Analysis of Urban TITEN EV-2 Car Chassis Design on Dynamic Loading When Brakes

In the race conditions of the Energy Saving Car Contest, urban concept vehicles must comply with the special rules that have been set, namely 'stop & go driving'. Therefore, the designed car must have the toughness to accelerate and decelerate safely. Chassis is a fundamental part of the vehicle that functions to support the overall load that works on the car, keeps the car's condition rigid, does not experience excessive deformation and is safe when used. For that chassis design planning must be considered. The selection of a strong but still lightweight material was carried out, using 6061 aluminum material. In this research, an analysis will be carried out on the design of the TITEN EV-2 car chassis. TITEN itself is the name of the Jember University research team that focuses on developing energy-efficient electric vehicles. In this study the analysis is focused on the chassis that experiences dynamic loading when braking with variations in the shape of the chassis profile, namely profiles in the shape of a square and hollow rectangle and the braking distance is varied. from 20m, 15m, 10m. By using the Finite Element Method (FEM), the strength analysis of the chassis structure design can be determined by looking at the maximum stress and total deformation acting on the chassis. From the simulation results, the rectangular hollow chassis profile has a mass of 7.6 kg which is lighter than the square hollow chassis which has a mass of 9.4 kg. Rectangular hollow chassis has a maximum stress that is superior to square hollow chassis at loading distances of 20 m and 15 m, but at a braking distance of 10 m, square hollow chassis is superior in terms of total deformation and maximum stress.