Browsing by Author "Reyes Pérez, Diego Fernando"

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    Diseño y selección del sistema de suspensión de un prototipo de auto eléctrico BIPLAZA UTA-CIM17
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica, 2018) Mejía Mayorga, Esteban David; Reyes Pérez, Diego Fernando; Analuiza Maiza, Oscar Iván
    For the realization of the technical project, effective alternatives were sought, to the need to obtain a suspension system for the prototype of two-seater electric car UTA-CIM 17, which meets the needs of the medium to circulate, where asphalted roads with speed breaks are presented and that they are at the forefront of the car market, in which, according to the weights applied to the vehicle, a McPherson type suspension is selected for front tires and a rigid type for rear tires. The displacement required by the suspension springs to provide safety, stability and comfort to the user was analyzed. Once the requirements were obtained, the actual behavior of the spring movement was compared and modified to achieve values close to those required. Analyzes were done in CAD software to verify the studies The specific parameters of mechanical elements were taken into account to the working conditions and the adaptability with the other systems that make up the car. Once finished with the design and construction of the suspension system, performance tests are performed, where the correct functioning of the system can be evidenced in critical conditions for the elements that make up the suspension system.
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    Optimización de las propiedades mecánicas a fractura para juntas soldadas a tope bajo proceso SMAW (AWS D1.1) utilizadas en la fabricación de estructuras metálicas en la compañía SEMADIJE LTDA
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Mecánica Mención Manufactura, 2021-06) Reyes Pérez, Diego Fernando; Paredes Salinas, Juan Gilberto
    The present development work is focused on the optimization of the mechanical properties to fracture for butt welded joints under SMAW process. For this purpose, a combination analysis of the most influential variables in the welding process was carried out and its mechanical properties were tested by tensile, crack propagation and impact tests. The base material used for this research was ASTM A572 grade 50 steel, with E-6010, E-6011 and E-7018 filler materials, using different percentages of the latter for each combination. Regarding the welded joints, the SMAW welding process was used, which complies with the requirements of the AWS D1.1 code, and which is widely used in the manufacture of metallic structures. From the aforementioned tests, evaluations were obtained, which allow to statistically analyze each one of them, which allows to obtain the optimum combination with respect to their resistance to fracture, both individually and globally. After the respective analyses, it can be seen that the combination that presents an improvement in the mechanical properties to fracture is the one that corresponds to the use of the E-7018 electrode with a type of X-shaped joint.