Ingeniería Mecánica
URI permanente para esta colecciónhttp://hdl.handle.net/11349/1908
Examinar
Envíos recientes
Ítem Análisis dimensional y de rugosidad en una operación de mecanizado en un aluminio astm 6061: evaluación de parámetros de corte y estrategias de mecanizado en mastercam(Universidad Distrital Francisco José de Caldas) Moreno Maldonado, Jhonatan Steven; Rojas Martínez, Nelson Daniel; Dueñas Rojas, Jonny Ricardo; Dueñas Rojas, Jonny Ricardo [0000-0002-2899-8306]The project aims to evaluate the influence of different machining strategies on the surface roughness and dimensional accuracy of parts made of ASTM 6061 aluminum, using CAM software for the selection of tool paths and keeping constant cutting parameters such as cutting speed, feed rate and depth of cut. For this purpose, experimental tests will be carried out on a CNC machining center, where the surface roughness and dimensional accuracy of the machined parts will be measured. The data obtained will be analyzed using statistical techniques, applying ANOVA to determine the influence of each machining strategy on the quality of the surface finish and dimensional accuracy. From these analyses, the optimal path that minimizes roughness and ensures compliance with the dimensions specified in the software will be identified. The results of the study will provide practical recommendations to optimize the machining processes, allowing to improve the quality of the final product, reduce manufacturing times and reduce production costs, with a methodology that can be replicated in different industrial environments.Ítem Diseño de un sistema de ensamble de un bastidor independiente para bus eléctrico(Universidad Distrital Francisco José de Caldas) Benítez Rodríguez, Andrés Felipe; Ramírez Benavides, Juan David; Alvarado Moreno, Alexander; Alvarado Moreno, Alexander [0009-0006-7087-1014]This document presents a system for the assembly of an electric bus frame, which allows its parameters to be adjusted or varied considering the specific needs of the frame design. In addition, it adapts to the production of frames with different sizes and shapes, which makes it versatile and adaptable to different projects. Considering that there is no adequate device or fastening system for the correct assembly of an electric bus frame (structure), which guarantees its quality and resistance, which contributes to the safety, stability of the vehicle, as well as integrating with different components such as suspension, batteries, motors, etc. The methodology implemented for the design of this device began with identifying and defining the technical and design requirements of the device, starting from the geometry of the modules that make up the frame, the size and shape, the location of the fastening points, giving way to the conceptualization of designs that allow the established requirements to be met. Finally, a detailed design was carried out using computer-aided design (CAD) software tools to generate 3D and 2D models. In addition, the appropriate materials were selected and simulation tests and finite element analysis were carried out to ensure that the device meets the established requirements for strength and durability. As a result, the plans for the mechanism and materials required for the development of the device were obtained, which is an innovative technological solution that speeds up and improves the assembly process of the frame for electric buses, allowing the production of more efficient and sustainable vehicles.Ítem Evaluación de la precisión y exactitud de dos escáneres láser de la Universidad Distrital mediante piezas geométricas regulares(Universidad Distrital Francisco José de Caldas) Hernández Reina, Camilo Andrey; Rodríguez Melo, Dayan Stephani; Forero Casallas, John AlejandroThe following research addresses the evaluation of two laser scanners located at the Technological Faculty of the Universidad Distrital, which will be estimated in terms of precision and accuracy from the measurement of regular geometric pieces. In order to evaluate which is the most convenient scanner for the measurement of each type of piece and to observe which will serve best for mechanical engineering applications within the university, it is proposed to carry out an experimental design based on three types of geometric pieces (cube, hemisphere, pyramid) that will be measured by each of the scanners. The data obtained will be analyzed using the response surface graphs provided in the experimental design, to evaluate the measurements made by each device. To achieve this objective, a rigorous methodology will be followed that includes the definition of specific evaluation criteria, as well as the requirements and limitations for the measurements. Statistical analysis techniques will be implemented to compare the results obtained by each scanner, evaluating its technical and functional viability. At the same time, a detailed plan of the experimental configuration will be developed, ensuring controlled test conditions to minimize external variables. Theoretical and practical aspects of