FSAE赛车发动机进气系统结构参数优化  

Optimization of Structural Parameters for the Engine Intake System of FSAE Racing Car

作　　者：谭正平[1] 黄海波[1] 王永忠[1] 

机构地区：[1]西华大学汽车与交通学院,四川成都610039

出　　处：《西华大学学报（自然科学版）》2017年第1期82-87,共6页Journal of Xihua University:Natural Science Edition

基　　金：教育部汽车工程国际级实验教学示范中心项目(教高函[2013]10号);四川省实验教学示范中心项目(SYJXSFZX0702);四川省科技计划项目(2016GZ0017)

摘　　要：大学生方程式汽车大赛(简称FSAE)规则要求,参赛赛车必须在发动机进气系统中安装流通直径为20 mm的进气限制器。为弥补加装进气限制器对发动机动力性下降的影响,以FSAE赛车4缸发动机进气系统为研究对象,利用GT-Power建立发动机仿真分析模型,通过外特性实验验证模型的准确性后,以FSAE赛车发动机进气系统结构尺寸作为单一变量,分析FSAE赛车发动机进气歧管长度及稳压箱容积对发动机性能的影响规律,并提出优化设计方案。通过对比实验,可知优化后发动机的动力性能得到提升,最大转矩增幅为5.9%。According to the regulation of Formula SAE Rules, the circulating diameter of the intake manifold installed in FSAE racing car’s engine is limited to 20mm. Generally, this leads to the power performance degradation. Therefore, we researched the en-gine intake system of FSAE racing car and the simulation model was established with GT - Power software. The accuracy of the simula-tion model was verified. Then the model was used to calculate and analyze the effects of the length of intake manifold and the volume of plenum on power performance. Finally, the program was developed to optimize the intake system structure size. The experiment results show that the optimization can improve the power performance and increase the maximum torque 5.9%.

关 键 词：FSAE 进气管 稳压箱 优化 

分 类 号：TK41[动力工程及工程热物理—动力机械及工程]