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Topic

Transport in agriculture

Volume

Volume 73 / No. 2 / 2024

Pages : 375-382

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INVESTIGATION OF THE REACTION OF SOIL TO MOVEMENT BY PLATES AT VARIOUS INCLINED ANGLES BASED ON 2D-DEM

基于二维离散元法对倾角条件影响土壤-板接触系统相互作用的研究

DOI : https://doi.org/10.35633/inmateh-73-31

Authors

Liangfei FANG

School of Engineering,Anhui Agricultural University

(*) Jun GE

School of Engineering,Anhui Agricultural University

Chengmao CAO

School of Engineering,Anhui Agricultural University

Kuan QIN

School of Engineering,Anhui Agricultural University

Yan SUN

School of Engineering,Anhui Agricultural University

Liangyu YUAN

School of Engineering,Anhui Agricultural University

(*) Corresponding authors:

Abstract

In order to investigate the soil reactions influenced by the single plate with the inclination angles from 0° to 75°, an in-house code of 2D DEM has been developed in this study. An iron flat plate penetrated soil by a constant velocity of 1 mm/s in the study. In the penetration test, the maximum vertical force was 753.8 N which was generated by the 0° plate. In addition, it was found that the less the inclination angle, the greater the vertical force. Furthermore, a greater force in the horizontal direction has been generated at 45° of the inclination angle. This research can provide a theoretical reference for optimizing tools that contact soil, for example, patterns/lugs on wheels, earthmoving blades (such as rotary cultivators, bulldozers, weeding machines etc.) and grouser of tracks.

Abstract in Chinese

本研究旨在利用二维离散元仿真方法对单板倾角从0°变化到90°时土壤反力变化进行研究。在仿真试验过程中,钢材料单板以1mm/s的恒定速度向下贯入。试验结果显示,土壤最大反力为753.8N,与此同时,还发现垂直反力与板的倾角呈现反比关系,而水平反力峰值出现在倾角45°左右。这项研究为优化触土工具提供了理论参考,如胎花、推土刀片(旋耕机、推土机、除草机等)和履刺等等。

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