道路横向加速度变化率作为线形舒适性评价指标的探讨

该文通过对汽车在道路平曲线上行驶状况、受力情况的分析,从行驶力学的角度确定了横向加速度和轴向加速度的关系,进一步推导出综合了路线平、纵、横的横向加速度变化率模型。提出了以横向加速度变化率为指标来评价道路线形舒适性的方法,并结合实际工程,应用该评价方法的对路段线型舒适性进行了评价检验。

Discussion on Transverse Acceleration Change Rate of Road Taking as Evaluation Index of Linear Comfortableness

The article defines the relation between the transverse acceleration and the axial acceleration from the angle of running mechanics by the analysis the running status and the stress situation of the automobile on the plane curve of road,and further deduces the model synthesizing the plane,vertical and horizontal transverse acceleration change rates.The article puts forward the method taking the transverse acceleration change rate as the index for evaluating the road linear comfortableness.According to the practical case,this evaluation method is applied to inspect the linear comfortableness of road.