| 正转旋耕土壤破碎情况的研究 |
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| 引用本文： | 孔令德,桑正中. 正转旋耕土壤破碎情况的研究[J]. 农业机械学报, 2001, 32(3): 31-32,54 |
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| 作者姓名： | 孔令德 桑正中 |
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| 作者单位： | 1. 太原重型机械学院工程机械研究室副教授博士,
2. 江苏理工大学农业机械教研室教授, |
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| 基金项目： | 山西省青年科学基金资助项目! (项目编号 :9912 0 3) |
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| 摘 要： | 测量了不同工况下的正转旋耕机耕作后土壤的质量百分比，获得了对应的土壤破碎的分形维数。结果表明：耕后地表土块尺寸的分布是一种分形，此分形维数可作为评估旋耕碎土质量的一项重要指标。
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| 关 键 词： | 旋转耕耘机 土壤破碎 分形 正转旋耕 |
Evaluation of Crushing Soil from Rotary Tillage |
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| Kong Lingde,Sang Zhengzhong. Evaluation of Crushing Soil from Rotary Tillage[J]. Transactions of the Chinese Society for Agricultural Machinery, 2001, 32(3): 31-32,54 |
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| Authors: | Kong Lingde Sang Zhengzhong |
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| Affiliation: | Kong Lingde(Taiyuan Heavy Machinery Institute) Sang Zhengzhong(Jiangsu University of Science and Technology) |
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| Abstract: | The traditional method to evaluate crushing soil from rotary tillage totally depends on experiments. Because there is no theory to be followed,many parameters about crushing soil can not be determined. The fractal theory is a new one put forward by Mandelbrot in 1980s and we employ this theory to the area of evaluation of crushing soil for the first time. The conclusion is that when the rotary tiller keeps the moving speed constant the fractal dimension increases with rotor speed increasement; when the rotary tiller keeps rotor speed constant the fractal dimension decreases with moving speed increasement .The higher fractal dimension means soil is greatly broken and the small one means lightly broken.The fractal dimension is a critical factor to evaluate crushing soil quality. |
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| Keywords: | Rotary plow Soil Breaking Fractal |
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