首页|Simulation of rice grain breakage process based on Tavares UFRJ model

Simulation of rice grain breakage process based on Tavares UFRJ model

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Understanding the breakage characteristics of rice grains is an important means to reduce rice breakage rate.However,the dynamic breakage mechanism of rice grain is unclear due to the lack of a reasonable breakage model.In this study,the uniaxial compression test and drop weight test of single rice were carried out,the breakage model of rice grain was constructed,the reliability of rice model was verified by the experiment and simulation results.The results showed that the fracture energy distribution of rice can be obtained by uniaxial compression test,the specific fracture energy of rice accords with a lognormal distribution,and the median specific fracture energy of rice is 479.75 J/kg.The damage accumulation coefficient and fragment size distribution of rice can be acquired by drop test,the result of damage accumulation coefficient of rice was 4.3.Rice grain breakage mainly occurs in the milling section of the vertical circulation rice mill.

Rice breakage mechanismDiscrete element methodParameter calibration

Shaohang Shen、Shouyu Ji、Dan Zhao、Yanlong Han、Hao Li、Ze Sun、Zhuozhuang Li、Anqi Li、Wenyu Feng、Jiaming Fei、Fuguo Jia、Yang Li

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College of Engineering,Northeast Agricultural University,Harbin 150030,China

School of Water Conservancy and Civil Engineering,Northeast Agricultural University,Harbin 150030,China

College of Food Science,Northeast Agricultural University,Harbin 150030,China

Heilongjiang Provincial Postdoctoral Science FoundationHeilongjiang Provincial Postdoctoral Science FoundationNational Natural Science Foundation of China

LBH-Z22008LBH-Z2309811802057

2024

颗粒学报(英文版)
中国颗粒学会 中国科学院过程工程研究所

颗粒学报(英文版)

CSTPCD
影响因子:0.632
ISSN:1674-2001
年,卷(期):2024.93(10)