metrology and data analysis will be addressed to ensure the accuracy and precision of the results. This involves the integration of advanced statistical analysis methods, such as the use of Design Expert software, which will allow the evaluation of the repeatability of measurements, identifying variations and possible systematic errors in the scanners. Finally, clear metrics for evaluating the performance of each laser scanner will be established, both in technical and economic terms. Data collection and analysis will be carried out on the precision and accuracy of the measurements, considering factors such as operation time and associated costs. These results will serve as a basis for the selection of the optimal scanner, as well as for future research and improvements in laser scanning technology within the university. The results of this study will not only provide valuable knowledge for the mechanical engineering industry, but will also offer practical guidance for the selection of laser scanning technologies, contributing to the optimization of measurement and quality control processes within academic environments.Ítem Análisis tecnoeconómico de un sistema Power-to-X (PtX) para la producción de amoníaco verde a partir de energía eólica costa afuera en Colombia(Universidad Distrital Francisco José de Caldas) Muñoz Estupiñán, Cristian Felipe; Guerra Cárdenas, Michael Adolfo; Romero Ariza, Carlos Andrés; Romero Ariza, Carlos Andrés [0000-0003-1254-6468]This study presents a techno-economic analysis of a Power-to-X (PtX) system for the production of green ammonia in Colombia, using offshore wind energy as the main source. This research arises from the need to advance toward a mandatory energy transition to meet the commitments of the Paris Agreement, in response to the continuous increase in global temperatures due to CO₂ emissions. Additionally, it aims to provide alternatives that eliminate the country's strong dependence on ammonia imports for fertilizer production, a situation that worsened with the onset of the conflict between Russia and Ukraine, which led to a sharp increase in import prices of this compound and directly affected the national economy by significantly raising fertilizer costs. The analysis focuses on three zones of the Colombian coast (eastern, central, and western), where the wind farm and the ammonia generation system share the same characteristics but differ in generation capacity and energy input for each zone. To develop the design of the wind farm and the ammonia generation system, an exhaustive investigation of the main technologies involved was conducted, considering factors such as technological maturity, market availability, economic impact, and efficiency, among others. The selection of technologies was based on a comprehensive analysis of research studies, projects, government reports, and operational catalogs. Once the technologies that make up the wind farm and the ammonia plant were established, a study of the wind potential of the three zones was carried out to determine the average amount of annual energy that could be generated in each one. Based on this data, mass and energy balances were developed to calculate the final ammonia production in each zone. Finally, with the system's investment and operational costs, energy input, ammonia production, and levelized cost of energy, the levelized cost of ammonia (LCOA) was estimated for each zone to determine which one offers the greatest economic viability.Ítem Propuesta de diseño para la actualización del sistema de bombeo de las torres 5 a 9 del conjunto residencial EBRO(Universidad Distrital Francisco José de Caldas) Ramirez Rojas, Brayan Sebastian; Gonzalez Oviedo, Johan Manuel; Alvarado Moreno, Alexander; Alvarado Moreno, Alexander [0009-0006-7087-1014]This document presents the calculations and design plans developed for the system of pump room 2, responsible for supplying water to residential towers 5 to 9 in the Ebro residential complex, located in the city of Bogotá. The main objective is to address the water, mechanical and electrical difficulties facing the current system. At the same time, we are looking to upgrade equipment to make it more reliable and economical to maintain. The project focuses on generating a complete proposal, including all relevant documentation, associated costs, possible variations and a preventive maintenance plan. To do this, we began by estimating water demands and working pressures with the help of aqueduct meters, in order to compare the data with the methods described in the Colombian plumbing code (ICONTEC, 2020). The detailed design required measurements of water consumption over a 15-day period to obtain values closer to the estimated reality. In addition, the operating pressure range was verified to be appropriate for water delivery points at the entrance of each apartment in the building. The final result includes three pumps, a control board with three start systems, a drive and the alternation was raised by a PLC controller. The water system was validated using EPANET software. The control system was verified with the help of the CADESIMU program. In addition to this, the assembly drawings of the subsystems that make up the equipment were made. In addition, the tables of prices for each component and the estimated labour costs for the project were generated. Finally, a proposal for a preventive maintenance plan is presented based on information gathered from experience and a history of failures.