基于抗滑降噪性能的沥青路面表面构造评价指标
发布时间：2019-04-03 19:34
【摘要】：为了揭示沥青混合料表面构造对路面抗滑降噪性能的影响机理,运用频谱分析法计算得到各级倍频程中心频率对应波长处的沥青混合料(HMA)表面构造水平;通过室内试验(二维表面构造测试法(2D-ITAM),动态旋转摩擦系数测试仪法(DFT)及室内轮胎加速下滚噪声测试法),分析表面构造水平及分布特性表征指标和沥青混合料表面摩擦系数及轮胎/路面噪声水平之间的相关关系.结果表明:表面构造特征波水平可以表征沥青混合料表面宏观构造和短波段大构造水平及分布特性;且与安装有ABS防抱死系统车辆在沥青混合料表面行驶时的抗滑性能之间有良好的相关性,与轮胎/路面噪声水平之间具有一定的相关性.
[Abstract]:In order to reveal the mechanism of the influence of surface structure of asphalt mixture on the performance of anti-skid and noise reduction, the (HMA) surface structure level of asphalt mixture with the center frequency of octave course corresponding to the wavelength is calculated by means of spectrum analysis. Through indoor tests (two-dimensional surface construction test (2D-ITAM), dynamic rotating friction coefficient tester (DFT) and indoor tire acceleration roll-down noise test), The correlation between surface structure level and distribution characteristics, surface friction coefficient of asphalt mixture and noise level of tire / road surface is analyzed. The results show that the surface structural characteristic wave level can be used to characterize the surface macro-structure and short-band large structure level and distribution characteristics of asphalt mixture. There is a good correlation between the anti-skid performance of vehicles equipped with ABS anti-lock system on the surface of asphalt mixture and the noise level of tire / road surface.
【作者单位】： 西南交通大学土木学院;西南交通大学高速铁路线路工程教育部重点实验室;长安大学特殊地区公路工程教育部重点实验室;长安大学公路学院;
【基金】：国家自然科学基金资助项目(51578076,5178467,51408287);国家自科学基金青年基金资助项目(2682016CX009) 中央高校基本科研业务费科技创新资助项目(2682016CX009) 中央高校基本科研业务专项费“特殊地区公路工程教育部重点实验室”开放基金项目(310821171103)
【分类号】：U416.217
本文编号：2453498
[Abstract]:In order to reveal the mechanism of the influence of surface structure of asphalt mixture on the performance of anti-skid and noise reduction, the (HMA) surface structure level of asphalt mixture with the center frequency of octave course corresponding to the wavelength is calculated by means of spectrum analysis. Through indoor tests (two-dimensional surface construction test (2D-ITAM), dynamic rotating friction coefficient tester (DFT) and indoor tire acceleration roll-down noise test), The correlation between surface structure level and distribution characteristics, surface friction coefficient of asphalt mixture and noise level of tire / road surface is analyzed. The results show that the surface structural characteristic wave level can be used to characterize the surface macro-structure and short-band large structure level and distribution characteristics of asphalt mixture. There is a good correlation between the anti-skid performance of vehicles equipped with ABS anti-lock system on the surface of asphalt mixture and the noise level of tire / road surface.
【作者单位】： 西南交通大学土木学院;西南交通大学高速铁路线路工程教育部重点实验室;长安大学特殊地区公路工程教育部重点实验室;长安大学公路学院;
【基金】：国家自然科学基金资助项目(51578076,5178467,51408287);国家自科学基金青年基金资助项目(2682016CX009) 中央高校基本科研业务费科技创新资助项目(2682016CX009) 中央高校基本科研业务专项费“特殊地区公路工程教育部重点实验室”开放基金项目(310821171103)
【分类号】：U416.217
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