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| 路面不平度的分形分级参数研究 | |
| 引用本文： | 赵兰英,鲁植雄,侯占峰. 路面不平度的分形分级参数研究[J]. 交通与计算机, 2008, 26(6) |
| 作者姓名： | 赵兰英 鲁植雄 侯占峰 |
| 作者单位： | 1. 南京农业大学,南京,210031 2. 内蒙古农业大学,呼和浩特,010018 |
| 摘 要： | 根据路面不平度的现有分级标准,采用傅里叶逆变换的方法模拟8个等级路面不平度高程数据,计算路面不平度的分形参数,提出路面不平度的分形分级参数.计算分析结果表明,傅里叶逆变换方法模拟的各级路面分形维数均在1.60左右,差别很小,表现出明显的自相似性;路面不平度指数结合了路面不平度的传统的统计特征参数与分形维数,因而更适合路面不平度的分级;路面不平度指数随功率谱密度的增大而增大,且由高级到低级呈明显增大趋势,路面不平度等级越差,路面不平度指数越大. |
| 关 键 词： | 路面不平度 分级 分形参数 |
Fractal Parameters of the Grade of Road Surface Roughness |
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| ZHAO Lanying,LU Zhixiong,HOU Zhanfeng. Fractal Parameters of the Grade of Road Surface Roughness[J]. Computer and Communications, 2008, 26(6) | |
| Authors: | ZHAO Lanying LU Zhixiong HOU Zhanfeng |
| Affiliation: | Nanjing Agricultural University;Nanjing 210031;China;Inner Mongolia Agricultural University;Hohhot 010018;China |
| Abstract: | The eight-grade road surface data were simulated by inverse Fourier transform,according to road surface roughness grade standard.Its fractal parameters were calculated and the fractal parameter for the grade of road surface roughness was proposed.The result shows that the simulating roads display obvious similarity.Its fractal dimension was approximately 1.60,which had little difference of grade.The road surface roughness index unified the traditional statistical parameter and the fractal dimension,which wa... |
| Keywords: | road surface roughness grade fractal parameters |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |