چكيده به لاتين
Abstract
This thesis investigates side impacts with pillars, which represent one of the key challenges and safety concerns in automotive design, as well as their effect on the structure of small electric vehicle doors. To assess safety, numerical simulations were conducted using advanced crash modeling software, with a specific focus on side impact tests. The primary emphasis was placed on the design of the door structure and its energy-absorbing systems to mitigate impact-related injuries and protect the electric vehicle batteries. The research findings indicate that an optimized side structure design and the use of energy-absorbing materials, such as aluminum impact beams, can significantly reduce deformation of the battery housing and enhance occupant safety. In this study, side impact simulations were performed using LS-DYNA to analyze the behavior of the vehicle door structure. Furthermore, considering the importance of appropriate energy absorbers for vehicle doors, a balance was established between high energy absorption and weight reduction to improve battery safety during collisions. This research also analyzed results from standard safety tests such as FMVSS 214 and examined challenges and opportunities for improving the design of small electric vehicle doors. The findings of this study provide recommendations for enhancing door designs to increase resistance to side impacts and improve overall safety. Utilizing the Taguchi design of experiments method with an orthogonal array L8, sensitivity analysis and optimization of design variables including door panel thickness, cross-sectional profile shape, and structural profile thickness were conducted. Results indicated that an optimal door panel thickness of 4 mm, a square profile shape, and a structural thickness of 1.2 mm not only maintain suitable weight but also effectively absorb more energy during impacts, preventing force penetration into the occupant compartment
