| 基于表面灰度图像的植物磨料磨损表面分形维数计算 |
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| 引用本文： | 黄晓鹏,黄建龙,吴劲锋,万芳新,张炜.基于表面灰度图像的植物磨料磨损表面分形维数计算[J].润滑与密封,2011(8). |
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| 作者姓名： | 黄晓鹏 黄建龙 吴劲锋 万芳新 张炜 |
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| 作者单位： | 兰州理工大学机电学院;甘肃农业大学工学院; |
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| 基金项目： | 国家自然科学基金项目(51065001); 甘肃省教育厅资助项目(1002-10) |
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| 摘 要： | 以磨损表面SEM灰度图像为研究对象,采用变分法、双毯法、差分盒计数法和盒计数法4种方法计算植物磨料对不同金属材料磨损表面的三维分形维数。结果表明:植物磨料对金属材料磨损表面具有分形特征,分形维数与体积损失有着密切关系,体积磨损越大,分形维数也越大。4种算法中,变分法计算的分形维数稳定性最好,其次是双毯法和差分盒计数法,盒计数法对表面噪声最为敏感。
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| 关 键 词： | 植物磨料 金属材料 磨损表面 SEM图像 分形维数 |
Calculation on Fractal Dimension of Plant Abrasive Wear Surface Based on Surface Grayscale Image |
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| Huang Xiaopeng, Huang Jianlong Wu Jingfeng Wan Fangxin Zhang Wei.Calculation on Fractal Dimension of Plant Abrasive Wear Surface Based on Surface Grayscale Image[J].Lubrication Engineering,2011(8). |
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| Authors: | Huang Xiaopeng Huang Jianlong Wu Jingfeng Wan Fangxin Zhang Wei |
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| Affiliation: | Huang Xiaopeng1,2 Huang Jianlong1 Wu Jingfeng2 Wan Fangxin2 Zhang Wei2(1.College of Mechanical and Electronical Engineering,Lanzhou University of Technology,Lanzhou Gansu 730050,China,2.College of Engineering,Gansu Agricultural University,Lanzhou Gansu 730070,China) |
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| Abstract: | Based on gray SEM images of worn surfaces,four methods such as variational method,Peleg's blanket method,box-counting method(BC)and differential box-counting(DBC)method were used to calculate the three-dimensional fractal dimension of different worn metal surfaces against plant abrasive.The results show that worn metal surfaces against plant abrasive has fractal characteristics,fractal dimension is closely related with the volume wear loss,the greater the volume wear loss,the greater the fractal dimension.I... |
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| Keywords: | plant abrasive metal materials worn surface SEM image fractal dimension |
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