用户路面不平度等级划分及路面比例研究

Research on User Road Classifi cation and User Road Percentage Statistic

Cebon方法将空间功率谱密度转化为频域信号,由此结合轴头加速度可将空间功率谱密度法转化为加速度功率谱密度法,即通过基于白噪声生成法和加速度功率谱密度法建立了路面不平度数学模型。运用该方法处理各类传感器测量的实际道路载荷谱数据,然后通过特征参数提取法评价所测路段的路面等级,并在分析和处理所有测量路段后,对实际测试的用户路面状况进行了路面等级划分。结果表明大部分用户路面等级集中在B级,整体路面不平度在B级以上。

The Cebon method converts spatial spectral density into frequency domain.By combining the road surface acceleration,spatial spectral density can be transformed into acceleration spectral density.Using the method to process the actual measurement data of road load spectral density from various sensors,the level of the road surface can be evaluated using the feature parameter extraction method.After analyzing and processing all measured sections,the actual road surface condition of the users is evaluated based on the statistical results.The results show that the road surface in the measured area is generally level and most of it is concentrated in the B class.