adoption Methodology (ADAM). The method consists of in a series of activities that are implemented on a cyclical basis, starting with the identification of the current state of DevOps adoption, following the creation of the backlog of good DevOps practices, following the definition of the objectives of service level, service level indicators, and finally practices of Monitoring and observability to measure the effectiveness of the proposed method. This method of We evaluate adoption in the case of a web application for the design of products called VariaMos. The results obtained allowed us to conclude on the speed and level of automation of ADAM adoption process management. In the evaluation, we found that using ADAM deployment times and lead time (lead time) decreased by more than 500%, compared to a Deploy without any method and executed manually. In addition, the use of ADAM does not affected the quality of the product with which the method was evaluated; which has allowed a Greater product evolution and improved confidence on the part of end users. In addition, maintenance costs are reduced by 50%. In the results obtained we also found that the time to DevOps adoption is much longer at the start of the project, but as the practices are adopted, the time is reduced. These Results constitute a first empirical evidence of the potential of the method ADAM proposed in this paper on improving the adoption of DevOps in the construction of Web applications.
Adaptación de la metodología TPM en empresas pequeñas y medianas (Pymes) del subsector panificador
(Universidad EAFIT, 2016) Trujillo Hernández, Luis Eduardo; Villegas López, Gustavo Adolfo
Adaptaciones de workflows para administración de seguridad mediante MDD y aspectos
(Universidad EAFIT, 2011-06) Giraldo Velásquez, Fáber Danilo; Anaya de Páez, Raquel
This document present a proposal for addressing the problem of workflows adaptation, through the inclusion of security properties at a business modeling level, controlling its impact on the business processes that are intervened, and the management of crosscutting concerns that are woven with each other. The proposal defines how concerns derived from security properties can be managed in a maintainable, reusable and extensible way at model level, according to the context, variations of rules and requirements of business processes, and security standars formulated by distributed services enviroments.
Adecuación de una metodología para incorporar movilidad empresarial a través del mejoramiento de los procesos de negocio
(Universidad EAFIT, 2016) Cardona López, Diana Cristina; Cardona Ríos, Sonia
AdLibitum: A Non-Traditional Music Notation Software For Web Browsers
(Universidad EAFIT, 2021) Arango Muñoz, Sebastian; Lalinde Pulido, Juan Guillermo
Adopción de mejores prácticas en la prestación de servicios de infraestructura de TI: de la teoría a la práctica
(Universidad EAFIT, 2014) Pineda Jiménez, Gloria; Rincón Bermúdez, Rafael David
Las organizaciones viven en un entorno de constante cambio, que tiene ciclos cada vez más rápidos -- Sin embargo, la tecnología no ha cambiado dentro de las organizaciones, al mismo ritmo que los cambios de las organizaciones -- Las pequeñas y medianas empresas tienen tecnología obsoleta; por lo que las inversiones en tecnología tienden a ser más grande y más costoso en el tiempo si no se hacen de manera planeada -- Esto crea una situación más compleja para vender una inversión en TI a nivel gerencial -- Para acceder en la actualidad al presupuesto de TI, con el fin de invertir en la infraestructura de TI, es cada vez más compleja -- Hay una serie de políticas de control de costos que forman una barrera para la Gestión de Servicios de TI de acuerdo a los planes y operaciones de TI, por lo tanto, se requiere recurrir a mejores prácticas al momento de sustentar estas inversiones
Advantages of Learning Factories for Production Planning based on shop floor simulation : A step towards smart factories in Industry 4.0
(Universidad EAFIT, 2023) Montoya Velásquez, Andrés Felipe; Guarín Grisales, Álvaro de Jesús; Mora Orozco, Julián; Guarín Grisales, Álvaro de Jesús
Afectación de la TIR por materialización de riesgos en proyectos de infraestructura vial
(Universidad EAFIT, 2015) Caro Londoño, Diego León; Isaza Cuervo, Felipe
