Research on Vehicle High Speed Motion Stability and Simulation Based on Computer Aided Design

In this paper, through the research on high speed moving vehicle aerodynamic stability by using the method of computer aided design, the result of the research has showed that there is a close relationship between the automobile body surface pressure distribution and automobile shape, which can have a direct impact on the vehicle's aerodynamic performance. In front of the hood and the front cover, it is the high-pressure area, the pressure is higher than the pressure of the end of the vehicle, which is the main reason for the formation of aerodynamic resistance, moreover, it has made detailed analysis on the impact of the automobile air pressure distribution on the aerodynamic characteristics.