Ingeniería Civil y Mecánica

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    Rediseño de prensa oleo hidráulica y sistema de control para conformado de tubo para la empresa metalmecánica Casimiros en la ciudad de Puyo
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2023-03) Ortiz Hidalgo, Néstor Anthony; Carrillo Rosero, Carlos Mauricio
    This technical project explains, in an orderly and systematic sequence, the redesign of an oil-hydraulic press for forming galvanized tubes 1 inch in diameter and 2 millimeters thick. The shaping of this material initially depends on the skill and strength of the worker; however, it seeks to improve the process by controlling the limit switch, in addition to eliminating the operation of force through the use of a hydraulic cylinder. In the present, the determination of parameters was carried out by establishing ranges: pressures, end-of-stroke adjustments and piston advance speed. Necessary elements and devices were calculated through bibliographic research, in addition to the calculation of: loads and dimensions. Consecutively, components were selected for the three systems: structural, oil-hydraulic and control; mechanisms which are based both on the established parameters and on the calculations made. The validity of the project was also determined through performance tests that provide an error of less than 1 percent and a forming time of 10 seconds per piece. At the end of the project, an oil-hydraulic press with a control system capable of performing 340 shapes per hour, with end-of-run control and drive by electric panel, was delivered to the ¨Casimiros¨ metalworking company.
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    Análisis de la resistencia mecánica de la punta de ala WING TIP-FAIRING ASSY luego de ser reparada con materiales alternativos
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2021-09) Montero Tobanda, Jonathan Wladimir; Arroba Arroba, Cesar Hernán
    This investigation began with an evaluation of damage by visual inspection of all Wing Tip Fairing Assy components. It was necessary to consider the analysis of the codes for the inspection and reparation of aircrafts. For this, visual inspection reports were issued detailing each of the indications detected on the aerodynamic surfaces. Besides, the materials used in the reparation process follow the laminate configuration of the original components; copper, carbon fiber, kevlar, and fiberglass mesh, as well as a matrix of epoxy resin from the AEROPOXY brand. Furthermore, for the foundation of the restoration process, we based on the recommendation given by the manufacturer’s maintenance manuals, specifically in the parameters of step roughing, and conformed to the vacuum of the repair patches. The study of mechanical resistance of the repaired components was achieved with the application of the reflection essay in three points according to the NTE INEN 2047 standard. In addition, it helped to establish the tensile strength values, elasticity modulus, and the percentage elongation of composite materials. The results obtained were evaluated and analyzed based on FAA airworthiness parameters and previous research, these being the references that validate the repair procedure on Wing Tip Fairing Assy composed of alternative materials. Then, the repair process defined by staggered patches in an oval and vacuum shaped configuration is an effective method in the restoration of flight surfaces.
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    Fabricación del mecanismo de conformado de la punta de un tubo hipodérmico usado en un dispositivo mecánico generador de flujo con presión positiva CPAP usado como alternativa en el tratamiento de pacientes con covid-19
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2021-09) Ramos Freire, Christopher Vicente; Morales Criollo, William Mauricio; Pérez Salinas, Cristian Fabian
    With the development of the mechanism system for shaping the tip of a hypodermic tube, it will allow the manufacture and adaptation of this fundamental internal element of the respirator, consequently it will help to reduce the time of elaboration and assembly of the same. The methodology of this technical project begins with an evaluation of the information provided by the Mercedes AMG company and the UCL. For the design of the deformation mechanism of hypodermic tubes, SolidWorks software was used, while ANSYS software was used for simulation, in which an analysis of the machine's infrastructure was carried out to determine that there is no overstress and that it may cause failures; likewise, an impact analysis was carried out in a specific contact region, between the tip and the hypodermic tube, based on a height of fall of an element (weight), in order to determine the deformation of the tube. Finally, the construction of the machine was executed. Functional tests were carried out in the laboratory of the Faculty of Civil and Mechanical Engineering, where results of 1.31 mm (average value) of deformation of the hypodermic tube were obtained, tests that were adapted with the simulations carried out, resulting in a correct operation of the mechanism.
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    Estudio del proceso de conformado en plantillas de calzado, en tol de 1 mm de espesor para optimizar tiempos de operación en la microempresa C&G Ingenio Industrial
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica., 2011) Aroca Farfán, David Israel; Correa Jácome, Juan Francisco
    Con el objetivo de lograr una mayor competitividad en el mercado y satisfacer las necesidades del cliente se realiza la automatización, así como también mejorar la situación económica de la microempresa y su prestigio. Logrando resultados mediante la observación del proceso de conformado, se obtuvo datos con los cuales se aprobó una mejor alternativa de implementación en el mecanismo, siempre buscando la favorable opción a realizarse, sin interferir con el normal trabajo. Para esto se utilizó un booster neumático, así como una electroválvula y un compresor esencial para la automatización, el cual se encuentra accionado por medio de un pulsador para su funcionamiento. Por lo tanto, la automatización ayuda a detectar con oportunidad, cualquier desviación significativa en el cumplimiento de las metas y objetivos establecidos; asi mismo, es importante porque promueve la eficiencia en las operaciones, ayuda a reducir los riesgos a los que pudiera estar expuesto el operario, aporta mayor confiabilidad operacional, proporcionando seguridad y cumplimiento efectivo de las leyes, normas y políticas.