El presente trabajo de grado, tuvo como propósito identificar los riesgos presentes en la construcción de un proyecto de infraestructura vial y analizar cuál sería su impacto en la Tasa Interna de Retorno TIR, en caso de que estos se materialicen -- Para dar cumplimiento a estos objetivos se realizó el estudio de varios proyectos de infraestructura vial apoyado en visitas aprovechando las nuevas concesiones viales que surgen en el País como es el caso de las 4G o cuarta generación de concesiones viales, al igual que se utilizaron modelos de simulación, para representar los escenarios en los cuales los riesgos se puede presentar y afectar la inversión realizada, afectando los ingresos esperados a futuro
AgileFM: modelo de desarrollo ágil formal basado en la ISO/IEC 29110 para las micro, pequeñas y medianas empresas
(Universidad EAFIT, 2017) Yépes González, Juan David; Pardo Calvache, César Jesús
Actualmente, la gestión de proyectos de desarrollo de software en las micro, pequeñas y medianas empresas está atravesando un proceso de cambio gracias a la introducción de nuevos enfoques y modelos ágiles que se integran a los procesos existentes, permitiendo mejorar los tiempos, calidad, productividad y costos asociados -- Sin embargo, la falta de comprensión y de una solución que soporte la integración adecuada con los procesos existentes de una organización, trae consigo una serie de obstáculos que entorpecen su exitosa implementación -- Con el objetivo de ayudar a soportar el trabajo en la implementación de la norma ISO/IEC 29110 desde un enfoque aplicable a las micro, pequeñas y medianas empresas, se llevó a cabo la definición de un modelo de desarrollo ágil basado tanto en las prácticas definidas en la norma así como también en los principios del manifiesto ágil, en propuestas ágiles como eXtreme Programming, SCRUM y algunas técnicas empleadas actualmente en el desarrollo de software, por ejemplo: captura de requisitos, definición y documentación de arquitecturas de software, automatización de pruebas, entre otros -- Esta tesis también muestra un estado del arte de los trabajos relacionados, el cual fue llevado a cabo a través de una revisión sistemática de la literatura, y que tuvo por objetivo conocer lo que se había realizado y logrado en micro, pequeñas y medianas empresas respecto a las metodologías ágiles principalmente y otros modelos desde el punto de vista de: tendencias, propuestas, experiencias, factores de éxito, entre otros -- El modelo propuesto ha sido aplicado y validado a través de un estudio de caso realizado en la compañía HMV Ingenieros Ltda
Aisladores de triple péndulo de fricción
(Universidad EAFIT, 2023) Quintero Manzano, Andrea Camila; Jaramillo Fernández, Juan Diego
Ajuste ecuación de predicción Witczak modelo NCHRP 1-37A del módulo dinámico (|E*|) de mezclas asfálticas
(Universidad EAFIT, 2021) Lara Ruiz, José Joaquín; Vidal Valencia, Julián
The global trend is to develop empirical-mechanistic (M-E) design methods, due to the shortcomings of empirical methods, such as AASHTO -93. In this work, a local adjustment methodology is proposed to the Witczak equation NCHRP 1-37A of the new AASHTO Guide. Likewise, a non-sigmoidal equation is presented that considers the correlation of the individual variables with the dynamic module |E *| by means of the Spearman coefficient. Nine (9) different hot asphalt mixtures were analyzed, the results of the dynamic laboratory module were compared with those obtained with the Witczak prediction formula in the new AASHTO 2004 Guide for the Mechanical-Empirical Design of Pavements MEPDG. Based on the statistical analysis, local adjustments were proposed to the coefficients of the sigmoidal equation NCHRP 1-37A; Finally, by multivariate non-linear correlation analysis methods, an alternative model was proposed to estimate the value of the dynamic module E *, from the volumetric aspects of the asphalt mix and the viscosity of the asphalt cement. The study concluded that: (a) better values of the correlation coefficient of the modified equation are obtained with respect to the original equation of Witczak 1-37A and (b), the non-sigmoidal equations can be simple and produce results similar to the sigmoidal with equal or greater statistical reliability.
Algoritmo de búsqueda de entorno variable para minimizar el makespan en un sistema flow shop con máquinas de procesamiento por lotes
(Universidad EAFIT, 2020) Palacio Henao, Roberto Carlos; Vélez Gallego, Mario César

Examinar

Examinando Maestría en Ingeniería (tesis) por Título

Resultados por página

Opciones de ordenación