雨天条件下车辆轮胎与沥青路面间附着特性  

Adhesion Characteristics of Vehicle Tire and Asphalt Pavement Under Rainy Conditions

作　　者：马涛[1] 汤钧尧 郑彬双 黄晓明[1] MA Tao;TANG Junyao;ZHENG Binshuang;HUANG Xiaoming(School of Transportation,Southeast University,Nanjing 211189,China)

机构地区：[1]东南大学交通学院,南京211189

出　　处：《北京工业大学学报》2022年第6期635-643,共9页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(51778139)。

摘　　要：轮胎与路面间的附着特性是影响车辆行驶安全性的最重要因素之一.雨天条件下沥青路面容易产生水膜,由于流体动力润滑作用使得轮胎相对于粗糙路面发生了一定距离的滑移,产生滑水现象,在很大程度上影响胎路之间的附着特性.根据雨天情况下沥青路表水膜形成机理及水膜厚度影响因素,在已有水膜厚度预测模型的基础上考虑到车辆的制动稳定性需求,分析了水流在轮胎与粗糙路表之间的流体润滑作用以及轮胎、流体、路面间的相互作用.按照水膜厚度大小将路面状态分为干燥、潮湿、润滑和积水4种情况,并从水膜厚度、路表宏观纹理平均构造深度(mean profile depth,MPD)值、行车速度等影响因素出发研究了路面附着系数的变化规律,为提高路面抗滑性和行车安全性提供指导.The adhesion between tire and pavement is one of the most important factors affecting vehicle driving safety.Asphalt pavement is easy to produce water film in rainy conditions.Due to the hydrodynamic lubrication,the tire slips to a certain distance relative to the rough pavement,resulting in hydroplaning,which significantly affects the adhesion characteristics between tires and road.According to the formation mechanism of water film on asphalt pavement in rainy conditions and the influencing factors of water film thickness,based on the existing water film thickness prediction model and considering the demand of vehicle braking stability,this paper analyzed the fluid lubrication between tire and rough road surface,and the interaction among tire,fluid and road surface.Based on the influence factors such as water film thickness,mean profile depth(MPD)of road surface macro texture and driving speed,the change rule of adhesion coefficient was studied,which provides guidance for improving pavement skid resistance and driving safety.

关 键 词：沥青路面 抗滑性能 胎路附着特性 轮胎滑水现象 水膜厚度 行车安全 

分 类 号：U416.2[交通运输工程—道路与铁道工程]