摘要
针对汽车以较低限速通过传统圆弧减速带时,也会产生比较明显振动的缺点,提出了一种圆弧相切式单向减速带.建立4自由度汽车数学模型,在MATLAB/Simulink中进行平顺性仿真对比分析,结果表明:一定减速带轮廓参数条件下,汽车在低速通过圆弧相切式单向减速带时,车身垂向加速度峰值响应低于传统圆弧减速带;在高速通过圆弧相切式单向减速带时,车身垂向加速度峰值响应高于传统圆弧减速带.验证了所提出的减速带能够避免传统圆弧减速带的缺点,实现有效限速.并对圆弧相切式单向减速带轮廓进行了优化.
Even though passing through a traditional speed bump at a lower speed limit, a vehicle produced obvious vibrations. In view of this situation, an arc tangent one-way speed bump was designed, a 4 DOF math model of the vehicle was built, and the simulation analysis of its ride comfort was conducted in MATLAB/Simulink. The results indicated that, when the vehicle passed through the one - way speed bump with certain contour parameters at a lower speed, the peak vertical acceleration of its body was lower than that passing through the traditional one; and when passed at a higher speed, the corresponding peak value was higher. The results also verified that the designed speed bump could overcome the shortcomings of the traditional one and the effective speed limit was implemented. The contour of the arc tangent one-way speed bump was optimized.
出处
《车辆与动力技术》
2016年第2期34-38,共5页
Vehicle & Power Technology
