The characteristics of the continuum-based discrete element method are introduced in detail.
详细介绍基于连续介质的离散元法的特点；
The discrete element method based on static relaxation is extended to three dimensional case.
将基于静态松弛解法的离散单元法推广至三维。
The discrete element method (DEM) is introduced, which includes hard sphere model and soft sphere model.
着重介绍了非连续介质模型中的离散元法(dem)：硬球模型和软球模型。
The static synchronous relaxation discrete element method (SSRDEM) was extended to three dimensional case.
将静态同步松弛离散单元法(SSRDEM)推广至三维。
The static synchronous relaxation discrete element method (SSRDEM) was extended to three dimensional case.
将基于静态松弛解法的离散单元法推广至三维。
The multi-rigid-body discrete element method was proposed for the analysis of deep-ocean mining pipe system.
采用多刚体离散元方法对长管线系统进行计算分析。
Both the general spring coefficient matrix of flexible connector and the mass matrix of discrete element are off-diagonal.
推导出一般情形下柔性连接元的广义弹簧系数矩阵和刚体元的质量矩阵都是非对角的。
Using discrete element method the dynamic behavior of soil is simulated so as to reveal the change law of soil from the microscopic view.
应用离散单元法进行土壤动态行为模拟，从细观上揭示了土壤动态行为的变化规律。
Meanwhile, by some examples studied, the reasonable range of stiffness coefficient has been obtained during the discrete element calculating.
同时，本文还通过算例分析，得到离散单元的计算中块体的刚度系数选取的合理范围。
The dynamic relaxation technique in discrete element method is introduced to solve the permeability field without assembling the global matrix.
采用离散元方法中的动态松驰技术，在无须组装整体渗透矩阵的情况下求解裂隙网格各结点的水头值。
Detection of contacts between 3d blocks is a key problem in 3d DDA (discontinuous deformation analysis) and DEM (discrete element method) analysis.
在三维单元法、三维不连续变形分析法中，三维块体的接触判断是关键的问题之一。
It's known that the discrete element method well considers the discontinuity character of rock mass, and can be used to analyze the joint rock mass.
而离散元法正是充分考虑到岩体结构的不连续性，适用于解决节理岩石力学问题。
The basic principles of DEM(discrete element model), and the equations of particle motion and models of particle particle interaction are introduced.
介绍了离散元（DEM）方法的基本原理、颗粒运动控制方程和颗粒相互作用力的数学模型。
With analog testing, graphical analysis, discrete element calculation method, the features of mining caused fractures of overlaying strata is studied.
本文应用模型实验、图像分析、离散元模拟等方法，对上覆岩层采动裂隙分布特征进行了研究。
Numerical simulations on particle mixing characteristics of spout-fluid bed were carried out in three dimensional based on discrete element method (DEM).
采用离散元方法，对喷动流化床内的颗粒混合特性进行了三维直接数值模拟。
An approach for simulating damage process of prestressed reinforced concrete structures under impact load by applying the discrete element method is presented.
采用离散单元法模拟了预应力钢筋混凝土梁在冲击荷载下的破坏过程。
By establishing the discrete element model of loose object and using ALE coupling algorithm, the simulation of loose medium's casting blast process is performed.
通过建立松散体离散单元模型，采用ALE耦合算法，模拟了松散介质坍塌堆积物的抛掷爆破过程。
The failure criterion, formula and determination of analytical parameters such as spring modulus of the discrete element model for concrete material were presented.
介绍了适于混凝土材料的离散单元模型的破坏准则、计算方程以及弹簧系数等计算参数的确定方法。
This paper analyzes the surrounding rock characteristics of single shell lining only from the mechanical mechanism aspects using the discrete element software of UDEC.
本文仅从力学方面用离散元软件udec分析了洞室围岩的单层衬砌支护特性。
The authors built a discrete element model to simulate the evolution of fault system above active salt domes, and further discussed the influence of rock strength on fault patterns.
作者通过构建离散元模型，模拟主动底辟盐构造断裂系统的演化过程，并进一步讨论了岩性强弱对于主动底劈盐构造断层系统分布模式的影响。
For dynamics modeling of 3d fluid-solids two-phase flows in engineering problem it was brought forward of particles trajectory flexible model based on the discrete element method (DEM).
为解决工程应用中三维流固两相流动力学建模的难题，提出了基于离散单元法(dem)的颗粒群轨道柔性模型。
Let the discrete element method (DEM) be developed into the numerical simulation of 3d fluid-solid two-phased flows, the trajectory flexible model of particle group has been put forward.
将离散单元法(DEM)拓展到三维流固两相流的数值模拟中，提出了颗粒群轨道柔性模型。
We investigate the flow mechanism of this conveyor in a horizontal configuration by a discrete element method (DEM), applying a periodic boundary and omitting the existence of fluid medium.
我们用离散元(DEM)方法研究了这种运输机在水平配置时的流动机制，施加周期性边界条件并忽略流动介质的存在。
The inversion method combining the genetic neural network and the discrete element simulation of triaxial tests is proposed for determining the contact model parameters of the conditioned soil.
将神经网络、遗传算法、三轴实验和离散元数值模拟相结合，用于改性砂土等效离散元接触模型参数反演。
The computer program is developed for landslide blocks stability analysis based on the discrete element method, including the pre - and post processors for results presentation in graphics mode.
研制了基于离散元计算方法的滑坡块体稳定性分析程序，并针对该程序开发了配套的前处理程序和用以结果显示的后处理。
In this paper, a discrete element model for collapse simulation of frame structures is developed. The failure criterion and determination of analytical parameters such as damping are also studied.
本文建立了适合框架结构倒塌分析的离散单元模型，并且研究了模型的破坏准则、阻尼等参数确定方法。
This paper uses the combined finite-discrete element method with smeared rotating crack model to analyze the seismic rupture process simulation of concrete gravity dam under the action of earthquake.
应用联合有限-离散元法结合弥散式旋转裂缝模型分析了地震作用下混凝土重力坝动力破坏过程。
The equivalent discrete element model of the conditioned sands is provided, on the basis of which the DEM numerical model of the slump test and the shear test of the conditioned sands are established.
提出了改性砂土的等效离散元模型，在此基础上建立改性砂土坍落度实验和直剪实验的离散元数值实验模型。
In addition, the jointed element has certain thickness, so the calculative parameter can be determined by those of the actual joint. It embodies the improvement to rigid block discrete element method.
另外，节理单元有实际的厚度，可以根据实际节理的性质确定计算参数，这一点也体现出了对刚性块体离散元方法的改进。
In addition, the jointed element has certain thickness, so the calculative parameter can be determined by those of the actual joint. It embodies the improvement to rigid block discrete element method.
另外，节理单元有实际的厚度，可以根据实际节理的性质确定计算参数，这一点也体现出了对刚性块体离散元方法的改进。
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