| 冲击作用下粘性土壤破碎体的分形维数与影响因 |
| |
| 引用本文： | 孟凤英,丁启朔,鹿飞,丁为民,潘根兴.冲击作用下粘性土壤破碎体的分形维数与影响因[J].农业机械学报,2009,40(3):108-111. |
| |
| 作者姓名： | 孟凤英 丁启朔 鹿飞 丁为民 潘根兴 |
| |
| 作者单位： | 南京农业大学工学院,南京,210031 |
| |
| 基金项目： | 国家自然科学基金，中国博士后科学基金，江苏省农机局科研启动基金 |
| |
| 摘 要： | 给出冲击破碎分析的两倍尺度控制约定,研究粘结态土壤破碎体生成的影响因素,建立了土壤破碎体分形维数与落锤质量、冲击行程、土壤含水率、破碎比能之间的关系.结果表明,土壤破碎体的分形维数与落锤质量及冲击行程没有联系,但分形维数与土壤含水率及破碎比能具有明显的相关性.另外,通过比较得知土壤在冲击作用下的破碎体分形维数远远低于植被土样的分形维数.
|
| 关 键 词： | 粘性土壤 冲击破碎 破碎体分形维数 颗粒尺度分布 |
Fractal Dimensions of Cohesive Soil under Impact and Its Influencing Factors |
| |
| Meng Fengying,Ding Qishuo,Lu Fei,Ding Weimin,Pan Genxing.Fractal Dimensions of Cohesive Soil under Impact and Its Influencing Factors[J].Transactions of the Chinese Society of Agricultural Machinery,2009,40(3):108-111. |
| |
| Authors: | Meng Fengying Ding Qishuo Lu Fei Ding Weimin Pan Genxing |
| |
| Institution: | School of Engineering;Nanjing Agricultural University;Nanjing 210031;China |
| |
| Abstract: | A scaling definition based on two times scale was provided for soil fragmentation analysis.An experiment was conducted to uncover the relationships among soil fragments fractal dimension and the falling weight,falling height,soil moisture content,and specific fragmentation energy.The result shows that no relation exists among fractal dimension,falling weight and falling height,but obvious correlation appears among soil fractal dimension,moisture content and specific fragmentation energies.A further comparis... |
| |
| Keywords: | Cohesive soil Impact fragmentation Fragments fractal dimensions Particle size distribution |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《农业机械学报》浏览原始摘要信息 |
| 点击此处可从《农业机械学报》下载免费的PDF全文 |
|