Ítem Elaboración de un plan de mantenimiento preventivo para la extrusora de láminas de la planta de Geosistemas de la empresa Pavco Wavin(Universidad Francisco José de Caldas) Vera Castellanos, Jahir Alejandro; Velasco Peña, Marco Antonio; Velasco Peña, [ 0000-0003-4436-9443 ]Sheets for welding and forming Geoceldas are used in the area of road construction; in Colombia there are few active companies that offer this type of product, in Pavco Wavin, more specifically at the Geosystems plant an exclusive line was installed that contributes to the development of the Geocelda. Therefore, there is a need to carry out a procedure that formalizes the productive management and administration in its main branches; this project will focus on using one of the methodologies of reliability-based maintenance management (RCM) and its tools, to generate a maintenance plan that can ensure a reduction of risks that may incur problems of costs, management, revenue, sustainability and even productivity; and also serve as a basis for starting a respective traceability of the events that pass to the asset. In connection with the above, an implementation plan for the application of the RCM will be agreed upon, together with the guide to Standard SAEJA1012. Start by making a diagnosis of the operation of the machine, then establish an operational context that explains what is the complete environment in which the line will work, description of it, stipulating product to be manufactured and sub-products if they have, working parameters for production such as temperatures, pressure values, line speeds , production time, number of units, OEE, OEU and others; then the functions of the asset and its functional failures are defined, to then carry out a study of of analysis AMFE (Analysis of failure mode and effect) and answer the 7 questions of the RCM. With the data obtained, a decision diagram will be established where actions to avoid and solve problems are dictated, all written in an instructive format or journal (preventive maintenance plan) that can be used by the plant maintainers and to provide a preventive solution that corrects each possible predicted case; and finally, the information will be digitized and the maintenance plan will be created and programmed in the SAP application, which is used by the company Pavco WavinÍtem Estudio y diseño de una compuerta hidráulica tipo guillotina de polipropileno recicladoCastiblanco Ramírez, William Andrés; Zubieta Mancera, José Manuel; Pastrán Beltrán, OswaldoThis project will propose the design of a guillotine-type hydraulic gate using recycled plastic (Polypropylene), focusing on analyzing its mechanical behavior. The initiative emphasizes its environmental commitment by using recycled materials, thus contributing to more sustainable practices. Subsequently, a finite element analysis will be conducted to present an optimal design for the hydraulic gate.Ítem Procedimiento de verificación metrológica para “la unidad de métodos de medición de temperatura y calibración HILTON “H981”Gómez Hernández, Oscar Iván; González Colmenares, MauricioMechanical engineering professionals are involved in a wide range of activities, as it is a field where diverse skills, abilities, and competencies are developed and strengthened. In this context, this project aims to address a critical issue in the academic and research environment of the Universidad Distrital Francisco José de Caldas: the lack of a metrological verification process for the Hilton H981 temperature measurement and calibration unit. This unit enables the measurement of temperature in various experimental and research applications within the thermal sciences laboratory of the technological faculty, ensuring the reliability and accuracy of thermometers and temperature sensors. However, the absence of a metrological verification method may lead to unreliable temperature measurements, which can negatively impact research, practices, and projects developed in the academic setting. Consequently, this project aims to structure and implement a metrological verification process for the Hilton H981 unit; in this context, within the studies related to metrological verification, the concept of repeatability, uncertainty, among others, can be considered. This process will include a review of existing measurement and verification protocols, as well as the identification and correction of potential deviations or errors in temperature measurements. A methodology will be employed that combines a review of the specialized literature on the calibration of temperature measurement instruments and the conduction of practical laboratory tests. Clear and reproducible procedures will be established to ensure the reliability of measurements made with the H981 Unit. Finally, it is expected to obtain a documented verification process for the H981 Unit that meets the necessary standards to provide a quality service. These achievements will benefit students and researchers who perform temperature measurements for their projects and experiments within the university.