大学生方程式赛车空气动力学套件的流场分析  

Flow field analysis on aerodynamics packages of a certain racing car in Formula Student China

作　　者：张强华[1] 李强[1] 丁一慧[1] 张可成[1] 

机构地区：[1]浙江科技学院机械与汽车工程学院,杭州310023

出　　处：《浙江科技学院学报》2016年第1期67-71,共5页Journal of Zhejiang University of Science and Technology

基　　金：浙江省公益性技术应用研究计划项目(2015C32075);浙江省自然科学基金项目(LY13E050023);浙江科技学院学科交叉预研专项项目(2013JC04Y)

摘　　要：针对大学生方程式赛车外形的设计要求及空气动力学套件的结构特点,采用ANSYS软件对赛车流场进行分析并优化了动力学套件结构。首先根据赛车整车外形及空气动力学套件各个部分,如前翼、侧翼及尾翼的设计参数建立CATIA数学模型,再利用ANSYS对其空气动力学套件各部分及整车进行流场分析,最后用分析结果来优化原设计参数,使赛车整体空气动力学性能达到较好的水平。通过不同车速仿真分析表明,车速在30m/s时,优化后的空气动力学套件能使整车的下压力由原来的40N提高到1 590N,而前轮气动阻力能减少约41.6%,表明赛车在高速行驶过程中具有更为良好的操控性能和空气动力学特性。Aiming at the structure characteristics of appearance and aerodynamics packages of racing car in Formula Student China,a method for analyzing carload flow field using ANSYS software and optimizing structure parameters of aerodynamics packages was put forward.Firstly,according to each part of aerodynamics packages of the racing car,the CATIA mathematical models were established based on design parameters,such as front wing,lateral wing,caudal wing.Secondly,flow field simulation analysis of the racing car was built by using ANSYS software after established models.Then each part of aerodynamics packages was analyzed to find out the relationship of all forces.Finally,previous design parameters were optimized based on calculation results of numerical modeling.The performance of aerodynamics packages was reached up to better level than before.Through different speed simulation,theresults showed that the down force of racing carload make up to 1 590 Ncompared to previous40 Nand the aerodynamics drag forces of front wheels decrease about 41.6% at the speed of30m/s using optimized packages,which indicates that the certain racing car has perfect handling performance and aerodynamic characteristic during high speed condition.

关 键 词：大学生方程式赛车 流场分析 空气动力学套件 优化设计 

分 类 号：U469.696.02[机械工程—车辆工程]