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恶劣天气路面条件对行车安全的影响

, PP. 58-63

Keywords: 汽车工程,行车安全,动力学仿真,路面状况,ADAMS/Car

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Abstract:

利用多体动力学仿真软件ADAMS/Car,建立了车辆的动力学模型、道路模型以及车-路耦合模型,通过改变路面摩擦因数,分别模拟了晴天、雨天、雪天和结冰条件下的路面状况,进行了单移线和阶跃转向2种常见行驶工况的仿真试验,得到了车辆的侧向位移、航向角以及轮胎的侧向反力的响应输出,分析了研究恶劣天气路面条件对行车安全的影响。计算结果表明雪天路面摩擦因数为0.28时,在单移线仿真工况下,车速为50km.h-1,车辆侧向位移达到4.50m,车辆容易超出车道,发生碰撞危险;在阶跃转向仿真工况下,车速为40km.h-1,车辆将失去控制。

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