Ítem Evaluación del efecto de la adición de 3% de nitrógeno en una aleación de base hierro blanca en sus características de resistencia al desgaste y morfología microestructural para la fabricación de asientos de válvulas(Universidad Distrital Francisco José de Caldas) Carvajal Quintero, Andrés Felipe; Carvajal Bravo, Yohan Andrés; Muñoz Bello, Nicolás GabrielThe present proposal addresses the challenges faced by valve seats in high-performance engines, particularly in terms of wear resistance, thermal stability, and machinability. Conventional alloys currently available fail to fully meet these requirements, affecting the performance and durability of the engine. For this reason, the project's objectives include evaluating the effect of adding 3% nitrogen to a white iron-based alloy on its wear resistance, metallographic, and microstructural characteristics. The project methodology involves several key stages. First, a manufacturing process for the materials will be conducted, where the loads for casting will be adjusted and balanced, considering the chemical compositions required to achieve the desired properties. Appropriate casting techniques will be used, along with the preparation of molds specifically designed for this purpose. Subsequently, the microstructural characterization of the manufactured materials will be carried out, using both conventional optical microscopy and scanning electron microscopy. A detailed analysis of the internal structure of the materials before and after thermal and mechanical treatments will be performed, aiming to understand how these processes affect their properties. Finally, mechanical tests will be conducted to evaluate the wear resistance and hardness of the materials. This will include hardness tests using a durometer, as well as wear tests to simulate the real conditions to which the materials will be exposed in engines. A thorough analysis of the results obtained from the mechanical tests will be conducted, allowing the determination of the suitability of the materials for application in valve seats.Ítem Evaluación de la tasa de corrosión en tuberías de intercambiadores de calor ASTM A 106 Grado B con protección catódica operados con agua de mar(Universidad Distrital Francisco José de Caldas) Ochoa Varela, Diego Fernando; Cuesta Hinestroza, Yohiler Alexander; Alvarado Moreno, Alexander; Alvarado Moreno, Alexander [0009-0006-7087-1014]The project focuses on evaluating the corrosion rate in heat exchanger pipes that use seawater to cool oil. These pipes, manufactured according to the ASTM A106 GRADE B standard and with a diameter of 2 inches, are installed in a plant within the water treatment and cooling systems area. The heat exchangers operate at a pressure of 66 psi and a service temperature ranging from 25 to 135 degrees Celsius, using unprocessed seawater as the cooling medium. It has been observed that the heat exchangers experience periodic changes due to corrosion in the tube bundle, as well as the presence of pitting in the tube bend area. In response to this issue, a cathodic protection methodology will be evaluated using a selection matrix (Valencia, 2021). To achieve this objective, periodic thickness measurements will be conducted on test specimens to assess the corrosion rate in two specimens, one with and one without cathodic protection. The results of this research could have significant implications for the selection of materials and corrosion protection methods in marine environments, thus contributing to the efficient operation and extended service life of the heat exchangers in the plant.Ítem Diseño e implementación de un plan de mantenimiento autónomo para la empresa Wilplas S.A.SSánchez Guerrero, Diego Alexander; Calentura Restrepo, Jefferson Andrey; González Colmenares, MauricioDesign and Implementation of an Autonomous Maintenance Plan for Wilplas SAS This project aims to improve the operational efficiency of Wilplas SAS, a Colombian company dedicated to the processing of recycled plastic materials. Due to the lack of an adequate maintenance system, the company faced frequent failures in its equipment, which generated downtime and economic losses. To address these problems, an autonomous maintenance plan was designed focused on three key production equipment: mills, washers and dryers. The plan includes several phases: planning, equipment characterization, maintenance procedure design and training for operating personnel. A color-coded card system (red, blue and green) was created to manage interventions on the equipment and ensure its efficient preventive and corrective maintenance. In addition, clear instructions were developed for the safe operation of the equipment, and specific training in industrial safety and maintenance was implemented. The results obtained after the implementation of the plan have been positive, with a notable reduction in downtime and greater operational safety. Thanks to this approach, Wilplas SAS has optimized the use of its equipment, improved the quality of its products and reduced its corrective maintenance costs. This project not only strengthens the company's competitiveness in the recycling sector, but also promotes a culture of prevention and responsibility among operators, ensuring a more efficient and safer work environment.