横风作用下公路行车安全限速模型研究
发布时间：2018-11-17 09:08
【摘要】：在公路横风多发区域,因突发性及隐蔽性等特点,极易对车辆安全行驶造成威胁,常导致恶性交通事故。目前国内对横风多发路段汽车的行车安全限速研究相对较少,较难满足横风气象下的安全需求。此外,横风作用下,不同车辆抗风能力有很大差异,若能对大小车辆区别限速,则对交通管理以及安全信息发布都有积极的意义。文中根据道路行车安全分析理论及空气动力学理论,充分考虑大、小型车对横风的安全敏感阈值存在差异,分别建立不同条件下的安全限速模型,并通过Carsim/Trucksim等软件对模型计算结果进行仿真分析,以保证所建模型能够较为准确地反映横风作用下的汽车动态,最终能够较好地服务于横风行车安全预警系统。
[Abstract]:In highway wind-prone areas, it is easy to threaten the safety of vehicles because of the characteristics of sudden and concealment, and often lead to malignant traffic accidents. At present, there are few researches on the speed limit of cross wind multi-section vehicles in our country, so it is difficult to meet the safety requirement of cross wind weather. In addition, the anti-wind ability of different vehicles is very different under the action of crosswind. If the speed limit of large and small vehicles can be distinguished, it will be of positive significance to traffic management and safety information release. According to the theory of road safety analysis and aerodynamics, the safety sensitivity threshold of large and small vehicles to crosswind is considered in this paper, and the safety limit models under different conditions are established respectively. The simulation results of the model are analyzed by Carsim/Trucksim and other software to ensure that the model can accurately reflect the vehicle dynamics under the action of cross-wind, and finally serve the safety warning system of cross-wind vehicle better.
【作者单位】： 南京林业大学汽车与交通工程学院;
【基金】：南京林业大学实验室项目,项目编号nlzzyq200321
【分类号】：U492.84
[Abstract]:In highway wind-prone areas, it is easy to threaten the safety of vehicles because of the characteristics of sudden and concealment, and often lead to malignant traffic accidents. At present, there are few researches on the speed limit of cross wind multi-section vehicles in our country, so it is difficult to meet the safety requirement of cross wind weather. In addition, the anti-wind ability of different vehicles is very different under the action of crosswind. If the speed limit of large and small vehicles can be distinguished, it will be of positive significance to traffic management and safety information release. According to the theory of road safety analysis and aerodynamics, the safety sensitivity threshold of large and small vehicles to crosswind is considered in this paper, and the safety limit models under different conditions are established respectively. The simulation results of the model are analyzed by Carsim/Trucksim and other software to ensure that the model can accurately reflect the vehicle dynamics under the action of cross-wind, and finally serve the safety warning system of cross-wind vehicle better.
【作者单位】： 南京林业大学汽车与交通工程学院;
【基金】：南京林业大学实验室项目,项目编号nlzzyq200321
【分类号】：U492.84
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本文编号：2337246
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