Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
OPTIMIZATION OF THE GEAR RATIO OF A FORMULA SAE CAR THROUGH THE FIREFLY COLONY ALGORITHM
Submission Author:
Gustavo Henrique Nazareno Fernandes , MG
Co-Authors:
Lucas Melo Queiroz Barbosa, Gustavo Henrique Nazareno Fernandes, Pedro Henrique Pires França, Isabelle Dias, Marcus Galdino
Presenter: Lucas Melo Queiroz Barbosa
doi://10.26678/ABCM.COBEM2021.COB2021-1723
Abstract
Formula SAE is a competition that leads students to create and develop their own competition vehicles, being evaluated technical aspects with the justifications for the choice of design and construction, in addition to the dynamic performance of vehicles on the track. This work aims to optimize the gear ratio of the UFU Racing team car by using the integration of a vehicle performance prediction algorithm with the Firefly Colony Algorithm, which is based on meta-heuristics. Three different cases were performed in addition to the reference, changing parameters such as the final ratio and the escalation of the gears, in addition, four different stroke switching times were considered, the objective function was calculated with the weighted average of the lap time in the three tests in which the gait ratio has relevance, Plucked, Autocross and Enduro. Only changing the final relationship between the ratchet-chain-crown reduced the meantime by 0.59 % using it in all tests, and 0.95 % if the final relationship is different between the tests. In case there are changes in the escalation of the gears, the average gain becomes 1.57 % which makes great differences for the best teams.
Keywords
Formula SAE, Optimization, Gears transmission, Efficiency, Firefly Colony Algorithm
