【作者】 张国庆； 周复求； 张帅； 陈冀宁； 王津宏； 王小漫； 王达； 张宇琦； 单宇宸； 杨铭嘉； 王淼鑫；

【Author】 Zhang Guoqing;Zhou Fuqiu;Zhang Shuai;Chen Jining;Wang Jinhong;Wang Xiaoman;Wang Da;Zhang Yuqi;Shan Yuchen;Yang Mingjia;Wang Miaoxin;College of Automotive Engineering,Jilin University;China Society of Automotive Engineers;

【机构】 吉林大学汽车工程学院； 中国汽车工程学会；

【摘要】 对于方程式赛车,负升力水平、气动平衡以及敏感性是评价其空气动力学性能的三个主要方面,本文将主要探究如何利用一套与车轮跳动联动的、具有姿态自适应功能的空气动力学装置实现赛车气动性能的低姿态敏感度。最终本文利用曲柄摇杆机构成功实现车轮跳动与调节对象攻角的合理匹配,根据CFD以及动力学仿真的结果表明,姿态自适应的气动装置可以最大程度地保证赛车前、尾翼气动性能的稳定,保证了动态下的气动平衡,有效改善了赛车不同工况下的操纵稳定性,根据动力学仿真结果,单圈时间可缩短1.5%。更多还原

【Abstract】 For a formula car,the level of negative lift,aerodynamic balance and sensitivity are the three main aspects to evaluate its aerodynamic performance.This paper will mainly explore how to use a set of aerodynamic devices linked with wheel jumping and with attitude adaptive function.Low stance sensitivity for racing aerodynamic performance.Finally,the crank-rocker mechanism is used in this paper to successfully achieve a reasonable match between the wheel runout and the angle of attack of the adjustment object.According to the results of CFD and dynamic simulation,the aerodynamic device with adaptive attitude can ensure the stability of the aerodynamic performance of the front and rear of the car to the greatest extent.It ensures the aerodynamic balance under dynamic conditions and effectively improves the handling stability of the car under different working conditions.According to the dynamic simulation results,the lap time can be shortened by 1.5%.更多还原