高速公路横风条件下安全行车速度研究  

Research on Safe Driving Speed in Crosswind Condition of Expressway

作　　者：朱晓东 徐铖铖[2] 罗瑞琪 高佳宁 Zhu Xiaodong;Xu Chengcheng;Luo Ruiqi;Gao Jianing

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津市300381 [2]东南大学交通学院,江苏南京210096

出　　处：《城市道桥与防洪》2019年第9期163-165,M0017,共4页Urban Roads Bridges & Flood Control

摘　　要：利用车辆动力学模型,分析了高速公路横风条件下车辆的侧滑问题,在综合考虑横风风速、车型、路面状况和车速的基础上,对我国4种典型汽车的行驶稳定性进行了分析;同时计算了不同类型车辆在不同横风速度下的安全行驶速度。结果表明:在横风作用下,车辆行驶速度越大,侧滑风险越大。因此,在高速公路上需要设置适当的横风限速,以保证横风条件下的行车安全。This paper analyzes the sideslip problem of vehicles in the crosswind condition of expressway by the vehicle dynamics model. On the basis of comprehensively considering the crosswind speed, vehicle type,pavement conditions and vehicle speed, this paper analyzes the driving stabilities of four typical vehicles in China, and also calculates the safe driving speeds of the different types of vehicles in the different crosswind speeds. The result shows that the higher the speed of vehicle, the greater of the risk of sideslip under the action of crosswind. Hence, the proper crosswind speed limit is needed to guarantee the driving safety in the crosswind of expressway.

关 键 词：横风 车辆行驶稳定性 驾驶安全 安全速度 车辆侧滑 

分 类 号：U491.25[交通运输工程—交通运输规划与管理]