Diseño, construcción y pruebas de un medio de transporte para incentivar la movilidad activa impulsada mecánicamente o por un motor de combustión interna

Abstract

The objective of this work was to develop the design and construction of a means of transport to encourage active mobility driven mechanically or by an internal combustion engine. Through an investigation and together with the QFD methodology, the customer experience requirements were collected in order to establish the parameters for the different designs. The most important points to consider were mobility, low cost, functionality and security, with these principles three main alternatives were made, with the use of the morphological matrix and the corrected ordinal method of weighted criteria, the best option was chosen. Next, the prototype was designed, which was divided into two parts, the first is related to the selection of elements for its control and the second part to the design of the structure with the intervention of CAD software. Subsequently, the FEM analysis was carried out considering ASTM A36 steel as the material. Once the support of the prototype was secured, the construction proceeded, through the use of the tube bender and with TIG and SMAW welding, the structure of the same was correctly assembled to finally couple the electrical accessories of the prototype. For the control system, an 80 cubic centimeter motor, 1 12 V lead acid rechargeable battery, speedometer and their respective lights were selected, with the tests of their respective operation, speeds up to 50 km/h were reached with a duration of fuel of 2.35 h and a maximum distance of 30 km. It is concluded that the drive system was capable of climbing slopes up to 14% without any problem and overcoming roads in poor condition. It is recommended not to exceed speeds of 35 km/h in order to avoid possible overturning.