在流体动力学中多数问题可通过后一种方法解决,这意味着流体可被看做是一种连续体——也就是说,流体是一种假设的连续性物质。
In most problems in fluid dynamics the latter approach is possible, which means that the fluid can be regarded as a continuum-that is, a hypothetically continuous substance.
我想了解一下,除了坐在前面的老朋友之外,大家有多少人对“发现”项目的问题解决连续体模式了解多少?
So I'd like to know how many of you, beside my friend in the front, are familiar with the DISCOVER problem solving continuum?
研究了具有随机参数的连续体结构在频率概率约束下的动力特性拓扑优化问题。
Based on frequency probability constraints, the models of topology optimization for a bending thin plate and a plain stress thin plate are constructed.
应用连续体振动理论和SAP5结构分析有限元程序,分析了液化石油气充瓶站管线振动问题。
Based on continuum theory, the vibration of pipeline in LPG filling stations has been analyzed by using the finite element program (SAP5) of structure analysis.
连续体结构的拓扑优化本质上是一种0-1离散变量的组合优化问题。
Topology optimization of a continuum structure is essentially a 0-1 discrete variable optimization problem.
由于岩体具有不均匀性、不连续性和随时间变化的特性,目前在层状岩体边坡工程的岩体力学参数选取方面仍然存在一些问题。
Because rock mass possesses heterogeneity, discontinuity and rheology property, there exists some problems on the choice of rock mass mechanical parameter of layer rock mass slope engineering.
目前,连续体结构的拓扑优化问题几乎都是基于有限元法。
At present, the topology optimization problems of continuum structures are mostly based on the finite element method.
本文讨论了连续体结构拓扑优化的均匀化方法及其相关理论,分别针对静力问题和特征值问题建立了相应的结构拓扑优化模型。
The topology optimization models of the static problem and the eigenvalue problem for the continuums based on the homogenization method are proposed in this paper.
该文根据连续体振动理论,对某二氧化碳吸收管线的振动问题进行了深入的分析。
The vibration problem of pipeline in one CO2 absorption unit has been analyzed deeply base on continuous body vibration theory in this paper.
将平面连续弹性体的几何边界形状考虑为随机量,建立了描述这种连续体特征值问题的随机微分方程和边界条件。
Regarding the boundary shape of elastic structures as random variables, stochastic equations and boundary conditions that govern eigenvalue problems are set up.
基于多重势面弹塑性理论分析局部化问题,构造了适用于裂隙岩体破坏的多重势面不连续分叉模型,建立了求解局部化方向的数值方法。
In the framework of the multiple potential surface elastoplastic theory, the discontinuous bifurcation model used to simulate the failure of the jointed rocks is presented in this paper.
有限元法把分析的连续体划分成许多较小单元,在单元之间满足线性方程,因此有限元法为非线性问题转化为线性问题提供了方法。
It analyzes a continuous body by grinding units which satisfy linear equations. Therefore, this method provides a way for transforming nonlinear problems into linear ones.
介绍了连续体结构拓扑优化中的棋盘格式现象及其产生的原因,并对目前解决这一问题的各种方法做了分析比较。
Checkerboard in topology optimization of the continuum and the reason for the formation are introduced. Several methods to avoid this pattern are discussed.
大坝周围岩体的渗流通道大多为裂隙网络,用连续介质渗流模型难以解决这一问题。
Much of seepage paths is fracture network in rock mass surrounding dam. It is difficult to solve this seepage problem in fracture network by using continuum model.
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.
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。
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.
第四章研究了基于遗传算法的连续体结构拓扑优化问题。
Next, GA based topology optimization methods of continuum structures are studied in chapter 4.
对于板壳问题,共有三种数值模拟方案:线性或非线性的板壳理论、退化连续体方案和直接三维连续体方案。
There are three approaches in numerical simulation of plate and shell structures: plate and shell theory approach, degenerated continuum approach, direct three-dimensional(3D) continuum approach.
离散元法是基于不连续性假设的数值方法,它特别适合于求解节理岩体中的非连续性问题。
The Distinct Element Method(DEM)is a discontinuum-based numerical method especially applicable to solve the discontinuity problems in jointed rock mass.
离散元法是基于不连续性假设的数值方法,它特别适合于求解节理岩体中的非连续性问题。
The Distinct Element Method(DEM)is a discontinuum-based numerical method especially applicable to solve the discontinuity problems in jointed rock mass.
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