基于分形插值的三维路面重构与分析

原始精细的路面谱是研究车辆与路面耦合的重要基础，对车辆的通过性和噪声、振动及不平顺性NVH （noise，vibration and harshness）分析有重要的应用价值。为了构建与原始路面相同或相近的路面谱，利用非接触式激光路面不平度仪测量沥青路面、水泥路面、比利时路面和砂石路面的三维路面不平度；基于分形理论，采用迭代函数法重构这四种路面谱；结合路面不平度的统计特性评价指标和分形维数对四种路面的原始谱和重构谱进行评价。研究结果表明：重构前、后路面谱的平均值、标准差、峰度系数以及分形维数变化范围在±5%以内，除水泥路面的偏态系数变化范围均在±9%以内，重构路面谱与原始谱具有一致性；重构路面...

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Bibliographic Details
Published in农业工程学报 Vol. 30; no. 22; pp. 188 - 194
Main Author 鲁植雄 徐浩 刘奕贯 姜春霞 Hoogmoed W B 周晶
Format Journal Article
LanguageChinese
Published 南京农业大学工学院,南京,210031%南京农业大学工学院，南京 210031 2014
南京交通职业技术学院，南京 211188%瓦赫宁根大学及研究中心农场技术组，瓦赫宁根 6700
Subjects
三维
分形插值
分形维数
盒维数法
路面不平度
迭代函数系统
重构
三维
three dimensional
box-counting method
重构
分形维数
fractal dimension
迭代函数系统
盒维数法
fractal interpolation
路面不平度
reconstruction
road roughness
分形插值
iterated function system (IFS)
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ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2014.22.023

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Summary:原始精细的路面谱是研究车辆与路面耦合的重要基础，对车辆的通过性和噪声、振动及不平顺性NVH （noise，vibration and harshness）分析有重要的应用价值。为了构建与原始路面相同或相近的路面谱，利用非接触式激光路面不平度仪测量沥青路面、水泥路面、比利时路面和砂石路面的三维路面不平度；基于分形理论，采用迭代函数法重构这四种路面谱；结合路面不平度的统计特性评价指标和分形维数对四种路面的原始谱和重构谱进行评价。研究结果表明：重构前、后路面谱的平均值、标准差、峰度系数以及分形维数变化范围在±5%以内，除水泥路面的偏态系数变化范围均在±9%以内，重构路面谱与原始谱具有一致性；重构路面谱保持了原始路面的结构特性，并具有路面的细微结构。
Bibliography:Lu Zhixiong, Xu Hao, Liu Yiguan, Jiang Chunxia, Hoogmoed W B, Zhou Jing （1. Engineering College, Nanjing Agricultural University, Nanjing 210031, China; 2. Nanjing Communications Institute of Technology, Nanjing 211188, China; 3. Farm Technology Group, Wageningen University and Research Centre, Wageningen 6700, The Netherlands）
11-2047/S
The interaction between tire and pavement guarantees ground driving force which is used to drive a car forward, so it is a significant foundation to study the interactional principle between them. In addition, studying the coupling-principle of tire and pavement can be conducive to address the NVH （Noise, Vibration and Harshness） issues caused by the roughness and unevenness of pavement, while an accurate pavement model is essential to the simulation study of tire and pavement coupling, because the precise pavement model can provide realistic data for a simulation process. This paper was trying to establish a precise pavement model based on fractal theory and limited sparse rou
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2014.22.023