Ítem Creación e implementación de un gemelo digital para la estación de paletizado en la celda de manufactura flexible HAS-200(Universidad Distrital Francisco José de Caldas) Mesa Rivera, Hugo Alberto; Fuquené Fula, Álvaro; Forero Casallas, John AlejandroThe manufacturing industry is constantly evolving and striving to optimize its processes and increase efficiency. In this context, digital twins become an effective tool for simulating and analyzing complex systems. This project develops and deploys a digital replica of the palletizing station in the HAS-200 cell, with the aim of improving its operation and performance. The current palletizing station presents a series of challenges that limit its effectiveness, such as the lack of a digital model to simulate its work in different scenarios, the difficulty in identifying and analyzing bottlenecks in the palletizing process, and the lack of a better work strategy. To address these challenges, the project used several references, including research on digital twins in the manufacturing industry, 3D modeling of palletizing stations, and simulation of palletizing systems. The main objectives of the project were achieved with the development of the digital twin of the HAS-200 palletizing station. This allowed virtual simulations to be carried out, analyzing its behavior, in order to propose an improved operational strategy, while the development process was documented. The project methodology was based on the action-research approach, where scientific research is combined with empirical activities to solve specific problems. This was carried out through: data collection, 3D modeling, virtual simulation, results analysis, proposal of a possible operational strategy, and documentation. Throughout the project, the following results were obtained: a functional digital twin of the HAS-200 palletizing station, a better understanding of the station's behavior and the identification of bottlenecks, to thus arrive at a possible improved operational strategy, and a final report detailing the methodology used, along with the results obtained and the lessons learned during the project. The development of this digital twin improves the efficiency and performance of the palletizing station, reduces potential costs, increases productivity, and improves resource utilization. Additionally, the project will contribute to the advancement of knowledge in the area of digital twins, for probable future research and its application in the manufacturing industry.Ítem Resistencia al desgaste de un acero A36 con dos recubrimientos(Universidad Distrital Francisco José de Caldas) Dimate Cubillos, Luis Felipe; Moreno Álvarez, Johan Ricardo; Dueñas Rojas, Jonny Ricardo; Dueñas Rojas, Jonny Ricardo [0000-0002-2899-8306]Currently, there are numerous materials used in various fields of industry, and each one is selected according to the specific needs of the required application. For this reason, the following thesis aims to compare two coatings applied by electric welding (SMAW) on an A-36 structural steel, used as a base material. The purpose is to confirm the mechanical characteristics that ensure better performance in terms of durability, wear resistance, ductility and other mechanical properties compared to an uncoated material commonly used in the mining and agricultural industries. This analysis will be carried out by measurements through metallography and microstructure analysis tests and trials, which will allow the determination of hardness, coating deposition, microstructure and other characteristics such as roughness after wear testing. In addition, the amount of material shed shall be measured to verify the capabilities of the material by simulating working conditions in accordance with the standard abrasive wear measurement method specified in ASTM G65. These tests shall be carried out in a laboratory, avoiding critical environments with high corrosive levels, extreme temperature variations and other adverse conditions.