Ingeniería Civil y Mecánica

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Subject: search.filters.subject.INGENIERÍA INVERSA

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    Diseño y construcción del prototipo de un dispositivo mecánico generador de flujo con presión positiva CPAP como alternativa en el tratamiento de pacientes con covid 19 en el contexto ecuatoriano
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2021-09) Molina Cabrera, Katherine Victoria; Sánchez León, Christian Vicente; Arroba Arroba, César Hernán
    The disease caused by COVID-19 has caused an impact worldwide, changing the daily routine to a completely different lifestyle and requiring a rapid medical response, for this reason, through the research project belonging to the DIDE-UTA called " SAMAY UTA - UCL CPAP” have adapted and innovated, through reverse engineering, the construction of a non-invasive ventilatory support device. For the reverse engineering process, we started with a CAD replica of the original model developed by the University College of London called "UCL VENTURA" that served as an initial pattern to carry out an analysis that includes the analysis of its operation; Then it was determined which components are in order to identify those that must undergo major changes, both dimensional and material. Once these elements had been identified (oxygen inlet and support) by means of the software design analysis, they proceeded with their resizing and calculations of the necessary tightening moment to place the valves and flow inlet and outlet elements. Finally, by means of CAM machining, the prototype was manufactured and through functional tests a more economical, small and easy-to-handle device was obtained, whose oxygen pressure at the inlet is four bars and at its outlet it delivers a positive pressure of up to 20 mmH2O that enters the airways through an oronasal mask, this prototype has similar characteristics to the original device but adapted to the Ecuadorian context
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    Construcción del componente Wing Tip - Fairing Assy aplicando técnicas de ingeniería inversa y utilizando materiales alternativos para la flota de aeronaves de las Fuerzas Armadas
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2021-04) Palacios Palacios, Hugo Wilfrido; Arroba Arroba, César Hernán
    For the process reverse engineering of the component began with a fiberglass replica which serves as a matrix for the initial pattern. It is taking as a model and making dimensional corrections concerning the original model. However, a replica model was obtained which was used to manufacture the final mold. On the other hand, to create a CAD model of the original part, a 3D scan and digitization were applied to later perform a treatment to the point cloud and obtain a surface of the model. The materials proposed for the construction of the component are; fiberglass, Kevlar fiber, carbon fiber, and copper mesh, with an Aeropoxy resin matrix. The process used to manufacture the component was using a vacuum bag, since it allows to achieve good lamination properties. With the Ansys Research software, component tests were carried out simulating a cruise flight with the proposed material. With which it was possible to establish deformation and stress values and through a failure criterion for composite materials to determine the inverse reverse factor and a safety factor. It can help you evaluate if the material fails or not. The results obtained from the simulation determined that the greatest stresses are concentrated in the area of the component holes, especially in the soffit and on the leading edge. The material proposed for the construction of the component reaches the established requirements.