Abstract
As part of the car's parts, the car headlights provide a guarantee for the aesthetics of the car and the safety of night driving. The advantages and disadvantages of the mechanical performance design of automobile headlamps have a significant impact on the life of the headlamps and whether the vibration conditions will occur in all driving conditions. In this paper, the Changan 1.5T compact SUV CS75 headlamp is reverse modeled by hand-held 3D scanner and 3D modeling software CATIA, and the vibration of the headlights under the driving conditions is simulated by the finite element analysis software ANSYS. The modal analysis is carried out, and the results obtained are important for studying the dynamic performance of the headlamps and improving their structure and optimization.
Key Words：reverse engineering；3 D scanning；Vibration modal analysis；headlamp；