Ítem Creación de procedimiento para la calibración de espectrofotómetros UV/VIS(Universidad Distrital Francisco José de Caldas) Páez Parra, Juan Sebastián; Velásquez Jaramillo, Michell Andrés; Forero Casallas, John AlejandroThis degree project developed a calibration procedure for UV/VIS spectrophotometers in accordance with ISO/IEC 17025:2017, guaranteeing uniformity and reliability in measurements. Through a careful selection and application of normative documents and international technical guides, such as the INM and CENAM calibration guide for spectrophotometers, a solid foundation was established that allows compliance with the technical criteria required to carry out an adequate calibration process that will evaluate the traceability and uncertainty of the results obtained. The practical application of the procedure in the EUROMETRIC COLOMBIA LTDA spectrophotometer allowed the issuance of a non-accredited calibration certificate, where the calculation of the measurement and calibration capacity (CMC) demonstrates the effectiveness and potential of the laboratory for future accreditation. This experience strengthens the ability to manage internal calibration processes and reinforces technical skills, contributing to the development of skills in measurement and metrological assurance.Ítem Desarrollo y homologación de tapa y manija plástica para los procesos de embotellado, almacenamiento y distribución de productos presurizados y no presurizados con nitrógeno en bidones PET de 6 litros(Universidad Distrital Francisco José de Caldas) Martínez Motavita, Anamaria; Zapata Sierra, Jeferson Stiven; González Colmenares, MauricioThis document presents the development and approval of a plastic lid and handle for 6-liter PET drums, used in bottling, storage and distribution processes of pressurized and non-pressurized nitrogen products. A detailed analysis of materials, structural design and resistance tests were carried out to ensure the functionality, safety and efficiency of the product. Through the implementation of industrial regulations and validation tests, the manufacturing process and the sustainability of the components were optimized, aligning with the standards of the plastic packaging sector in Latin America.Ítem Diseño e implementacion de un plan de mantenimiento preventio y correctivo para la empresa INDUSTRIAS JIRO S.A.Cañón Rodríguez, Julián Camilo; Arciniegas Barón, William Alejandro; Gonzalez Colmenares , MauricioThe monograph titled 'Design and Implementation of a Preventive and Corrective Maintenance Plan for INDUSTRIAS JIRO S.A.S.' proposes a strategy to enhance maintenance management within the company. The primary objective is to reduce equipment and machinery failures, leading to increased asset availability, improved product quality, and decreased maintenance costs. To develop the maintenance plan, a criticality analysis of assets will be conducted to identify equipment that is most crucial to the company's operations. Based on this analysis, preventive and corrective maintenance activities will be established for each asset. The preventive maintenance plan encompasses inspections, lubrication, adjustments, and component replacements, performed periodically according to the manufacturer's recommendations. Conversely, the corrective maintenance plan includes repairs and replacements of defective components, executed upon equipment failures. With the implementation of the maintenance plan, results are anticipated in reducing equipment and machinery failures at INDUSTRIAS JIRO S.A.S. This will translate into increased asset availability, improved product quality, production times, and reduced maintenance costs.Ítem Diseño de un plan de mantenimiento basado en confiabilidad para la montaña Drakko del parque Salitre Mágico(Universidad Distrital Francisco José de Caldas) Llanos Salguero , Brayan; Barrera Manrique, Juan Camilo; Velasco Peña, Marco Antonio; Velasco Peña; Marco Antonio [0000-0003-4436-9443]The following project aims to strengthen the maintenance routines carried out in the first and highest electromagnetically propelled roller coaster in Latin America. It is pertinent to carry out such a project, considering that it is vital that the park has a perfectly functioning attraction with 100% availability and reliability, selling the primary service offered by the company, which is safety. The project includes research into the behavior of a mechanical attraction that the company intends to design and, in the future, implement a maintenance plan based on reliability and a lubrication routine based on a tribological chart to mitigate and predict future failures that may cause unfortunate events in a high-impact attraction. During the research, the aim is to understand and expose the different systems of the attraction and their criticality during operation. The aim is to obtain the entire plan to be delivered to the company according to the ISO 14224 standard that allows the components to be classified and evaluated, from their taxonomy to identify their primary parts and those that are maintainable and their frequency of intervention.