而对于大变形用离散单元法来求解。
As for the problems of large deformation, the DEM can be used.
用离散单元法模拟了粒状体的直剪试验。
A direct box shear test on granular material is successfully simulated by means of distinct element method.
将基于静态松弛解法的离散单元法推广至三维。
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 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.
采用离散单元法（DEM）对胶结砂土力学特性进行模拟。
This paper presents a numerical investigation of cemented sand behaviours using the distinct element method (DEM).
离散单元法是一种分析和解决非连续体离散的问题的数值计算方法。
Distinct element method is a numerical calculating method for analysing and solving discrete problem of discontinum body.
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。
An approach for simulating damage process of prestressed reinforced concrete structures under impact load by applying the discrete element method is presented.
离散单元法模拟盾构密封舱土压力系统工作过程的首要内容是改性土的模拟。
The first problem for DEM to simulate the work process of the chamber system of the EPB shield machine is the modeling of the conditioned sands.
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。
Using discrete element method the dynamic behavior of soil is simulated so as to reveal the change law of soil from the microscopic view.
在坡体中考虑地下水的影响下，用离散单元法对麻柳嘴滑坡的成因机制进行数值模拟。
With the consideration of the effect of groundwater, Maliuzui landslide's genetic mechanism is numerically simulated with the Discrete Element Method (DEM) in this paper.
本文的研究结果表明，离散单元法在密相气固相流的数值模拟研究中具有广阔的前景。
The result indicates that DEM has wide prospects in numerical simulation of the dense solid-gas flow.
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。
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.
结果表明，推导出的算法是正确的，三维静态同步松弛离散单元法可用于模拟岩体的非连续大变形。
The results indicate that the extension of SSRDEM is correct, and three dimensional SSRDEM is efficacious in modeling the discontinuous large deformation of rock mass.
离散单元法的基本原理是牛顿第二定律，结合不同的本构关系，用动力松弛法按时步进行迭代求解。
The basic principle of the DEM is based on Newton's Second Law of Mot - ion. The whole problem is solved by using the dynamic relaxation method and the time-marching tech...
梁–颗粒模型是在离散单元法基础上，结合有限单元法提出的用于模拟岩石类材料破坏过程的数值模型。
This numerical method used simulating damage and fragmentation phenomena of rock-like materials is presented on the basis of discrete element method (DEM) and lattice model.
采用离散单元法，分析了当荷载、岩体的摩擦角、锚杆间距、锚杆方向和岩体的性质变化时，顶板的稳定性。
Discrete element method is used to analyze the roof stability in accordance with the variation of its loading, rock frictional Angle, bolt spacing, rock properties and bolt orientation.
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。
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).
将岩石力学中的研究方法———离散单元法引入塑料挤出固体输送研究中，并建立了固体输送段的离散输送模型。
This paper introduced the discrete Element Method which was used in rock mechanics into the research of polymer extruder's solid-conveying zone, and set up a discrete transport model.
利用有限单元法离散求解辐射传递方程和能量控制方程。
The finite element method is applied to solve the radiative heat transfer equation and energy conservation equation discretely.
运用边界单元法将边界积分离散化。
The boundary integral equation is discretized by the boundary element method.
基于局部作用原理，借用有限元离散和插值技术，引入元胞自动机的演化思路，得到一种新的力学计算方法——元胞单元法。
Based on principle of local action and the idea of cellular automata, a new mechanical method cellular element method is presented through inducting the discrete techniques of finite element method.
边界单元法降低了求解空间的维数，减少了离散线性方程组的阶数，输入数据比较少，而工作效率高。
This method reduces the number of space dimension, makes the equation system lower order, less data input and higher efficiency .
首先采用有限元法，将撞击体离散成由三维实体单元构成的具有一定初始速度的离散质量系统，对靶板采用二维壳单元离散。
According to Finite Element Method, the impactor is considered as a discrete mass system in terms of 3D solid element with initial velocity, and 2D shell element is used for target plate.
为了提高计算的精度，在边界积分离散化时采用线单元法，并用混合单元法对边界角点进行了处理，计算表明结果是合理的。
In order to enhance the computing accuracy, the mingle unit method is applied at the angle-points. Some numerical examples are given to validate the presented method.
空间上采用有限元线法进行半离散化，采用已有的轴对称单元、平面单元；
Using Finite Element Method of Lines smash the area in semidiscretization with plane or axial symmetry element which is develop by the postgraduate last session;
在提出平均有效应力的概念之后，完成了有限单元法的离散化过程，最后给出了一个完整的计算不连续块体的数值方法。
Damage tensor and pure stress are studied on such a body. Assuming an average effective stress, the constiutive relation for the equivalent damaged body and the reiteration formula- about the fi…
在提出平均有效应力的概念之后，完成了有限单元法的离散化过程，最后给出了一个完整的计算不连续块体的数值方法。
Damage tensor and pure stress are studied on such a body. Assuming an average effective stress, the constiutive relation for the equivalent damaged body and the reiteration formula- about the fi…
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