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首页> 外文会议>2004 CIGR International Conference : Collection of Extent Abstracts >Simulation of Force on Nonsmooth Bulldozing Plateby Distinct Element Method
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Simulation of Force on Nonsmooth Bulldozing Plateby Distinct Element Method

机译：非光滑推土板作用力的离散元模拟

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The basic theory of Distinct Element Method (DEM) was introduced in brief. Based onthe mechanical microstructure of soil, the DEM mechanical model of soil was established. Fromaspects of the qualitative and the quantitative analyses respectively, the dynamic simulations byDEM between soil and two bulldozing plates, with a plane smooth and a nonsmooth surface,were contrastively analyzed. The results of qualitative analysis indicated that cutting of soilclusters by the crowns on the nonsmooth bulldozing plate and uplifting of the crowns on thenonsmooth bulldozing plate by soil reduce the forces acting on the nonsmooth bulldozing platecompared with the forces acting on the smooth bulldozing plate by soil. The results ofquantitative analysis indicated that the horizontal force of the nonsmooth bulldozing plate isslightly smaller than that of the smooth bulldozing plate. The vertical force of the nonsmoothbulldozing plate is much smaller than that of the smooth bulldozing plate. These phenomena areconsistent with those of the real experiments. The establishment of the DEM mechanical modelof soil and the dynamic simulation and contrastive analysis of the mechanical behavior of theinteractions between soil and two bulldozing plates with different surface provide an importanttheoretical foundation for optimizing the soil-tool interaction and designing a new-stylebulldozing plate.;
机译：简要介绍了离散元方法（DEM）的基本原理。基于 建立了土的力学微观结构，建立了土的DEM力学模型。从 定性和定量分析的各个方面，通过 在土壤和两个推土板之间的DEM，具有平坦的表面和不光滑的表面， 进行对比分析。定性分析的结果表明，土壤cutting割 由不光滑的推土板上的树冠聚簇，树冠上的树冠隆起 不光滑的推土板通过土壤减小作用在不光滑的推土板上的力 与土壤作用在光滑推土板上的力相比。结果 定量分析表明，非光滑推土板的水平力为 略小于光滑的推土板。不光滑的垂直力 推土板比光滑的推土板小得多。这些现象是 与实际实验一致。建立DEM力学模型 土力学特性的动态模拟与对比分析 土壤与两个具有不同表面的推土板之间的相互作用提供了重要的信息 优化土工具相互作用和设计新型工具的理论基础 推土板。

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