主办:陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊:1976年

Automobile Applied Technology ›› 2023, Vol. 48 ›› Issue (20): 51-58.DOI: 10.16638/j.cnki.1671-7988.2023.020.011

• Design and Research • Previous Articles    

Design and Research of FSAE Racing Suspension

AN Jiachen1, ZANG Liguo*1, CHEN Bowen1,2, QIAN Cheng1, BAI Yuxing1   

  1. 1.School of Automobile and Rail Transit, Nanjing Institute of Technology,2.BAIC Heavy Truck Company Limited
  • Online:2023-10-30 Published:2023-10-30
  • Contact: ZANG Liguo

FSAE 赛车悬架的设计与研究

安嘉晨 1,臧利国*1,陈博文 1,2,钱 程 1,柏宇星 1   

  1. 1.南京工程学院 汽车与轨道交通学院,2.北汽重型汽车有限公司
  • 通讯作者: 臧利国
  • 作者简介:安嘉晨(2000-),男,研究方向为汽车动力学,E-mail:1426547879@qq.com。通信作者:臧利国(1986-),男,博士,教授,研究方向为车辆系统动力学与控制,E-mail:zangliguo1986@163.com。
  • 基金资助:
    江苏省大学生实践创新训练计划项目(202111276027Z);南京工程学院科研基金(CKJA202205)。

Abstract: Based on the formula society of automotive engineers (FSAE) competition rules, the requirements of the race on the suspension performance of the racing car are analyzed, the relevant dynamic parameters are calculated, the form of the suspension system is determined and modeled in CATIA. In ADAMS, the kinematics model of the suspension is constructed, and the variation range of the relevant performance index parameters of the suspension model during the wheel jump analysis is analyzed. The simulation results show that the designed suspension system meets the requirements of the rules, but the wheel alignment parameters change greatly with the vertical displacement of the wheel, which is not conducive to the handling stability. In ADAMS/Insight, the design of experimen (DOE) analysis and optimization of the hard point coordinates of the model are carried out based on the positioning parameters of the wheels. The comparison results show that the amount of change in wheel alignment parameters when the wheel runout after optimization is significantly reduced, and the performance of the car is well improved.

Key words: FSAE; Suspension system; Vehicle kinematics simulation

摘要: 基于大学生方程式汽车大赛(FSAE)比赛规则,分析了比赛对赛车悬架性能的要求, 计算了相关的动力学参数,确定了悬架系统的形式并使用 CATIA 进行建模。在 ADAMS 中构 建了悬架的运动学模型,并分析了悬架模型在轮跳分析时相关性能指标参数的变化范围。仿 真结果表明,所设计的悬架系统满足规则要求,但车轮定位参数随车轮上下跳动时的变化幅 度较大,不利于操纵稳定性。然后在 ADAMS/Insight 中基于车轮的定位参数对模型的硬点坐 标进行试验设计(DOE)分析优化,优化前后的结果对比表明,优化后车轮跳动时车轮定位 参数的变化量显著减小,赛车的性能得到了很好的改善。

关键词: FSAE;悬架系统;车辆运动学仿真