1) Discrete element
离散元
1.
Nonlinear coupling method for discrete element-infinite element;
离散元-无限元非线性耦合法
2.
Fatigue performance of asphalt pavement based on discrete element
采用离散元法分析路面结构的疲劳特征
3.
Recomment mumerical simulation analyse computation for achor beam support split structure by discrete element 2D-block,study on stress field of split structure roof,roof displacement and destructive form of achor beam roof.
介绍了采用离散元 2D -block对锚梁支护板裂结构顶板进行数值模拟分析计算 ,研究板裂结构顶板的应力场 ,锚梁支护锚杆的轴力以及顶板位移及锚固顶板的破坏形式。
2) discrete element method
离散元
1.
Simulation of mechanical behaviors of granular materials by discrete element method based on mesoscale nonlinear contact law;
基于非线性接触本构的颗粒材料离散元数值模拟
2.
Study on Balance Mechanism of Chamber Soil Pressure of Shield Machine by Discrete Element Method
基于离散元仿真的盾构密封舱压力平衡机理研究
3.
So based on the mining status, many mining schemes were modeling by the 3D elastoplastic finite element method and the discrete element method.
针对柿竹园多金属矿,在形成 200 万方大空区,部分矿柱跨塌,最大顶板连续暴露面积达 8000~2,且不能采用充填法的情况下,如何立足矿山实际情况,合理规划矿产资源的整体开发,确保矿山企业的可持续发展问题,对该矿床的各种可能的开采方案进行了弹塑性有限元、离散元数值模拟研究,模拟研究的结果,对开采方案的确定具有积极的指导意义。
3) DEM
离散元
1.
Top Coal Caving Rule Research of Horizontal Section Caving in Deeply Inclined Coal Seam with DEM Simulation;
急倾斜水平分段放顶煤放煤规律的离散元模拟研究
2.
Experimental Investigation and DEM Simulation of Mass Mixing under Shock Loading;
冲击下材料质量混合的实验研究及离散元模拟
3.
STOCHASTIC MODELAND NUMERICAL SIMULATION FOR DISCONTINUOUS JOINTED ROCK MASS USING 3D DEM;
断续节理岩体随机模型三维离散元数值模拟
4) distinct element method
离散元
1.
Numerical analysis on travelability of lunar soil simulant by means of distinct element method
模拟月壤可行驶性的离散元数值分析
2.
0 of 2D distinct element method are presented.
描述了二维离散元程序UDEC4。
3.
A 2\|D dynamic model coupling the deformation block distinct element method with boundary element method in time domain is established.
本文提出了一种二维变形体离散元与时域边界元的耦合模型 ,这一模型可以将非连续体的模拟与无限域的模拟统一在一个模型中 ,可用于在地震波动输入条件下 ,考虑辐射阻尼的岩体边坡或地下结构等的动力稳定和变形分析 ,拓宽了离散元动力分析的领域 。
5) distinct element
离散元
1.
Numerical modelling and analysis of distinct element on bolt reinforced coal pillar in partial extraction;
锚杆加固条带煤柱的离散元模拟分析
2.
Aiming at the characteristics of large falling height and complex falling configuration in full-mechanized caving mining,three-dimensional distinct element code-3DEC is employed to simulate falling rules of surrounding rock in gob,movement direction of rock beam and possible dynamic loading brought by it with different collapse geometry parameters in full-mechanized caving mining face.
基于综放开采,采空区冒落高度大、冒落形态复杂的特征,采用三维离散元程序3DEC模拟分析了综放工作面岩层不同垮断几何参数时的采空区覆岩冒落规律、岩梁运动趋势及其对采场可能带来的动载荷。
3.
Beside three dimensional distinct element code.
采用三维离散元数值模拟,重点分析了这类边坡在开挖过程中缓倾角结构面的倾角变化、连通率变化对这种阶梯状滑动的影响。
6) discrete element method
离散元法
1.
Application of discrete element method to research and design of working parts of agricultural machines;
离散元法及其在农业机械工作部件研究与设计中的应用
2.
A discrete element method was developed to simulate mixing of elastic materials with the predictions compared to fall-off mixing tests of plastic balls.
为了现实有效地离散弹性体材料拌合的数值模拟,采用离散元法,开发了离散弹性体材料拌合离散元模拟系统。
3.
Base on the basic principles of discrete element method(DEM),A two dimensional DEM emulator named SieveDEM was developed by a VC++.
基于颗粒离散元法的基本原理,采用VC++。
补充资料：离散时间周期序列的离散傅里叶级数表示
(1)
式中χ((n))N为一离散时间周期序列，其周期为N点，即
式中r为任意整数。X((k))N为频域周期序列，其周期亦为N点，即X(k)=X(k+lN)，式中l为任意整数。
从式(1)可导出已知X((k))N求χ((n))N的关系
(2)
式(1)和式(2)称为离散傅里叶级数对。
当离散时间周期序列整体向左移位m时,移位后的序列为χ((n+m))N，如果χ((n))N的离散傅里叶级数(DFS)表示为,则χ((n+m))N的DFS表示为
式中χ((n))N为一离散时间周期序列，其周期为N点，即
式中r为任意整数。X((k))N为频域周期序列，其周期亦为N点，即X(k)=X(k+lN)，式中l为任意整数。
从式(1)可导出已知X((k))N求χ((n))N的关系
(2)
式(1)和式(2)称为离散傅里叶级数对。
当离散时间周期序列整体向左移位m时,移位后的序列为χ((n+m))N，如果χ((n))N的离散傅里叶级数(DFS)表示为,则χ((n+m))N的DFS表示为
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条