提出了采用基于颗粒接触力学原理的离散元法对耕作土壤动力学问题进行数值模拟的新思路。
A new simulation strategy using the Discrete Element Method (DEM) based on spherical particle contact mechanics to tillage soil dynamics was proposed.
研究结果表明，从模拟连续模型的精度上看，时域离散化使集中质最有限元法优于一致质量法，前者可取较大时间步长。
This paper shows that the time discretization makes the lumped-mass method much better than the consistent-mass one as accuracy is concerned for simulating wave motion in the continuous model.
利用离散元法，对爆炸排淤的“石舌”形成过程进行了模拟和动画显示，并对模拟结 果进行了分析。
The paper presents a successful numerical simulation of the stone tongue formation in blasting toe-shooting by distinct element method, and an analysis of the numerical simulation results.
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