Driving safety is of significance in the automobile industry and transportation systems. Pavement skid resistance has long been recognized as the most important parameter in reducing traffic accidents especially in we...Driving safety is of significance in the automobile industry and transportation systems. Pavement skid resistance has long been recognized as the most important parameter in reducing traffic accidents especially in wet conditions. The knowledge of the friction coefficient and skid resistance is very valuable information for safety enhancement of roads. Thus, it is important to find proper methods for measuring skid resistance and frictional properties of the pavement surface. There is a wide range of measurement methods and devices for measuring skid resistance. This paper presents a review on the research studies that have been done on characterization of the frictional properties of the pavement surface and discussed methods used for measurement and evaluation of texture characteristics and the strengths and weaknesses of these methods. Finally, some ideas have been suggested to develop new methods for better and proper measurement of skid resistance.展开更多
利用有限元软件ANSYS建立路面结构的分析模型,根据加强杆及路面整体的受力分析结果,对复合材料轻质高强路面进行了优化设计。结果表明:3种多孔加强杆应力分布和变形趋势基本一致,仅在前后车轮位置附近产生应力和变形。最大应力出现在前...利用有限元软件ANSYS建立路面结构的分析模型,根据加强杆及路面整体的受力分析结果,对复合材料轻质高强路面进行了优化设计。结果表明:3种多孔加强杆应力分布和变形趋势基本一致,仅在前后车轮位置附近产生应力和变形。最大应力出现在前轮作用处,最大应力均为291.667 k Pa;最大位移出现在后轮作用处,其中3孔结构位移最小,但位置基本一致。经综合分析比较,优化设计方案为应急路面器材加强杆件应采用60×30 mm 3孔箱体结构,路面杆件间距为60 mm。展开更多
文摘Driving safety is of significance in the automobile industry and transportation systems. Pavement skid resistance has long been recognized as the most important parameter in reducing traffic accidents especially in wet conditions. The knowledge of the friction coefficient and skid resistance is very valuable information for safety enhancement of roads. Thus, it is important to find proper methods for measuring skid resistance and frictional properties of the pavement surface. There is a wide range of measurement methods and devices for measuring skid resistance. This paper presents a review on the research studies that have been done on characterization of the frictional properties of the pavement surface and discussed methods used for measurement and evaluation of texture characteristics and the strengths and weaknesses of these methods. Finally, some ideas have been suggested to develop new methods for better and proper measurement of skid resistance.
文摘利用有限元软件ANSYS建立路面结构的分析模型,根据加强杆及路面整体的受力分析结果,对复合材料轻质高强路面进行了优化设计。结果表明:3种多孔加强杆应力分布和变形趋势基本一致,仅在前后车轮位置附近产生应力和变形。最大应力出现在前轮作用处,最大应力均为291.667 k Pa;最大位移出现在后轮作用处,其中3孔结构位移最小,但位置基本一致。经综合分析比较,优化设计方案为应急路面器材加强杆件应采用60×30 mm 3孔箱体结构,路面杆件间距为60 mm。