Ítem Diseño y optimización de un tornillo clasificador de minerales para la empresa FRC ingeniería(Universidad Distrital Francisco José de Caldas) Beltrán Ortiz, Carlos Alejandro; Alvarado Moreno, Alexander; Alvarado Moreno, Alexander [0009-0006-7087-1014]This internship report details the design and optimization of a mineral classifier screw, developed during an internship at FRC Ingeniería, a company with over 20 years of experience in the manufacturing and maintenance of machinery for the mining industry. The project arose from the identification of two key issues in existing equipment: the limited capacity of the classification tank and the premature wear of the submerged bushing, which led to high maintenance costs and extended downtime. To address these deficiencies, technical research, engineering calculations, and 3D modeling in Autodesk Inventor were conducted, resulting in a more efficient and durable classifier screw. The new design incorporates an optimized submerged bushing with an improved sealing system and clean water injection to reduce wear, as well as an enlarged classification tank to enhance material sorting. Additionally, manufacturing plans and technical documentation were generated for implementation. As a result, the new equipment offers greater operational efficiency, reduced maintenance costs, and increased service life, aligning with FRC Ingeniería’s quality standards. It is recommended to conduct field tests and assess the integration of additional technologies for future optimization.Ítem Diseño y construcción de un prototipo del sistema de distribución de flujo para la turbina Kaplan didáctica de un banco de pruebas(Universidad Distrital Francisco José de Caldas) Arango Castillo, Johan Camilo; Vargas Palacios, Mario Alejandro; Muñoz Bello, Nicolás GabrielThe growing world demand for electric power has led to the need to develop multiple technologies to meet energy requirements in multiple conditions and contexts. In Colombia, a country with large water sources, it is essential to implement turbines to take advantage of the energy coming from waterfalls. In this context, Kaplan turbines become one of the most versatile and efficient alternatives in different conditions of flow, pressure and energy demand because their blades are adjustable, which allows them to operate in conditions of low head and variable flow. The mechanism that makes it possible to regulate the guide vanes corresponds to the flow distributor and its operation provides the possibility of modifying the flow rate, pressure, fluid inlet angle to the runner and, consequently, the efficiency of the turbine. This paper deals with the redesign of the flow distributor of a didactic Kaplan turbine located at the Universidad Escuela Colombiana de Ingeniería Julio Garavito, which presents a reduced opening range of the guide vanes and problems in their synchronization. A prototype developed by means of polymer additive manufacturing technologies, specifically PLA (poly lactic acid) 3D printing, is proposed. The designed device has a greater amplitude of the guide vanes and optimizes the cost of materials and manufacturing processes according to the hydraulic and structural requirements of the turbine, where the feasibility of implementing the development of parts in turbo machines using this process will be evaluated. A bibliographic analysis of different researches, models and prototypes of hydraulic turbines manufactured by means of additive manufacturing technologies is developed within the document. In relation to the development of the device, the analysis of the properties of the 3D printer used and the parameters configured in the development of the parts, which modifies the mechanical and physical properties of the material, are discussed. Taking into account the above, tensile, bending and expansion tests of the material are implemented to specimens developed under the same conditions of the parts to be manufactured, in order to evaluate the feasibility of the designed prototype and apply the necessary parameters and adjustments to meet the initial geometric conditions of the rest of the turbine. Additionally, the behavior and efficiency of the turbine in question is evaluated for five opening angles of the guide vanes of the flow distributor, using analytical methods and the simulation of the turbine in ANSYS software. Finally, the manufacturing and validation of the prototype mechanism designed in relation to the opening and closing of the guide vanes in a range equal to or greater than 45° is carried out.Ítem Diseño de bastidor para vehículo eléctrico de última milla(Universidad Distrital Francisco José de Caldas) Duarte Cantor, Kevin Sebastián; Muñoz Serrato, Wilson Steven; Pastrán Beltrán , OswaldoThe objective of this work is to design a chassis for a last-mile electric vehicle. This project aims to develop a product that meets the national regulatory requirements established for this type of vehicle within this segment while also complying with the operational requirements and conditions imposed by the topographical characteristics. The design will be subjected to finite element analysis to simulate operational phases and verify the robustness of the product, ensuring it meets quality and safety standards for users. Likewise, the selection of standardized components will be based on the design requirements. As a final stage, the design's energy consumption and range will be evaluated to establish a basis for comparison with the options currently available in the national market.