CAJ | 학술논문

铲式成穴器是播种机工作过程中用来生成穴孔的成穴装置，为研究铲式成穴器的成穴性能，采用离散元法研究成穴器的工作过程。分别建立成穴器与土壤颗粒的二维离散元仿真分析模型，通过对土壤颗粒与成穴器之间施加合理的力学模型，进行铲式成穴器工作过程的离散元仿真分析。结果表明：随着打穴深度的增加，水平工作阻力的波动较大，而垂直工作阻力变化较小；通过对土壤颗粒动态速度场的分析描述，验证了铲式成穴器理论分析的正确性，证明了采用离散元分析成穴器工作过程的可行性。
산식성혈기시파충궤공작과정중용래생성혈공적성혈장치，위연구산식성혈기적성혈성능，채용리산원법연구성혈기적공작과정。분별건립성혈기여토양과립적이유리산원방진분석모형，통과대토양과립여성혈기지간시가합리적역학모형，진행산식성혈기공작과정적리산원방진분석。결과표명：수착타혈심도적증가，수평공작조력적파동교대，이수직공작조력변화교소；통과대토양과립동태속도장적분석묘술，험증료산식성혈기이론분석적정학성，증명료채용리산원분석성혈기공작과정적가행성。
The spade soil opener is used to dig a hole when the precision punch planter of maize is working. In order to analyze the working process of spade soil opener, the two-dimensional discrete element methods analyzing models of the soil opener and soil granules were built respectively.The working process of the soil opener was simulated based on two-dimensional DEM analyzing models through a reasonable mechanical model. Results show that with the increase in the depth of planting, the level work resistance fluctuated greatly, and the vertical work resistance changes smaller. The analysis of the dynamic of soil particles velocity field demonstrates the correctness of theoretical analysis results. It can be proved that it's feasible to analyze the performances of punch planter by using the discrete element methods.