| 模型铲刀表面的法向压力及其土壤粘附 |
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| 引用本文： | 李因武,李建桥,任露泉,崔占荣.模型铲刀表面的法向压力及其土壤粘附[J].农业机械学报,2002,33(6):100-102. |
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| 作者姓名： | 李因武 李建桥 任露泉 崔占荣 |
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| 作者单位： | 吉林大学地面机械仿生技术教育部重点实验室 |
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| 基金项目： | 国家自然科学基金 (项目编号 :5 983 5 2 0 0 )，博士基金 (项目编号 :19990 185 0 4)资助项目 |
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| 摘 要： | 采用模型试验法，利用模型铲刀和小型压力传感器对模型铲刀表面的法向压力分布规律及土壤流动、粘附情况进行了试验研究，拟合出模型铲刀表面法向压力的回归方程。研究结果表明，法向压力在模型铲刀表面呈二次曲面分布，在模型铲刀的中部取得最大值。法向压力的变化引起土壤变形区域的含水量发生改变，导致土壤粘附主要发生在模型铲刀的上部和下部。
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| 关 键 词： | 模型铲刀 法向压力 土壤粘附 土壤力学 |
| 修稿时间： | 2001年9月3日 |
Normal Pressure and Soil Adhesion on the Surface of Model Blade |
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| Li Yinwu,Li Jianqiao,Ren Luquan,Cui Zhanrong.Normal Pressure and Soil Adhesion on the Surface of Model Blade[J].Transactions of the Chinese Society of Agricultural Machinery,2002,33(6):100-102. |
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| Authors: | Li Yinwu Li Jianqiao Ren Luquan Cui Zhanrong |
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| Institution: | Jilin University |
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| Abstract: | Adopting the method of the model experimentation, the normal pressure on the surface of model blade was measured by self regulating model blade and small pressure sensors. Based on test results, the distribution surface of normal pressure was drawn up. During the soil cutting process, the flexible destruction and adhesion of the soil on the surface of model blade was discussed. The experimental result shows that the normal pressure distribution on the surface of the model blade is a conicoid, the maximum of the normal pressure is in the middle of the model blade. It causes the change of the moisture content of soil, the decrease of tangential adhesion and sliding resistance, and the increase of normal adhesion force in the middle of the arc section of the model blade. As a result, the stuck soil is mainly distributed on the upper and lower sections of the model blade |
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| Keywords: | Model blade Pressure Adhesion Soil mechanics |
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