基于驾乘舒适性的沥青混凝土路面评价
发布时间：2018-11-18 08:34
【摘要】：为给沥青混凝土路面舒适性评价及日常管理养护提供理论依据,在测得室内外大量道路路面性能参数及三向加速度数据的基础上,研究了加权加速度均方根值与道路路面性能参数之间的关系.运用214组有效室外实验数据,拟合了加权加速度均方根、行驶速度与平整度关系的线性回归方程,并用驾驶模拟舱对室外实验结论进行了验证.结果表明:加权加速度均方根与平整度强相关,与速度中等程度相关,与动态摩擦系数弱相关,在动态摩擦系数一定的条件下,驾乘舒适性随平整度及行驶速度的增加而降低;当平整度为1.35和3.05 mm/m时,满足驾乘舒适性的最大速度分别为124.1和88.7 km/h.
[Abstract]:In order to provide the theoretical basis for the evaluation of asphalt concrete pavement comfort and the daily management and maintenance, on the basis of measuring a large number of pavement performance parameters and three direction acceleration data, The relationship between weighted acceleration root mean square (RMS) and road pavement performance parameters is studied. Based on 214 effective outdoor experimental data, the linear regression equations of weighted acceleration RMS, speed and smoothness are fitted, and the results of outdoor experiments are verified by driving simulation cabin. The results show that the root mean square of weighted acceleration is strongly related to flatness, moderate to velocity and weak to dynamic friction coefficient. Under the condition of constant dynamic friction coefficient, driving comfort decreases with the increase of smoothness and driving speed. When the smoothness is 1.35 and 3.05 mm/m, the maximum velocities of driving comfort are 124.1 and 88.7 km/h., respectively.
【作者单位】： 福州大学土木工程学院;北京工业大学交通工程北京市重点实验室;
【基金】：教育部高等学校博士学科点专项科研基金资助项目(20091103110008)
【分类号】：U416.217
本文编号：2339490
[Abstract]:In order to provide the theoretical basis for the evaluation of asphalt concrete pavement comfort and the daily management and maintenance, on the basis of measuring a large number of pavement performance parameters and three direction acceleration data, The relationship between weighted acceleration root mean square (RMS) and road pavement performance parameters is studied. Based on 214 effective outdoor experimental data, the linear regression equations of weighted acceleration RMS, speed and smoothness are fitted, and the results of outdoor experiments are verified by driving simulation cabin. The results show that the root mean square of weighted acceleration is strongly related to flatness, moderate to velocity and weak to dynamic friction coefficient. Under the condition of constant dynamic friction coefficient, driving comfort decreases with the increase of smoothness and driving speed. When the smoothness is 1.35 and 3.05 mm/m, the maximum velocities of driving comfort are 124.1 and 88.7 km/h., respectively.
【作者单位】： 福州大学土木工程学院;北京工业大学交通工程北京市重点实验室;
【基金】：教育部高等学校博士学科点专项科研基金资助项目(20091103110008)
【分类号】：U416.217
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，本文编号：2339490
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