Comparison of side collision analyzes of electric vehicle and conventional vehicle chassis

Abstract

Conventional vehicles use fossil fuels, which leads to the emission of CO, causing environmental harm. Due to the damage caused by this gas to the environment and human health, the interest in hybrid or electric cars that can use RES has increased. Parts like powertrains, which are found in conventional vehicles but not in electric ones, have caused design disparities in their respective chassis. This study aims to investigate the load distribution on the chassis of electric and conventional vehicles in the event of a side collision. After conducting a literature review and engineering calculations, a chassis was designed for both types of vehicles using the SOLIDWORKS program. The completed chassis was analyzed at a speed of 40 km/h, taking the average of the speed limits determined in the side impact test and polar impact test in the EXPLICIT module of the ANSYS WORK-BENCH program. Due to the load generated during the collision, a deformation of 150.72 mm occurred in the electric vehicle chassis and 403.78 mm in the conventional vehicle chassis. As a result of the deformations, stress of 1228.2 MPa occurred in the electric vehicle chassis base and 1000.2 MPa occurred in the conventional vehicle chassis base. These stresses exceeded the yield limit on the designed chassis bases, causing a permanent shape change in both vehicles, but no rupture occurred.