【作者】 侯占峰； 鲁直雄；

【Author】 Hou Zhanfeng;Lu Zhixiong;Neimenggu Agricultural University;

【机构】 内蒙古农业大学；

【摘要】 利用激光式不平度测试仪沿着行驶方向测定混凝土、砖、土路面的不平度,对每一种路面不平度的RMS高度、自相关长度、功率谱函数和分形维数进行了分析,结果表明:RMS高度、自相关长度、功率谱函数和分形维数与各种路面具有明显的相关性,而且利用分形维数可以较好的表征随机路面的不规则程度。更多还原

【Abstract】 By using of a laser profiler,the surface height variation trace of three types of road profiles,that is concrete,brick,soil,were obtained.Using these data the range of root mean square height,autocorrelation length,power spectral density function and fractal dimension were estimated.The results show that road surface have well correlation with the estimated parameters and the complex process related to the different road can be well described by fractal dimension.更多还原