In the present investigation, the first Shell Eco-marathon chassis developed at the University of Engineering and Technology was statically and dynamically analyzed. The research methodology used was that proposed by S. Hernández, where the following phases were presented: Elaboration of hypotheses and definition of variables, development of the investigation design, definition and selection of the sample, data collection and analysis. As final result, it was expected to obtain a properly analyzed chassis under four static and dynamic tests. The chassis from which it was started has a defined geometry, where the dimensions of the cross sections of the tubular profiles were changed to determine the static and dynamic behavior of each of the iterations. In the static analyzes, 39 cross sections of 6061-T6 aluminum profiles were analyzed against braking forces, cornering and roll cage strength testing. In this analysis, it was sought that no tubular component exceeds the allowable stress of 95 MPa. Regarding the dynamic analyzes, the profiles that satisfactorily meet the selection criteria mentioned above will be analyzed. These profiles were analyzed under frontal impact tests and modal analysis. The frontal impact had two selection criteria, first that the pilot's feet are not trapped by the deformation caused by the impact and second that the pilot's head does not experience a deceleration greater than 80g. The modal analysis sought to verify that the vibration modes of the structure do not resonate with those of the motor. Having met the above criteria, the cross section with the lowest weight was selected. The selected profile assured to be safe for the pilot and at the same time light weight. Complying with all the requirements given by the competition rules, as well as the driving conditions during the race.
Análisis estático y dinámico para un chasis shell eco-marathon
Carrión Luya, F. (Author). 2020
Student thesis: Tesis de Pregrado