摘要
为解决方程式赛车高速过弯产生的转向稳定性和单侧偏磨的问题,进一步提高赛车的过弯能力,提出一种适用于方程式赛车转向梯形的优化设计方案。探究侧偏角对转向的影响,优化标准阿克曼转角关系,从而确定目标函数和约束条件,控制转向梯形的内外转角关系尽可能符合阿克曼校正系数为43%的转向关系,通过MATLAB计算得到优化结果。利用ADAMS进行仿真实验,通过车轮平行跳动实验验证了优化结果的可靠性。结果表明优化后的转向梯形的臂长为82.55mm,底角为113.85°,具有良好的转向稳定性。
In order to solve the problem of steering stability and unilateral eccentric wear of Formula car at high speed,and to further improve the bending capacity of the racing car,an optimal design scheme for the steering trapezium of the Formula car is proposed in this paper. Considering the influence of lateral force on steering,a motion model of the steering trapezium is established to determine the objective function and the constraint conditions. The relationship between the internal and external rotation angles of the steering trapezium is as close as possible to the Ackerman correction coefficient of 43%,and the optimized steering trapezium is obtained by MATLAB calculation. At the same time,ADAMS is used to establish the steering system and suspension system dynamics model of the car,and the reliability of the optimization results is verified through the wheel parallel beating experiment. The results show that the optimized steering trapezium has an arm length of 82.55 mm and a bottom angle of 113.85°,which has good steering stability.
作者
巢香云
黄蕾澎
代成浩
袁璐莹
谭芮庆
Chao Xiangyun;Huang Leipeng;Dai Chenghao;Yuan Luying;Tan Ruiqing(Nanjing Agriculture University,Nanjing City,Jiangsu Province 213000,China)
出处
《农业装备与车辆工程》
2019年第6期39-41,63,共4页
Agricultural Equipment & Vehicle Engineering
基金
南京农业大学SRT计划基金资助
关键词
方程式赛车
侧偏力
转向梯形
优化设计
仿真
Formula racing car
lateral force
steering trapezoid
optimization design
simulation
