关键词: 赛车空气动力学套件；全局优化；气动性能；优化策略

Abstract: The optimization of the formula student aerodynamics package has an important impact on the fuel economy and handling stability of the car. From a global perspective, a total of 10 design variables of front wing, rear wing and flank fin angle of attack are selected, and different experimental design methods, approximate model building methods and multi-objective optimization methods are compared laterally. Then, through lap speed simulation, the optimization strategy most suitable for airfoil angle of attack optimization is selected, and the vehicle is optimized based on this strategy. Compared with the aerodynamic performance of the whole vehicle before and after optimization, the aerodynamic negative lift of the final car increased by 19% and the drag increased by 2.03%, which better improved the aerodynamic performance of the car. The results show that this optimization strategy can provide some guidance for the selection of the angle of attack of the racing wing.

Key words: Racing aerodynamics package; Global optimization; Aerodynamic performance; Optimization strategy