高速公路平曲线路段半挂汽车列车的横向稳定性.docVIP

高速公路平曲线路段半挂汽车列车的横向稳定性 曲桂娴 贺玉龙 孙小端 冯丙丙 北京工业大学城市交通学院 北京工业大学交通工程北京市重点实验室 X 关注成功！ 加关注后您将方便地在 我的关注中得到本文献的被引频次变化的通知！ 新浪微博 腾讯微博 人人网 开心网 豆瓣网 网易微博 摘????要： 为提升半挂汽车列车在高速公路平曲线路段行驶的安全性, 采用TruckSim软件构建车辆动力学仿真系统, 选取车轮临界横向附着系数和横向载荷转移比作为车辆横向稳定性评价指标, 通过单因素分析和多因素方差分析, 确定了高速公路平曲线路段的几何线形、车速和车辆总质量对横向稳定性指标的影响.运用SPSS软件建立了半挂汽车列车的横向稳定性参数模型, 并对半挂汽车列车在雨雪路面的运行安全进行评价.研究结果表明:总质量48 t的半挂汽车列车以任何速度在结冰路面上行驶都会发生侧滑;在积雪路面上均可保证低速安全运行;在积雨路面上, 半挂汽车列车可以保证以90 km/h的车速安全运行.研究成果量化了平曲线几何线形、车速和车辆总质量对半挂汽车列车横向稳定性的影响, 所建立的车辆横向稳定性模型可以为构建高速公路行车安全保障体系提供理论依据. 关键词： 交通安全; 横向稳定性; TruckSim仿真; 半挂汽车列车; 平曲线路段; 作者简介：曲桂娴 (1990—) , 女, 博士研究生, 主要从事交通安全方面的研究, E-mail:quguixian0108@126.com 收稿日期：2016-12-29 基金：国家科技支撑计划资助项目 (2014BAG01B01) Lateral Stability of Tractor-semitrailer on Freeway Horizontal Curve Section QU Guixian HE Yulong SUN Xiaoduan FENG Bingbing Abstract： In order to improve the driving safety of tractor-semitrailer on freeway horizontal curve sections, the vehicle dynamics simulation system was established by TruckSim software. Critical wheel lateral adhesion coefficient and lateral load transfer ratio were selected as the lateral stability indicators.The influence of roadway geometrics, speed and gross vehicle mass on lateral stability indicators was investigated by single factor analysis and multi-factor analysis of variance. The models of vehicle lateral stability indicators were calibrated by SPSS software and the driving safety of the tractor-semitrailer on the ice, snow and rainwater covered pavements were evaluated. Results show that the tractor-semitrailer with the gross weight of 48 t skids on the ice pavements. Driving safety of tractor-semitrailer can be ensured at lower speed on snow pavements. On rainwater covered pavements, the tractor-semitrailer can remain a safe speed of 90 km/h. The research results have quantified the influence of roadway geometrics, speeds and gross vehicle weights on the lateral stability of the tractor-semitrailer. The advised vehicle lateral stability models can prov