采用多刚体离散元方法对长管线系统进行计算分析。
The multi-rigid-body discrete element method was proposed for the analysis of deep-ocean mining pipe system.
采用三维离散元方法，模拟含节理岩块的单轴受压试验。
Discrete element method (DEM) based numerical simulation is conducted for the jointed rock under uniaxial press loading.
分析的具体行为的影响骨料级配，颗粒-弹簧模型离散元方法。
For analyzing the influence of aggregate gradation on the concrete behavior, the grain-spring model of discrete element method is presented.
同时，对离散元方法的应用，特别是参数选取进行了有益的探讨。
Meanwhile a new way to determine the contacting parameters for discrete element analysis is presented.
利用离散元方法对颗粒在振动给料机中的运动过程进行了数值研究。
The moving process of solid particles in a vibrating feeder is investigated by means of Discrete Element Method.
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。
Numerical simulations on particle mixing characteristics of spout-fluid bed were carried out in three dimensional based on discrete element method (DEM).
利用J 2流动理论各向同性硬化原理，结合离散元方法，建立筒型基础土体本构关系。
The constitutive relationship of bucket foundation was analyzed by the principle of J2 flow theory and isotropic based on a deformable distinct element method.
通过对几种离散元方法接触关系的比较，讨论了在不同的计算模型中结构面刚度所代表的物理意义。
By comparison of several different DEM contact relationships, the physical meaning of joint stiffness in different computational models is discussed.
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。
The dynamic relaxation technique in discrete element method is introduced to solve the permeability field without assembling the global matrix.
选择典型地质剖面，分别建立岩体力学模型，运用有限元及离散元方法进行模拟，确定坝址斜坡变形破坏机制模型；
To simulate the dynamic process and analyze the mechanics mechanism of the slope using the methods of finite element and distinct element;
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.
节理岩体斜坡的失败通常有较大的变形和不连续的特点，因此，节理岩体斜坡稳定性分析，离散元方法成为一种有效的方式。
The failure of jointed rock slopes usually has large deformation and discontinuous features; therefore, discrete element method becomes an efficient way for stability analysis of jointed rock slopes.
为进行连续介质到非连续介质转化的数值模拟，实现结构破坏过程的仿真分析，将固定和旋转的弥散裂缝模型与变形体离散元方法结合应用于混凝土、岩石等准脆性材料的受拉开裂过程分析。
Fixed and rotating smeared-crack models based on a deformable distinct element method were developed to analyze the fracture of quasi-brittle materials such as concrete and rock under tension.
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。
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.
本文通过引进“概率元”，把连续型和离散型两类求概率分布的方法统一起来，建立起“概率元法”的理论及其计算方法。
Introduced is this paper are the probability differential method and the unify way of calculating the probability distribution of the continuous type and that of the discrete type.
对有限元和有限差分的数值计算提出了井孔奇点修正和以沟代井列的计算方法，从而提高了离散化网络的计算精度，并可简化取代三维问题为二维。
The method for correction of singular points of wells and the calculation method of well row replaced by a ditch in the numerical FEM and FDM computations were proposed in this paper.
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。
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.
最后，利用人工神经网络原理，对其支护参数进行了研究，并提出了利用离散元来确定二次支护时间的方法。
Lastly, timbering parameter is studied by utilizing Artificial NeuralNetwork (ANN), and put forward using Discrete Element Method (DEM) to confirm 2nd support time.
本文运用三维有限元方法离散水体，研究了箱形术体的自振频率及动水压力振型。
In this paper, the natural frequencies and modes of box water body researched by using three-dimensional finite element method.
将土与群桩体系视为一个整体进行有限元离散，采用等效线性化方法考虑土体的动力非线性性能。
The interaction system as an integrality is modeled by some finite elements and the dynamic nonlinearity of soils is considered through the equivalent linearity method.
本文方法与现有的离散化有限元法相比，具有输入数据简单，运算速度快，大量节省计算机内存的优点。
In comparison with the current discretization finite element method, the present method has the merits of easy data input, quick operation and storage saving in computer analysis.
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。
With analog testing, graphical analysis, discrete element calculation method, the features of mining caused fractures of overlaying strata is studied.
有限元法是一种离散化的方法，它可以直接用来计算荷载不同、刚度不同的各种情况。
The finite element method is a dispersed method, so it can be used directly to calculate the status for different loads, rigidity, etc.
我们在第二章中构造了求解用旋转Q_1有限元离散椭圆型偏微分方程的区域分解方法。
In the second chapter, we present an additive Schwarz preconditioner for the rotated Q_1 finite element discretization of second order elliptic problem.
类似的复杂情况可能发生在离散动力系统中，基于元胞自动机的模型为研究动力系统行为提供了另一种可供选择的方法。
The similar complex situation possibly occurs in the separate dynamic system, based on Cellular Automata model for the research dynamic system behavior provided another optional method to be possible.
为了获取三维数值化概念机模型的浸润面积和横截面积等几何特性，本文提出了一种基于离散化面元的估算方法。
To estimate the geometric characteristics, especially wet areas and section areas, of three dimensional numerical conceptual aircraft models, a method based on surface elements is proposed.
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.
利用间断时空有限元方法对方程进行离散，即允许近似函数在时间节点处是间断的。
The equation is discretized by discontinuous Galerkin finite element method, that is approximating functions being discontinuous at the nodes of partition in time.
方法在NO扩散的点源模型基础上，构建了一个离散化神经元群的平板模型。
Method Based on point model regarding a single neuron as a point source, a discrete plat model of NO diffusion was established.
方法在NO扩散的点源模型基础上，构建了一个离散化神经元群的平板模型。
Method Based on point model regarding a single neuron as a point source, a discrete plat model of NO diffusion was established.
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