| 稻谷内摩擦角的测定与实验研究 |
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| 引用本文： | 安蓉蓉,曹阳,程绪铎,李光涛,程龙.稻谷内摩擦角的测定与实验研究[J].粮食储藏,2009,38(3):31-33. |
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| 作者姓名： | 安蓉蓉 曹阳 程绪铎 李光涛 程龙 |
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| 作者单位： | 1. 南京财经大学食品科学与工程学院,南京,210003
2. 国家粮食局粮食科学研究院,北京,100080 |
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| 基金项目： | 国家粮食局粮食科学研究院课题 |
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| 摘 要： | 主要对稻谷的内摩擦角进行了测定与实验研究.测定了稻谷的内摩擦角,并探讨了影响内摩擦角的因素.实验结果表明:剪切速度最佳为5.20 mm/min,稻谷的内摩擦角随着法向压力的增大而减小,低速剪切速度变化对内摩擦角的影响不明显,水分变化对其影响也不明显.根据实验结果,拟合出内摩擦角与法向压力的关系方程.
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| 关 键 词： | 稻谷 内摩擦角 法向压力 |
MEASUREMENT AND EXPERIMENT STUDY ON INTERNAL FRICTION ANGLE OF PADDY |
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| An Rongrong,Cao Yang,Cheng Xuduo,Li Guangtao,Cheng Long.MEASUREMENT AND EXPERIMENT STUDY ON INTERNAL FRICTION ANGLE OF PADDY[J].Grain Storage,2009,38(3):31-33. |
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| Authors: | An Rongrong Cao Yang Cheng Xuduo Li Guangtao Cheng Long |
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| Institution: | 1 College of Food Science and Engineering;Nangjing University of Finance and Economics;Nanjing 210003;2 Academy of State Administration of Grain;Beijing 100080 |
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| Abstract: | In this paper the internal friction angle of paddy was studied and measured.It also discussed the factors influencing the angle of internal friction.The results showed that the best shear rate should be 5.20 mm/min,and the internal friction angle of paddy decreased with vertical pressure increasing,low shear rate and the moisture content had little influence on it.Based on the results,fitted equation about vertical pressure and angle of internal friction was built. |
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| Keywords: | paddy angle of internal friction vertical pressure |
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