| 基于分形特征的交通运输车辆行走路面的三维重构 |
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| 引用本文： | 李晓勤,鲁植雄,席鑫鑫,赵苗苗.基于分形特征的交通运输车辆行走路面的三维重构[J].农业工程学报,2012,28(2):61-65. |
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| 作者姓名： | 李晓勤 鲁植雄 席鑫鑫 赵苗苗 |
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| 作者单位： | 1. 南京农业大学工学院,南京210031;塔里木大学机电学院,阿拉尔843300
2. 南京农业大学工学院,南京,210031 |
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| 基金项目： | 国家自然科学基金资助项目（51175269）；教育部博士点基金项目（20100097110027） |
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| 摘 要： | 为获得路面激励,通过理论推导实现基于分形特征的交通运输车辆行走路面的三维重构。对国际与国家规定的标准路面谱进行逆傅里叶变换以产生随机路面样本,用轮廓均方根法获得路面平均分形维数(1.59);结合二维路面的统计特征,根据随机中点位移法和三角剖分法,建立三维路面理论模型;对各等级路面进行三维仿真,其纵向任一截面可作为二维仿真路面。该建模理论适合行走路面的三维重构。
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| 关 键 词： | 分形 仿真 路面 随机中点位移法 三角网格剖分 |
| 收稿时间： | 2011/5/17 0:00:00 |
| 修稿时间： | 2011/10/29 0:00:00 |
3D reconstruction of transportation vehicles travecting pavement based on fractal characteristics |
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| Li Xiaoqin,Lu Zhixiong,Xi Xinxin and Zhao Miaomiao.3D reconstruction of transportation vehicles travecting pavement based on fractal characteristics[J].Transactions of the Chinese Society of Agricultural Engineering,2012,28(2):61-65. |
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| Authors: | Li Xiaoqin Lu Zhixiong Xi Xinxin and Zhao Miaomiao |
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| Institution: | 1(1.Department of Agricultural Engineering,Nanjing Agricultural University,Nanjing 210031,China;2.Institute of Mechanical and Electrical,Tarim University,Alar 843300,China) |
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| Abstract: | To obtain the road excitation, 3D walking pavement of transportation vehicles was reconstructed based on fractal characteristics in theoretically. The random samples were generated by inverse Fourier transform of international and national standard pavement spectrum, the average fractal dimension (1.59) was calculated using the Contour RMS method; 3D pavement theoretical model was established according to the average fractal dimension and the statistical characteristics of 2Dstandard pavement by the Random mid-point displacement method and the Triangulations method; every grade pavement was simulated in 3D space, vertical section of which could be regard as 2D standard simulation pavement. This method is fit for 3D reconstruction of pavement. |
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| Keywords: | fractals computer simulation pavements random midpoint displacement method triangle mesh dissection |
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