查询词典 numerical method

It is usually that the solution for the Dirichlet problem can not be obtained actually. With the development of computers, people pay more and more attention to the numerical solution. Many ideas and methods have appeared. Among them the finite element method has become most popular. But the finite element method has some weaknesses and limitations too.

绝大多数Dirichlet问题的解析解往往难以得到，随着计算机技术的发展，Dirichlet问题的数值解法越来越受到人们的重视，新的思想和方法不断涌现，其中有限元法已经发展成为目前求解Dirichlet问题的最主要的数值方法，但是有限元法解决该问题时，存在着一些弱点和局限。

As to the problem of divergency of conventional power flow method,By using an augment eqution this method can get the exact limit of voltage stability and the whole PV curve without encountering the numerical difficulty of ill-conditioning.

针对常规潮流法在鞍结分岔点附近不收敛，该方法通过增加一维潮流方程，消除了功率极限点附近的雅可比矩阵奇异的现象，获取精确的电压稳定极限和整支PV 曲线。

We explicitly derive a domain of attraction for the positive equilibrium of system by using Liapunov method. We also investigate Hopf bifurcation by using Hassard method. Finally, some numerical simulations are made for system.Our paper are separated into seven chapters.

本文对一类具时滞和比率依赖的HollingⅢ型捕食-食饵系统进行了研究，利用Liapunov方法精确估计了正平衡点的吸引域，并利用Hassard方法研究了系统的Hopf分支，最后本文对一个具体模型进行了数值模拟。

Some new viewpoints are also discussed besides the development of researches already explored. The above mentioned aspects include exploring ne w elementary technique, possible scheme for simplifying the structure, achieveme nt of dynamic area decomposing method, establishment of distributed parallel pro cessing system and application of similarity method in numerical simulation of w elding process.

除对本研究组已开展的工作进行了一定的分析外，并对某些未来的研究发展方向进行了初步的探讨，这些可能进行的研究包括单元技术的开发、可行的结构简化方案、动态区域分解算法的实现、分布式并行处理系统的建立和相似原理在焊接过程中的应用等。

The meshless local Petrov-Galerkin method is a new numerical technique presented in recent years, for it doesn't need any element or mesh for the energy integral or the purpose of interpolation, and it's termed as a truly meshless method.

无网格局部Petrov-Galerkin方法是近几年发展起来的一种相对较新的数值方法，它不需要借助任何的单元或网格来进行积分或插值，是一种真正的无网格方法。

The meshless local Petrov-Galerkin method is a new numerical technique presented in recent years. It doesn't need any element or mesh for the energy integral or the purpose of interpolation. Therefore it is a truly meshless method.

无网格局部Petrov-Galerkin方法是近几年发展起来的一种无网格方法，它不需要借助任何单元或网格进行积分和插值，是一种真正的无网格方法。

Based on the principle of equilibrium of nodal forces , and using the sub structure method as a numerical analysis tool, a new type of configuration analysis method for membrane, cable membrane is presented in detail in this paper.

本文针对膜、索膜结构的形态分析问题，以节点力平衡原理为基础，结合子结构的数值计算方法，提出了解决该类问题的一种新方法。

In the text, differential coefficient method and numerical value differential coefficient method have been introduced for crank slide block machine accuracy analysis, and influence of the fitting clearance of moving pair to component moving error has been given.

文章介绍了微分法及数值微分法曲柄滑块机构精度分析，说明了运动副的配合间隙对构件运动误差的影响。

On the basis of the knowledge highway's ruin of the past, in high earthquake intensity area of highway, underground structure may be fall into ruin for the seismic motion, especially, the entrance of tunnel is the weakest of the tunnel. As based on the soil-structure interaction model, adopting the soft of FLAC3D and numerical analysis method, the tunnel entrance has been computed by the elastic and plastic method, the results obtained are discussed and the measures for design and solution are presented.

根据以往的受震破坏经验，在公路隧道的高烈度地震带，地下工程可能会遭受严重震害，尤其洞口段为抗震薄弱区，本文采用FLAC3D软件，从土－结构相互作用模型出发，运用数值分析方法对隧道洞口段进行了三维弹性和弹塑性分析，得出了相应结论，并对结果进行分析，指出隧道抗减震设计中应注意的事项，并提出相应解决措施。

The method of calculation of fiber model numerical value that established steel tube to restrain a ferroconcrete to control curved component part, use in computation follow the addition of load and increase steel tube to be opposite ceaselessly the restrains effect method of core concrete, numeric computation result and test result be identical are good.

建立了钢管约束钢筋混凝土压弯构件的纤维模型数值计算方法，计算中采用随荷载的增加而不断增大钢管对核心混凝土的约束效应的方法，数值计算结果和试验结果吻合良好。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。