【摘要】 通过分析车身的纵向弯曲变形对赛车转向的影响,得出提高车身纵向弯曲刚度能减小因车身的弯曲变形而产生的侧偏角,提高转向时的操纵稳定性.运用有侧偏转向的阿克曼理论设计赛车的转向系统参数并运用Matlab中非线性最小二乘函数进行优化,使得内、外车轮的转角变化情况与考虑侧偏的理论阿克曼公式接近,轮胎的侧滑量为最小,从而提高了赛车在弯道中的操纵稳定性.更多还原

【Abstract】 By analyzing the influence of the deformation of a racing car body on its cornering properties,it is summed up that increasing the longitudinal stiffness in bend of the body will help to reduce the sideslip angle of tire and to improve the cornering stability. By using Ackermann theory based on the cornering characteristics,the parameters of its steering system are designed and optimized by means of the nonlinear least square function in Matlab. The results show that the changes of the inner and outer sideslip angles of the wheels are close to the theoretical Ackermann formula based on the cornering characteristics,the lateral slip of the tires are minimized and the steering stability of the car is improved on the corner.更多还原