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。