方程式赛车解耦悬架设计与运动仿真分析  

Decoupled Suspension Design and Motion Simulation Analysis of Chines Formula SAE

作　　者：权双璐 魏帅 费逢宇 胡改玲 QUAN Shuanglu;WEI Shuai;FEI Fengyu;HU Gailing(College of Mechanical Engineering,Xi'an Jiaotong University,Xi'an 710049,China;Shaanxi Fast Gear Company Limited,Xi'an 710049,China)

机构地区：[1]西安交通大学机械工程学院,陕西西安710049 [2]陕西法士特齿轮有限责任公司,陕西西安710049

出　　处：《汽车实用技术》2024年第15期59-62,共4页Automobile Applied Technology

摘　　要：悬架系统是车辆的重要组成部分,对赛车操纵稳定性作出很大的贡献。为适应中国大学生方程式汽车大赛(FSEC)对不同赛道环境的适应性,减少两侧车轮受侧倾和纵倾时的相互影响,设计了一种完全解耦的悬架结构。该悬架系统包括导向机构、减震元件、横向防倾杆等,通过两个避震器和与之相连的导向机构的几何参数设计与力学分析,有效实现了赛车纵倾刚度和侧倾刚度分离。研究基于MATLAB对解耦悬架系统进行了运动学仿真模拟,分析结果表明,该结构在车辆侧倾和俯仰时,两避震单元之间几乎没有影响,可有效实现车辆纵倾刚度和侧倾刚度的独立控制和调整。该设计可有效提升赛车的整体操控性,使之更适应比赛赛道,有助于提升赛车车队的成绩。The suspension system is an important part of the vehicle,contributing significantly to the handling stability of a race car.In order to adapt to the varying track conditions of the formula student electric China(FSEC)to different track environments and reduce the mutual influence of the two side wheels during leaning and rolling,a fully decoupled suspension structure is designed.This suspension system includes guiding mechanisms,shock absorbers,lateral anti-roll bars,etc.Through the geometric parameter design and mechanical analysis of two shock absorbers and their connected guiding mechanisms,the separation of the car's roll stiffness and pitch stiffness are effectively achieved.The study conducts kinematic simulation and analysis of the decoupled suspension system using MATLAB.The results indicate that this structure exhibits minimal influence between the two shock absorbers during the vehicle's leaning and pitching,enabling independent control and adjustment of the car's roll stiffness and pitch stiffness.This design enhances the overall handling performance of the race car,making it more adaptable to race tracks,thereby assisting in improving the performance of the racing team.

关 键 词：方程式赛车 悬架系统 解耦悬架 仿真分析 

分 类 号：U463.218.1[机械工程—车辆工程]