Maestría en Diseño Mecánico

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    Diseño estructural de una silla de ruedas de bipedestación con sistema de verticalización y la incidencia en su eficiencia energética
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Diseño Mecánico, 2018) Espín Guerrero, Víctor Rodrigo; San Antonio Serrano, Thalía Daniella
    The need to rehabilitate and return to a normal life for a person with disabilities has led technology to develop tools that help improve patient independence. The project is related to the design of a manual wheelchair that allows verticalization of the person thereby improving their participation in activities that cannot develop in a sitting position, as well as improvement in physiological aspects of their body. The design parameters were determined using several logically related methodologies such as the generalized description of a product, conceptual design application criteria involving the needs of the client with the KANO method and the deployment of quality control functions (QFD). The study of anthropometric measurements was a reference for dimensioning the elements of the final product. In addition energy efficiency was achieved thru selection of components with optimum capacities and power consumption. As a complement to the energy efficiency analysis, the energy expenditure of a person with a disability is involved, which results in a standing position metabolic energy consumption of 210 W/m2, compared to the value with which it was determined in the sitting position of 165 W/m2 of metabolic consumption for the development of the different activities. In conclusion the final design proposal of the prototype, whose modeling of the structure and the validation of the results generated was done with software based on the Finite element method for a static and dynamic analysis, verified that the maximum deformation results, maximum equivalent effort and minimum safety factors are kept within the parameters permissible for the model and selected materials. The project ended with the construction and testing of a prototype which, with the processes and labor employed, invest 55.33h, which has a low manufacturing cost compared to the costs of their peers.